CN116236672A - Catheter control device and control method for vascular interventional surgery - Google Patents

Abstract

The invention discloses a catheter control device and control method for vascular interventional operations. The control device includes a first base plate, and the catheter is arranged on the first base board so as to be able to move back and forth. The exposed leaking part of the exposed blood vessel is sequentially connected, and the control device also includes a protective sleeve that can be sleeved outside the exposed leaking part to protect the exposed leaking part. The device also includes a driving mechanism arranged on the first bottom plate, and the driving mechanism is used to drive the catheter and the protective sleeve to move in opposite directions at the same time relative to the first bottom plate, and the two moving strokes are the same. The catheter control device for vascular intervention can control the protective sleeve to move in the opposite direction and follow the movement of the catheter when the length of the catheter inserted into the blood vessel of the human body is different forward or backward, so as to effectively protect the catheter.

Description

Catheter control device and control method for vascular interventional surgery

technical field

The invention relates to the technical field of medical supplies, in particular to a catheter control device and control method for vascular interventional operations.

Background technique

With the development of society and economy, cardiovascular disease has become the disease with the highest mortality rate in the world. At present, cardiovascular interventional surgery has been widely used in the treatment of vascular diseases. Catheter advancement is a key step in vascular interventional surgery. During the operation, the length of the catheter inserted into the human blood vessel needs to be constantly adjusted. With the change of the length of the catheter inserted into the human blood vessel, the length of the part of the catheter exposed to the human blood vessel will change accordingly. Variety. The part of the length of the catheter exposed to the blood vessel of the human body needs to be protected by a protective sleeve to prevent the catheter from being polluted due to bare leakage, thereby avoiding fungal infection when the catheter is inserted into the blood vessel of the human body. In the prior art, there is a problem that the protective sleeve cannot follow the movement of the catheter in time and make a corresponding movement, so that the catheter cannot be effectively protected.

Contents of the invention

The object of the present invention is to address the deficiencies in the prior art and provide a catheter control device for vascular interventional surgery. The opposite direction follows the movement of the catheter and moves accordingly, thereby effectively protecting the catheter.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A catheter control device for vascular interventional operations, comprising a first base plate on which the catheter can move back and forth, the front part of the catheter includes an insertion part inserted into a blood vessel and sequentially connected with the insertion part The exposed part of the blood vessel is exposed. The control device also includes a protective sleeve that can be sleeved on the outside of the exposed part to protect the exposed part. on the first bottom plate, the control device further includes a driving mechanism arranged on the first bottom plate, and the driving mechanism is used to drive the guide tube and the protective sleeve to face the first bottom plate in opposite directions at the same time. The bottom plate moves, and the guide tube and the protective sleeve move the same stroke.

Preferably, the driving mechanism includes a gear rotatably arranged on the first bottom plate, a first rack gear meshed with the gear to drive the protective sleeve to move back and forth, and a gear rack meshed with the gear to drive A second rack that drives the catheter to move back and forth, the first rack and the second rack both extend in the front and rear direction, the first rack and the second rack are respectively arranged on the gear opposite sides of the . When the gear rotates, the first rack and the second rack can be driven to move in opposite directions, so that the catheter and the protective sleeve move in opposite directions at the same time, so that the protective sleeve can follow the movement of the catheter Adaptive movement, so that the catheter can be effectively protected from contamination of the catheter.

Further, the control device also includes a clamping mechanism for clamping the protective sleeve and a first guide mechanism for guiding the forward and backward movement of the protective sleeve, and the clamping mechanism is fixedly arranged on On the first rack, the guide tube is arranged on the first guide mechanism, and the second rack is fixedly arranged on the first guide mechanism.

Further, the clamping mechanism has a clamping portion for clamping the protective sleeve, the first guide mechanism has a guide groove extending in the front-rear direction and matching with the clamping portion, and the clamping portion protruding into the guide groove and being able to slide relative to the guide groove along the length extension direction of the guide groove. The protection sleeve is guided through the cooperation of the guide groove and the clamping portion, so that the protection sleeve can better follow the movement of the catheter and perform adaptive movement.

Further, the protective sleeve is cut along a busbar, and the protective sleeve has a closed state contracted into a circle and an expanded state expanded to both sides of the busbar, and the front part of the first guide mechanism is provided with There is an opening mechanism that keeps the protective sleeve in an open state to enable the catheter to extend into the protective sleeve. By setting the opening mechanism, the protective sleeve can be opened from the closed state, so that the catheter can be inserted into the protective sleeve, so that the protective sleeve can wrap the catheter therein for protection after the protective sleeve passes through the opening mechanism.

Furthermore, the mouth opening mechanism includes a base for placing the protective sleeve and a supporting claw provided on the base, and the supporting claw can extend from the incision position of the protective sleeve to the inside the lumen of the protective sheath to expand the protective sheath.

In a preferred embodiment, there are two supporting claws, the two supporting claws are arranged at intervals along the left and right directions, and the distance between the two supporting claws is not less than the outer diameter of the catheter. In this way, the catheter can be inserted into the lumen of the protective sleeve from the space between the two supporting claws, and the length of the two supporting claws inserted into the lumen of the protective sleeve can be long enough to make the protective sleeve stretch. The increased degree of opening makes it easier for the catheter to be inserted into the lumen of the protective sheath.

