WO2018133405A1 - Endoscope lens mount and endoscope - Google Patents

Abstract

An endoscope lens mount and an endoscope. The endoscope lens mount comprises a support (100), a tong lifter (200), and a steel wire (300). The support (100) is provided with an instrument channel (101) and a steel wire channel (106); the steel wire (300) is provided inside the steel wire channel (106), and an end portion of the steel wire (300) is connected to the tong lifter (200); a front cover (500) is further provided and detachably connected to the support (100), and when connected to the support (100), the front cover (500) can at least cover the steel wire (300) and the outlet of the steel wire channel (106).

Description

Endoscope head and endoscope

The present application claims priority to Chinese Patent Application No. 201010044505.1, entitled "Endoscope Headstock and Endoscope", filed on January 19, 2017, the entire contents of which are incorporated herein by reference. In this application.

Technical field

The present invention relates to the field of medical devices, and more particularly to a headstock for guiding a surgical instrument on an endoscope and an endoscope to which the headstock is applied.

Background technique

With the development of technology, endoscopes are increasingly used in the diagnosis and treatment of diseases. The endoscope has a head seat that protrudes into the interior of the human body and functions to guide the surgical instrument and the camera. In some endoscopes, in order to dispose the desired position in the subject, it is necessary to change the direction of the surgical instrument at the endoscope head. Currently, such mainstream endoscopes include a support, a lifter and a wire rope. The seat is provided with an instrument passage for the surgical instrument to pass through, and the lifting clamp is placed at the outlet of the instrument passage, and is connected to the support through a rotating shaft, and the lift clamp rotates around the rotating shaft under the driving of the wire rope, thereby lifting the surgical instrument The head base further includes a front end cover fixedly attached to the support. The front end cover seals the components in the head base, the instrument passage and the wire rope passage are exposed, and the instrument passage and the wire rope passage are separately cleaned and disinfected after use. However, this structure has a defect: since the exit of the wire rope passage is in communication with the outlet of the instrument passage, the problem of the wire rope winding the surgical instrument is easily caused at the exit, which brings inconvenience to the actual use.

In order to solve the above problems, there is also an endoscope in which the outlet of the wire rope passage on the head seat is separated from the outlet of the instrument passage by a partition wall, and the partition wall is provided with a through hole, and a connecting shaft passes through the through hole. The hole and the two ends are respectively connected with the lifting clamp and the wire rope, so as to avoid the wire rope winding the surgical instrument. In addition, in order to prevent body fluid, disinfectant, etc. from entering the wire rope passage through the instrument passage, the connecting shaft and the partition wall are sealed by a sealing ring, and the head base further comprises a front end cover fixedly connected to the support, the front end cover will be inside the head seat The component is sealed and the front end cap is combined with the sealing ring to form a gas-tight isolation of the wire rope channel from the instrument channel. After use, it is only necessary to clean and disinfect the instrument channel. The wire rope channel is isolated by airtightness and is not exposed to external body fluids. Therefore, cleaning and disinfection are not required, which simplifies the cleaning and disinfecting operation. However, as the use time increases, the seal ring is prone to seal failure due to wear and aging, which not only fails to function as a seal, but also allows body fluids and disinfectants to enter the wire rope passage, resulting in incomplete disinfection. Contamination leads to the early retirement of the headstock, so there is an urgent need for an endoscope that can avoid the wire rope winding device and thoroughly disinfect.

Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention provides an endoscope head and an endoscope to which the endoscope head is applied.

The technical solution adopted by the present invention to solve the technical problem thereof is:

An endoscope head seat comprises a support, a lifting clamp and a wire rope, wherein the support is provided with an instrument passage and a wire rope passage, the wire rope is located in the wire rope passage, the end portion is connected with the lift clamp, and further comprises a front end cover and a front end The cover is detachably attached to the support, and the front cover covers at least the wire rope and the outlet of the wire rope passage when the front end cover is coupled to the support.

As a further improvement of the above solution, the front end cover realizes switching between the locked connection state and the unlocked separated state of the support by the movement of the opposite support.

As a further improvement of the above solution, the support is provided with a hook, the front cover is provided with a first hole through which the hook passes, and the first hook for the hook to pass through the front cover and then hooked to the front cover Two holes.