Further, the front part of the seat body is provided with an accommodating groove for placing the protective sleeve, the first guiding mechanism has a guiding groove extending along the front and rear directions, and the positions of the accommodating groove and the guiding groove Correspondingly, an opening for inserting the catheter into the guide groove is provided at a position close to the opening mechanism at the front of the first guide mechanism.

Further, the clamping mechanism includes a clamping seat, and the clamping seat is provided with a clamping part for clamping the protective sleeve, and the clamping mechanism also includes a A linkage mechanism for clamping the protective sleeve in the clamping portion, the linkage mechanism includes an operating member rotatably disposed on the clamping seat, and a slidably disposed The locking piece on the holding seat and the connecting piece whose one end is rotatably connected to the operating piece, the other end of the connecting piece is rotatably connected to the locking piece, and the locking piece can be opposite to the clamping seat slidingly protruding into the clamping part to clamp the protective sleeve, or disengage from the clamping part to loosen the protective sleeve. The protective sleeve can be clamped in the clamping part through the link mechanism, so that the protective sleeve can be driven to move back and forth synchronously with the clamping mechanism through the clamping mechanism, which can avoid the action lag of the protective sleeve due to ineffective clamping. Therefore, the problem of not being able to respond to the movement of the catheter in time.

Preferably, the drive mechanism further includes a first bevel gear, a second bevel gear and a motor, the first bevel gear is fixed coaxially with the gear, and the second bevel gear is coaxial with the motor shaft of the motor The shaft is fixed, and the first bevel gear meshes with the second bevel gear. The transmission direction can be changed through bevel gear transmission, so that the overall structure of the device is more compact.

Further, the control device further includes a second guide mechanism for guiding the forward and backward movement of the first rack, and the second guide mechanism includes a The first guide rail of the first guide rail and the first slider that can be slidably arranged on the first guide rail along the length extension direction of the first guide rail, the first slider is fixedly arranged on the first rack, so The control device further includes a third guide mechanism for guiding the forward and backward movement of the second rack, and the third guide mechanism includes a second guide rail fixed on the first bottom plate and extending along the front and rear direction and a second slider that can be slidably arranged on the second guide rail along the length extension direction of the second guide rail, the second slider is fixed on the bracket, and the second rack is fixed on the on the stand. The second guide mechanism can guide the forward and backward movement of the second rack, that is, the catheter, so as to prevent the catheter from deviating from the movement path and damaging the human blood vessels during the forward and backward movement. The first rack, that is, the clamping mechanism, can be guided by the first guide mechanism. The back and forth movement of the guide tube is guided so that the protective sleeve can follow the movement of the catheter and move back and forth.

Preferably, the control device further includes a first limit mechanism for limiting the forward and backward movement of the conduit, and the first limit mechanism includes first As for the limiting block, the guide tube is slidably arranged on the first bottom plate forward and backward through the bracket, and the first limiting blocks at the front and rear ends are all located on the sliding path of the bracket to block the sliding of the bracket. The setting of the first limit block can prevent the support from sliding out of the second guide rail.

Further, the control device further includes a controller, and the first limit mechanism further includes limit switches respectively arranged at the front and rear ends of the first bottom plate and arranged on the bracket to communicate with the limit switches. The sensor used in conjunction with the switch, the limit switch is electrically connected with the controller. The signal is sent to the controller through the limit switch, and the rotation of the motor can be controlled by the controller, thereby controlling the stroke of the bracket and the catheter.

Preferably, the control device further includes a manual fine-tuning mechanism for manually driving the catheter and the protective sleeve to move forward or backward synchronously, and the manual fine-tuning mechanism includes a second Two bottom plates, the first bottom plate can be slidably arranged on the second bottom plate in the front-rear direction, and the manual fine-tuning mechanism also includes a locking mechanism for locking the relative position of the first bottom plate, the locking mechanism It includes a locking lever, which is slidably arranged on the second bottom plate in the left and right directions. When the locking mechanism is in the locked state, the locking lever directly or indirectly cooperates with the first bottom plate. When the locking mechanism is in an unlocked state, the locking rod is disengaged from the first bottom plate. Before the operation starts, the front and rear positions of the first bottom plate can be adjusted through the manual fine-tuning mechanism, thereby adjusting the positions of the catheter and the protective sleeve, so as to facilitate the operation of the catheter by the doctor during the operation.

Further, the manual fine-tuning mechanism also includes a scale bar fixedly arranged on the first bottom plate and extending along the sliding direction of the first bottom plate, and a plurality of locks are arranged at intervals along the extending direction of the scale bar one end of the locking rod can be inserted into the locking slot or disengaged from the locking slot. The position of the first bottom plate on the second bottom plate can be visually observed through the scale bar, so as to facilitate manual adjustment.

Further, the manual fine-tuning mechanism further includes an elastic member for driving the locking lever to automatically slide in a direction in which the locking lever directly or indirectly cooperates with the first bottom plate.

Further, the manual fine-tuning mechanism further includes a support assembly supported between the first bottom plate and the second bottom plate, and the support assembly includes a plurality of support universal balls arranged at intervals. The setting of the supporting universal ball provides supporting force and improves the stability of the whole device, and at the same time, the resistance when the first bottom plate is manually driven to slide relative to the second bottom plate is small.

Furthermore, the manual fine-tuning mechanism also includes a fourth guide mechanism for guiding the forward and backward movement of the first bottom plate, and the fourth guide mechanism includes a The third guide rail and the third slide block slidably arranged on the third guide rail along the length extension direction of the third guide rail, the third slide block is fixedly arranged on the bottom of the first bottom plate. The forward and backward movement of the first bottom plate, that is, the conduit and the protective sleeve can be guided by the setting of the fourth guide mechanism.

Further, the manual fine-tuning mechanism also includes a second limit mechanism for limiting the forward and backward movement of the first bottom plate, and the second limit mechanism includes The second limiting blocks at the front and rear ends are all located on the sliding path of the first bottom plate to block the sliding of the first bottom plate. The setting of the second limit block can prevent the first bottom plate from sliding out of the third guide rail.

The present invention also provides a catheter control method for vascular interventional surgery, using the control device as described in any one of the above to control the movement of the catheter and the protective sleeve, when the catheter moves forward, the protective sleeve The tube moves backward; when the guide tube moves backward, the protective sleeve moves forward, and the guide tube and the protective sleeve move the same stroke.

Due to the application of the above-mentioned technical scheme, the catheter control device for vascular interventional surgery of the present invention has the following advantages compared with the prior art: the catheter control device for vascular interventional surgery controls the forward movement of the catheter, so that the length of the catheter inserted into the blood vessel of the human body is increased. , the length of the part of the body exposed to the front of the catheter is correspondingly reduced, and the control device can simultaneously control the backward movement of the protective sleeve, thereby protecting the part of the length of the body exposed to the front of the catheter; When the catheter moves backward, the length of the catheter inserted into the human blood vessel decreases, and the length of the part exposed to the human blood vessel at the front of the catheter increases accordingly. part of the length is protected. In this way, the protective sleeve can move adaptively following the movement of the catheter, thereby effectively protecting the catheter and avoiding contamination of the catheter.

Description of drawings

Accompanying drawing 1 is one of three-dimensional schematic diagrams of the catheter control device for vascular interventional surgery of the present embodiment;

Accompanying drawing 2 is the second perspective view of the catheter control device for vascular interventional surgery of the present embodiment;

Accompanying drawing 3 is the three-dimensional schematic diagram of the catheter control device for vascular interventional surgery of the present embodiment;

Accompanying drawing 4 is the schematic front view of the catheter control device for vascular interventional surgery of this embodiment;

Accompanying drawing 5 is the schematic top view of the catheter control device for vascular interventional surgery of this embodiment;

Accompanying drawing 6 is the schematic side view of the catheter control device for vascular interventional surgery of this embodiment;

Accompanying drawing 7 is the partially enlarged schematic diagram of place A in accompanying drawing 6;

Accompanying drawing 8 is a schematic diagram of the internal structure corresponding to B in the accompanying drawing 6;

Accompanying drawing 9 is the exploded schematic view of the catheter control device for vascular interventional surgery in this embodiment after removing the manual fine-tuning mechanism;

Accompanying drawing 10 is the three-dimensional schematic view of the manual fine-tuning mechanism of the catheter control device for vascular interventional surgery in this embodiment;

Figure 11 is a schematic top view of the manual fine-tuning mechanism of the catheter control device for vascular interventional surgery in this embodiment;

Figure 12 is a schematic side view of the manual fine-tuning mechanism of the catheter control device for vascular interventional surgery in this embodiment;

Figure 13 is an exploded schematic diagram of the manual fine-tuning mechanism of the catheter control device for vascular interventional surgery in this embodiment.

Among them: 1, the first bottom plate; 21, the gear; 22, the first rack; 23, the second rack; 24, the first bevel gear; 241, the gear shaft; 25, the second bevel gear; 26, the motor; 3 , clamping mechanism; 31, clamping seat; 311, clamping part; 311a, through hole; 32, operating part; 33, locking part; 331, first locking part; 34, connecting part; 35, first shaft ; 36, the second shaft; 37, the third shaft; 4, the bracket; 5, the first guide mechanism; 51, the guide groove; 52, the opening; 6, the opening mechanism;

62. Support claw; 71. The first guide rail; 72. The first slider; 73. The second guide rail; 74. The second slider;

81. First limit block; 82. Limit switch; 83. Inductor; 91. Second base plate; 911. Fixing seat; 92. Locking rod; 921. Second locking part; 922. Handle; 93. Scale bar 931, lock groove; 94, elastic member; 95, support universal ball; 961, the third guide rail; 962, the third slide block; 97, the second limit block;

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, the directions such as "front", "rear", "left", "right", "upper" and "lower" involved are all shown in Figure 4, the left direction in the figure is "front", the right direction in the figure is "rear", the upper direction in the figure is "up", the lower direction in the figure is "down", and the direction perpendicular to the viewing angle in the figure is "left" and "Right", the definition of the above direction is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be interpreted as Invention Limitations.

Advancement of the catheter 100 is a key step in the vascular interventional operation. The front part of the catheter 100 includes an insertion part 101 inserted into the blood vessel and an exposed part 102 sequentially connected with the insertion part 101 to expose the blood vessel. The insertion part 101 and the exposed part The length of the catheter 102 changes according to the insertion depth of the catheter 100 into the blood vessel of the human body. That is, when the length of the insertion part 101 increases, the length of the bare drain part 102 decreases; when the length of the insertion part 101 decreases, the length of the bare drain part 102 increases. The front part of the protective sleeve 200 is sheathed on the outside of the bare leak 102 to protect the bare leak 102 and prevent the bare leak 102 from being polluted.

As shown in FIGS. 1 to 6 and 9 , the catheter control device for vascular interventional surgery of the present invention includes a first base plate 1 and a driving mechanism arranged on the first base plate 1 .

Both the guide tube 100 and the protective sleeve 200 are arranged on the first bottom plate 1 so as to be able to move back and forth. The cannula 200 can follow the movement of the catheter 100 .

As shown in FIGS. 4 and 9 , the driving mechanism includes a gear 21 , a first rack 22 and a second rack 23 . The gear 21 is rotatably provided on the first bottom plate 1 . Both the first rack 22 and the second rack 23 extend along the front-to-rear direction, the first rack 22 and the second rack 23 are meshed with the gear 21 , and are respectively disposed on opposite sides of the gear 21 . In this way, when the gear 21 rotates, the first rack 22 and the second rack 23 can be driven to move forward or backward in opposite directions respectively, and when the first rack 22 moves back and forth, the protective sleeve 200 is driven to move back and forth synchronously. , when the second rack 23 moves back and forth, it drives the catheter 100 to move back and forth synchronously, so that the catheter 100 and the protective sleeve 200 can move oppositely at the same time, and the strokes of the two movements are the same.

As shown in FIGS. 5 and 9 , the driving mechanism further includes a first bevel gear 24 , a second bevel gear 25 and a motor 26 . Both the first bevel gear 24 and the second bevel gear 25 are rotatably arranged on the first bottom plate 1 , and the motor 26 is arranged on the first bottom plate 1 . The gear 21 is fixedly arranged on the gear shaft 241 of the first bevel gear 24 , the second bevel gear 25 is fixedly arranged coaxially with the motor shaft of the motor 26 , and the first bevel gear 24 meshes with the second bevel gear 25 . When the motor 26 starts, it drives the second bevel gear 25 to rotate, and the meshing between the first bevel gear 24 and the second bevel gear 25 makes the first bevel gear 24 rotate, thereby driving the gear 21 to rotate.

Specifically, as shown in FIGS. 1 to 3 and 9 , the control device further includes a clamping mechanism 3 for clamping the protective sleeve 200 , and the clamping mechanism 3 is fixedly arranged on the first rack 22 . When the first rack 22 moves back and forth, it drives the clamping mechanism 3 to move back and forth synchronously, so that the protective sleeve 200 is clamped by the clamping mechanism 3 to move back and forth.

As shown in FIGS. 8 and 9 , the clamping mechanism 3 includes a clamping seat 31 on which a clamping portion 311 is provided, and the clamping portion 311 has a through hole 311a passing through its front and rear ends, and the protective sleeve 200 penetrated in the through hole 311a.

The clamping mechanism 3 also includes a link mechanism. When the protective sleeve 200 is passed through the through hole 311a, the protective sleeve 200 can be fixed in the through hole 311a through the link mechanism, thereby driving the protection through the clamping mechanism. The cannula 200 moves back and forth synchronously.

The link mechanism includes an operating piece 32 , a locking piece 33 and a connecting piece 34 . The operating member 32 is rotatably arranged on the clamping seat 31 through the first shaft 35, and the locking member 33 is arranged on the clamping seat 31 so as to be slidable in the left and right directions. One end of the connecting member 34 and one end of the operating member 32 pass through The second shaft 36 is rotatably connected, and the other end of the connecting member 34 is rotatably connected to one end of the locking member 33 through a third shaft 37 . The other end of the locking member 33 is provided with a first locking portion 331. When the locking member 33 slides relative to the clamping seat 31, the first locking portion 331 can extend into the through hole 311a of the clamping portion 311 to resist A protective sleeve 200 is provided to fix the protective sleeve 200 in the through hole 311a. When the locking member 33 slides backwards relative to the clamping seat 31 , the first locking portion 331 can escape from the through hole 311 a of the clamping portion 311 , thereby releasing the protective sleeve 200 . When the operation member 32 rotates relative to the clamping seat 31 , the locking member 33 can be driven to slide relative to the clamping seat 31 through the connecting member 34 .

In this embodiment, the clamping seat 31 has an accommodating cavity, and the partial structure of the operating member 32 , the locking member 33 and the connecting member 34 are all located in the accommodating cavity, which makes the overall appearance of the clamping mechanism 3 neat and beautiful. Part of the operating member 32 protrudes out of the accommodating chamber for manual operation to clamp or loosen the protective sleeve 200 .

As shown in Figures 1 to 6 and Figure 9, the control device also includes a bracket 4 and a first guide mechanism 5, the first guide mechanism 5 is used to guide the forward and backward movement of the protective sleeve 200, and the first guide mechanism 5 is fixedly arranged on bracket 4. The guide tube 100 is arranged on the first guide mechanism 5 , and the second rack 23 is fixedly arranged on the bracket 4 . When the second rack 23 moves back and forth, it drives the first guide mechanism 5 to move back and forth synchronously, so that the first guide mechanism 5 drives the catheter 100 to move back and forth.

The first guide mechanism 5 has a guide groove 51 extending in the front-rear direction. The guide groove 51 matches the clamping part 311. The clamping part 311 clamps the protective sleeve 200 and is located in the guide groove 51. The front end of the protective sleeve 200 extends Go out to the outside of the first guide mechanism 5 to protect the exposed leaking part 102 of the catheter 100 . When the gear 21 drives the first rack 22 and the second rack 23 to move in opposite directions, the clamping part 311 clamps the protective sleeve 200 and slides relative to the guide groove 51 along the length extension direction of the guide groove 51, thereby realizing protection. Guidance of the sleeve 200 .

In this embodiment, the protective sleeve 200 is cut along a generatrix. When the protective sleeve 200 is in a natural state, the protective sleeve 200 shrinks under the action of its own elastic force to assume a circular closed state. When the protective sleeve 200 is subjected to external force, it can be deployed to both sides of the busbar and be in an open state.

When the protective sleeve 200 is in the first guiding mechanism 5, the protective sleeve 200 is in a closed state. The front part of the first guide mechanism 5 is provided with an opening mechanism 6. When the protective sleeve 200 moves back and forth through the opening mechanism 6, the protective sleeve 200 can be converted from a closed state to an open state. At this time, the catheter 100 can be inserted into the lumen of the protective sheath 200, so that when the protective sheath 200 leaves the opening mechanism 6 and closes again, the catheter 100 can be wrapped in its lumen, thereby protecting the catheter 100.

As shown in FIG. 6 and FIG. 7 , the mouth opening mechanism 6 includes a base body 61 and a supporting claw 62 arranged on the base body 61 . The seat body 61 is provided with an accommodating groove 611, the accommodating groove 611 is used to place the protective sleeve 200, the position of the accommodating groove 611 corresponds to the position of the guide groove 51 of the first guide mechanism 5, so that the protective sleeve 200 The accommodating groove 611 can smoothly enter into the guide groove 51 and slide along the guide groove 51 . The supporting claw 62 can extend into the lumen of the protective sleeve 200 from the incision position of the protective sleeve 200 , so that the protective sleeve 200 is in an open state.

One supporting claw 62 may be provided, and at this time, the length of the supporting claw 62 extending into the lumen of the protective sleeve 200 needs to avoid the catheter 100 .

Preferably there are two supporting claws 62, and the two supporting claws 62 are arranged at intervals along the left and right directions, and the distance between the two supporting claws 62 is not less than the outer diameter of the conduit 100, and the conduit 100 can be opened from between the two supporting claws 62. Extends into the lumen of the protective sheath 200 in the interval. In this way, the length of the support claw 62 extending into the lumen of the protective sleeve 200 can be increased, thereby increasing the degree of opening of the protective sleeve 200 , making it easier for the catheter 100 to extend into the lumen of the protective sleeve 200 .

The front portion of the first guide mechanism 5 is provided with an opening 52 for the catheter 100 to be inserted into the guide groove 51 near the position of the mouth opening mechanism 6, and the catheter 100 enters the guide groove 51 of the first guide mechanism 6 from the opening 52 position, near the mouth opening At the position of the mechanism 6, the protective sleeve 200 is in an open state, so that the catheter 100 can be inserted into the lumen of the protective sleeve 200. When the front part of the protective sleeve 200 stretches out from the opening mechanism 6, the protective sleeve The tube 200 can self-shrink into a circular shape, thereby wrapping the catheter 100 therein and protecting it.

As shown in FIG. 6 , the control device further includes a second guide mechanism for guiding the forward and backward movement of the first rack 22 . The second guide mechanism includes a first guide rail 71 fixedly arranged on the first bottom plate 1 and extending in the front-rear direction, and a first slider 72 slidably arranged on the first guide rail 71 along the length extension direction of the first guide rail 71 , The first slider 72 is fixed on the first rack 22 .

As shown in FIG. 6 , the control device further includes a third guiding mechanism for guiding the forward and backward movement of the second rack 23 . The third guide mechanism includes a second guide rail 73 fixedly arranged on the first bottom plate 1 and extending in the front-rear direction, and a second slide block 74 slidably arranged on the second guide rail 73 along the length extension direction of the second guide rail 73 , The second slider 74 is fixedly arranged on the bracket 4 .

The control device also includes a first limiting mechanism, which is used to limit the forward and backward movement of the catheter 100 . After the forward and backward movement position of the catheter 100 is limited by the first limiting mechanism, the forward and backward movement position of the protective sleeve 200 is also limited.

As shown in Figures 1 to 3, the first limiting mechanism includes a first limiting block 81, and the first limiting block 81 is respectively arranged at the front and rear ends of the first bottom plate 1, and the first limiting blocks 81 at the front and rear ends All are located on the sliding path of the bracket 4, so as to block the sliding of the bracket 4, so as to prevent the bracket 4 from sliding out of the second guide rail 73. When the bracket 4 drives the first guiding mechanism 5 and the guide tube 100 to slide forward or backward to the first limit block 81, the bracket 4 cannot drive the first guiding mechanism 5 and the guide tube 100 to continue sliding along the current direction, only Can slide backwards.

The control device also includes a controller, and the controller is electrically connected with the motor 26 . As shown in FIGS. 1 to 3 , the first limit mechanism further includes a limit switch 82 and an inductor 83 used in cooperation with each other. The limit switches 82 are respectively arranged at the front and rear ends of the first bottom plate 1 , the inductor 83 is arranged on the bracket 4 , and the limit switches 82 are electrically connected with the controller. When the bracket 4 drives the first guiding mechanism 5 and the catheter 100 to slide forward or backward to make the sensor 83 enter the sensing range of the limit switch 82, the limit switch 82 sends a signal to the controller, and the controller immediately The operation of the motor 26 is controlled, thereby controlling the rotation of the gear 21 , and further controlling the forward and backward movement of the first rack 22 and the second rack 23 .

As shown in Figures 1 to 3, the control device also includes a manual fine-tuning mechanism 9, which can be used to fine-tune the position of the first bottom plate 1 back and forth through the manual fine-tuning mechanism 9 at the beginning of the vascular interventional operation, thereby adjusting the position of the catheter 100 to facilitate the operation The physician operates catheter 100 during the procedure.

In this embodiment, the catheter 100 and the protective sleeve 200 can be manually driven to move forward or backward synchronously through the manual fine-tuning mechanism 9 .

As shown in Figures 10 to 13, the manual fine-tuning mechanism 9 includes a second bottom plate 91 located below the first bottom plate 1, and the first bottom plate 1 can be slidably arranged on the second bottom plate 91 in the front and rear direction, and the first bottom plate is driven manually 1 moves forward or backward relative to the second bottom plate 91, thereby driving the conduit 100 and the protective sleeve 200 disposed on the first bottom plate 1 to move forward or backward synchronously.

The manual fine-tuning mechanism 9 also includes a locking mechanism, through which the position of the first bottom plate 1 on the second bottom plate 91 is locked. The locking mechanism includes a locking lever 92 provided on the second bottom plate 91 so as to be slidable in the left-right direction. When the locking mechanism is in the locked state, the locking rod 92 directly or indirectly cooperates with the first bottom plate 1 so that the first bottom plate 1 cannot slide relative to the second bottom plate 91 . When the locking mechanism is in the unlocked state, the locking rod 92 is disengaged from the first base plate 1, and at this time, the first base plate 1 can be manually driven to slide relative to the second base plate 91, thereby fine-tuning the position of the catheter 100, which is convenient for the doctor to adjust the catheter 100 during operation. operate.

In this embodiment, a fixing seat 911 is fixedly arranged on the second bottom plate 91 , and a chute extending along the left and right direction is arranged in the fixing seat 911 , and one end of the locking rod 92 passes through the chute to abut against the first bottom plate 1 .

The manual fine-tuning mechanism 9 also includes a scale bar 93, the scale bar 93 is fixedly arranged on the first base plate 1, and it extends along the sliding direction of the first base plate 1, and the front and rear positions of the first base plate 1 can be visually observed through the scale bar 93 . The scale bar 93 is provided with a plurality of locking grooves 931 at intervals along its length extending direction, and one end of the locking rod 92 is provided with a second locking portion 921 . When the locking mechanism is in a locked state, the second locking portion 921 is inserted into the locking slot 931 ; when the locking mechanism is in an unlocked state, the second locking portion 921 is disengaged from the locking slot 931 . In this embodiment, a plurality of locking grooves 931 are arranged at intervals along the extending direction of the length of the scale bar 93 , so that the first bottom plate 1 can be locked at different positions by a locking mechanism.

The manual fine-tuning mechanism further includes an elastic member 94 , and the elastic force of the elastic member 94 is used to drive the locking rod 92 to automatically slide in the direction of inserting the second locking portion 921 into the locking slot 931 . In this embodiment, one end of the elastic member 94 is disposed on the locking rod 92 , and the other end of the elastic member 94 is disposed on the fixing seat 911 .

The other end of the locking lever 92 is also provided with a handle 922, so as to facilitate manual operation of the locking lever 92 to unlock the locking mechanism.

The manual fine-tuning mechanism 9 also includes a support assembly, which is supported between the first bottom plate 1 and the second bottom plate 91 . In this embodiment, the supporting assembly includes a plurality of supporting universal balls 95 arranged at intervals, so that the first bottom plate 1 can be supported by the supporting universal balls 95, thereby improving stability. Moreover, when the first bottom plate 1 is manually driven to slide relative to the second bottom plate 91 , the frictional resistance between the two can be reduced, saving time and effort.

The manual fine-tuning mechanism 9 also includes a fourth guiding mechanism, which is used to guide the forward and backward movement of the first bottom plate 1 . The fourth guide mechanism includes a third guide rail 961 fixedly arranged on the second bottom plate 91 and extending along the front-rear direction, and a third slider 962 slidably arranged on the third guide rail 961 along the length extension direction of the third guide rail 961 , The third sliding block 962 is fixedly arranged on the bottom of the first bottom plate 1 . In this embodiment, multiple sets of fourth guide mechanisms are arranged at intervals along the left and right directions.

The manual fine-tuning mechanism 9 also includes a second limiting mechanism, which is used to limit the forward and backward movement of the first bottom plate 1 .

As shown in Figure 10, the second limiting mechanism includes a second limiting block 97, and the second limiting block 97 is respectively arranged at the front and rear ends of the second base plate 91, and the second limiting blocks 97 at the front and rear ends are all located at the first on the sliding path of a bottom plate 1 , thereby blocking the sliding of the first bottom plate 1 , so as to prevent the first bottom plate 1 from sliding out of the third guide rail 961 . When the first bottom plate 1 drives the conduit 100 and the protective sleeve 200 disposed thereon to slide forward or backward to abut against the second stopper 97, the first bottom plate 1 cannot drive the conduit 100 and the protective sleeve 200 Continue swiping in the current direction, only in the opposite direction.

The working principle of the control device is as follows:

Before the operation starts, adjust the front and rear positions of the first bottom plate 1 through the manual fine-tuning mechanism 9. The specific adjustment method is: pull the locking lever 92 to make the second locking part 921 escape from the locking groove 931, the locking mechanism is unlocked, and the second locking part is manually driven. One bottom plate 1 slides to a proper position relative to the second bottom plate 91, the locking lever 92 is released, and the position of the first bottom plate 1 is locked by the locking mechanism.

During the operation, when the catheter 100 needs to be inserted into the human blood vessel or the length of the inserted human blood vessel needs to be increased, the controller controls the motor 26 to start, driving the gear 21 to rotate clockwise relative to the first bottom plate 1, and through the engagement of the gear 21 and the second rack 23 Driving the second rack 23 to move forward drives the first guide mechanism 5 to move forward, so that the catheter 200 moves forward synchronously, so that the length of the exposed drain portion 102 on the catheter 100 gradually decreases. During the clockwise rotation of the gear 21 relative to the first bottom plate 1, the engagement of the gear 21 and the first rack 22 drives the first rack 22 to move backward, driving the clamping mechanism 3 to move backward, so that the protective sleeve 200 is synchronized Move backward, so that the length of the protective sleeve 200 protruding from the opening mechanism 6 is reduced, and matches the length of the exposed leaking part 102 . Conversely, when the length of the catheter 100 inserted into the blood vessel of the human body needs to be reduced, the controller controls the motor 26 to start, driving the gear 21 to rotate counterclockwise relative to the first bottom plate 1, and the second rack 23 is driven by the engagement of the gear 21 and the second rack 23 The backward movement drives the first guiding mechanism 5 to move backward, so that the catheter 200 moves backward synchronously, so that the length of the exposed drain portion 102 on the catheter 100 gradually increases. During the counterclockwise rotation of the gear 21 relative to the first bottom plate 1, the engagement of the gear 21 and the first rack 22 drives the first rack 22 to move forward, driving the clamping mechanism 3 to move forward, so that the protective sleeve 200 is synchronized Moving forward, so that the length of the protective sleeve 200 protruding from the opening mechanism 6 increases and matches the length of the exposed leaking part 102 . In this way, the protection sleeve 200 can be followed to protect the catheter 100 in real time.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (20)

1. A catheter control device for vascular interventional operations, comprising a first base plate, on which the catheter can move back and forth, the front portion of the catheter includes an insertion portion inserted into a blood vessel and a sequence with the insertion portion The exposed leaking part of the exposed blood vessel is characterized in that the control device also includes a protective sleeve that can be sleeved on the outside of the exposed leaking part to protect the exposed leaking part, and the protective sleeve can It is arranged on the first bottom plate to move back and forth, and the control device further includes a driving mechanism arranged on the first bottom plate, and the driving mechanism is used to drive the guide tube and the protective sleeve to the opposite direction simultaneously. The direction moves relative to the first bottom plate, and the guide tube and the protection sleeve move in the same stroke. 2. The catheter control device for vascular intervention according to claim 1, characterized in that: the driving mechanism includes a gear rotatably arranged on the first base plate, meshed with the gear to drive the The first rack that moves the protective sleeve back and forth and the second rack that engages with the gear to drive the catheter to move forward and backward, both the first rack and the second rack extend along the front and rear direction, so The first rack and the second rack are respectively arranged on opposite sides of the gear. 3. The catheter control device for vascular intervention according to claim 2, characterized in that: the control device further comprises a clamping mechanism for clamping the protective sleeve and a clamping mechanism for clamping the protective sleeve. The first guide mechanism that moves back and forth for guidance, the clamping mechanism is fixedly arranged on the first rack, the guide tube is arranged on the first guide mechanism, and the second rack is fixed on the on the first guide. 4. The catheter control device for vascular interventional surgery according to claim 3, wherein the clamping mechanism has a clamping portion for clamping the protective sleeve, and the first guide mechanism has a And a guide groove matched with the clamping part, the clamping part protrudes into the guide groove and is set so as to be slidable relative to the guide groove along the length extension direction of the guide groove. 5. The catheter control device for vascular interventional surgery according to claim 3, characterized in that: the protective sleeve is cut along a generatrix, the protective sleeve has a closed state contracted to a circular shape and a direction toward the generatrix. In the open state where the two sides are deployed, the front part of the first guide mechanism is provided with an opening mechanism to make the protective sleeve in the open state so that the catheter can be inserted into the protective sleeve. 6. The catheter control device for vascular intervention according to claim 5, characterized in that: the mouth opening mechanism includes a base for placing the protective sleeve and a supporting claw arranged on the base, so that The supporting claw can extend into the lumen of the protective sleeve from the incision position of the protective sleeve to expand the protective sleeve. 7. The catheter control device for vascular interventional operations according to claim 6, wherein there are two supporting claws, and the two supporting claws are arranged at intervals along the left and right directions, and there is a gap between the two supporting claws. The separation distance is not less than the outer diameter of the catheter. 8. The catheter control device for vascular interventional operations according to claim 6, characterized in that: the front part of the seat is provided with an accommodating groove for placing the protective sleeve, and the first guide mechanism has The guide groove extending in the direction, the position of the accommodating groove corresponds to the position of the guide groove, and an opening for the catheter to be inserted into the guide groove is provided at a position close to the opening mechanism at the front of the first guide mechanism . 9. The catheter control device for vascular intervention according to claim 3, characterized in that: the clamping mechanism comprises a clamping seat, and the clamping seat is provided with a clamp for clamping the protective sleeve. part, the clamping mechanism also includes a link mechanism movably arranged on the clamping seat to clamp the protective sleeve in the clamping part, and the link mechanism includes a link mechanism rotatably arranged on The operating piece on the clamping seat, the locking piece slidably arranged on the clamping seat, and the connecting piece with one end rotatably connected to the operating piece, the other end of the connecting piece is connected to the The locking part is rotatably connected, and the locking part can slide into the clamping part relative to the clamping seat to clamp the protective sleeve, or get out of the clamping part to loosen the protective tube. casing. 10. The catheter control device for vascular interventional surgery according to claim 2, characterized in that: the driving mechanism further comprises a first bevel gear, a second bevel gear and a motor, and the first bevel gear is the same as the gear The shaft is fixedly arranged, the second bevel gear is fixedly arranged coaxially with the motor shaft of the motor, and the first bevel gear meshes with the second bevel gear. 11. The catheter control device for vascular interventional surgery according to claim 2, characterized in that: the control device further comprises a second guide mechanism for guiding the forward and backward movement of the first rack, the first rack The second guide mechanism includes a first guide rail fixedly arranged on the first bottom plate and extending along the front-to-rear direction, and a first slider slidably arranged on the first guide rail along the length extension direction of the first guide rail, The first slider is fixedly arranged on the first rack, and the control device further includes a third guide mechanism for guiding the forward and backward movement of the second rack, and the third guide mechanism includes a second guide rail fixedly arranged on the first bottom plate and extending along the front-to-rear direction and a second sliding block slidably arranged on the second guide rail along the length extension direction of the second guide rail The slider is fixedly arranged on the bracket, and the second rack is fixedly arranged on the bracket. 12. The catheter control device for vascular intervention according to claim 1, characterized in that: the control device further comprises a first limiting mechanism for limiting the forward and backward movement of the catheter, and the first The limit mechanism includes first limit blocks respectively arranged on the front and rear ends of the first bottom plate, the guide tube is arranged on the first bottom plate by sliding back and forth through the bracket, and the first limit blocks on the front and rear ends are both Located on the sliding path of the bracket to block the sliding of the bracket. 13. The catheter control device for vascular intervention according to claim 12, characterized in that: the control device further comprises a controller, and the first limit mechanism further comprises The limit switch at the end and the sensor arranged on the support to cooperate with the limit switch, the limit switch is electrically connected with the controller. 14. The catheter control device for vascular interventional operations according to claim 1, wherein the control device further includes a manual for manually driving the catheter and the protective sleeve to move forward or backward synchronously. A fine-tuning mechanism, the manual fine-tuning mechanism includes a second bottom plate located below the first bottom plate, the first bottom plate can be slidably arranged on the second bottom plate in the front-rear direction, and the manual fine-tuning mechanism also includes a a locking mechanism for locking the relative position of the first bottom plate, the locking mechanism includes a locking lever, and the locking lever is slidably arranged on the second bottom plate in the left and right direction, when the locking mechanism is in the locked state , the locking rod directly or indirectly cooperates with the first bottom plate, and when the locking mechanism is in an unlocked state, the locking rod is disengaged from the first bottom plate. 15. The catheter control device for vascular interventional operations according to claim 14, wherein the manual fine-tuning mechanism further includes a scale fixed on the first bottom plate and extending along the sliding direction of the first bottom plate The scale bar is provided with a plurality of lock slots at intervals along its length extension direction, and one end of the lock rod can be inserted into the lock slot or disengaged from the lock slot. 16. The catheter control device for vascular interventional operations according to claim 14, wherein the manual fine-tuning mechanism further includes a function for driving the locking lever to automatically make the locking lever directly or directly to the first bottom plate. An elastic member that slides in the direction of an indirect fit. 17. The catheter control device for vascular intervention according to claim 14, wherein the manual fine-tuning mechanism further comprises a support assembly supported between the first base plate and the second base plate, the support assembly The assembly includes a plurality of supporting universal balls arranged at intervals. 18. The catheter control device for vascular interventional surgery according to claim 14, wherein the manual fine-tuning mechanism further comprises a fourth guiding mechanism for guiding the forward and backward movement of the first bottom plate, and the first bottom plate The four-guiding mechanism includes a third guide rail fixedly arranged on the second bottom plate and extending in the front-to-rear direction, and a third slide block slidably arranged on the third guide rail along the length extension direction of the third guide rail, The third slider is fixedly arranged on the bottom of the first bottom plate. 19. The catheter control device for vascular interventional surgery according to claim 14, characterized in that: the manual fine-tuning mechanism further includes a second limiting mechanism for limiting the forward and backward movement of the first bottom plate, so The second limiting mechanism includes second limiting blocks respectively arranged at the front and rear ends of the second bottom plate, and the second limiting blocks at the front and rear ends are all located on the sliding path of the first bottom plate to control the first bottom plate. The sliding of a bottom plate is blocked. 20. A catheter control method for vascular intervention, characterized in that: the control device according to any one of claims 1 to 19 is used to control the movement of the catheter and the protective sleeve, and the catheter moves forward When moving, the protection sleeve moves backward; when the guide tube moves backward, the protection sleeve moves forward, and the guide tube and the protection sleeve move the same stroke.

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