As a further improvement of the above aspect, the holes are distributed in the circumferential direction of the rotation circumference of the front end cover.

As a further improvement of the above solution, the front end cover is provided with a notch, and a stopper is protruded from one side of the notch, and the stopper divides the notch into the first hole and the second hole.

As a further improvement of the above solution, the hook includes a hooking portion and a resisting portion, and the hooking portion is hooked with the second hole. After the hooking portion is hooked with the second hole, the resisting portion abuts against the stopper to limit the front end cover. Movement in the direction opposite to the hooking direction.

As a further improvement of the above solution, the notch includes a fan-shaped notch, and the stopper is disposed on the arc side of the notch.

As a further improvement of the above solution, the front end cover is movable relative to the support in the radial direction of the support, and the first hole and the second hole are distributed along the moving path of the front end cover.

As a further improvement of the above solution, the elastic sheath is sleeved on the outer side of the front end cover, and the elastic sheath is elastically deformed by the hook when the hook passes through the side wall. Further, the front end cover is biased against the hooking direction of the hook.

As a further improvement of the above solution, the wire rope channel and the instrument channel are arranged on two sides of a partition wall, and the partition wall is provided with a through hole, and a crankshaft is inserted into the through hole, and the two ends of the crankshaft are respectively connected with the lifting clamp, Wire rope connection.

An endoscope comprising the above described endoscope head.

The beneficial effects of the invention are:

The front end cover can close the wire rope and the wire rope passage, avoiding the body fluid directly entering the wire rope passage, and rinsing the wire rope passage by disassembling the front end cover, thereby eliminating the disinfection dead angle; no additional sealing ring is needed at the rotating shaft, so there is no existing The problem of seal failure due to wear of the seal ring; the quick disassembly and assembly of the front end cover can be realized, which helps save time and improve efficiency.

DRAWINGS

The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a perspective view of a first embodiment of an endoscope head according to the present invention;

2 is a perspective view of the head stand display hook of the present invention;

Figure 3 is an exploded perspective view of the lift clamp and the crankshaft of the present invention;

Figure 4 is a perspective view showing an embodiment of the front end cover of the present invention;

Figure 5 is a schematic view of the front end cover of the present invention before being connected to the support;

Figure 6 is a schematic view showing the connection of the front end cover and the support of the present invention;

Figure 7 is a schematic view of the front end cover of the present invention after being connected to the support;

Figure 8 is an exploded perspective view of the front end cover and the elastic sheath of the present invention;

Figure 9 is a cross-sectional view showing the front end cover, the elastic sheath of the present invention and the support.

detailed description

The concept, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings. Need It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It should be noted that, unless otherwise stated, when a feature is referred to as “fixed” or “connected” in another feature, it may be directly fixed, connected to another feature, or indirectly fixed and connected to another feature. A feature. Further, the descriptions of the upper, lower, left, right, and the like used in the present invention are merely relative to the mutual positional relationship of the respective components of the present invention in the drawings.

Moreover, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art, unless otherwise defined. The terminology used in the description herein is for the purpose of description The term "and/or" used herein includes any combination of one or more of the associated listed items.

Referring to Figure 1, there is shown a perspective view of a first embodiment of an endoscope head of the present invention with the front end cover hidden. As shown in the figure, the main structure of the head base includes a support 100. The middle of the support 100 has an instrument channel 101. The instrument channel 101 is provided with an elevation clamp 200 at the outlet. The surgical instrument is extended by the instrument channel 101. The gripper 200 is lifted up. One side of the instrument channel has a mounting base 102. The mounting base 102 is sequentially provided with a water gas spout 103, an imaging lens 104 and a light source 105, the lifting clamp 200, the instrument channel 101, the water gas jet 103, the imaging lens 104 and the light source 105. The prior art can be used, and will not be described in detail herein.

One side of the support 100 is also provided with a wire rope passage 106 which is separated from the instrument passage 101 by a wall plate 107. The wire rope 300 is extended from the wire rope passage 106 and connected to the lift clamp 200 via the crankshaft 400.

In addition, a hook 108 is provided on the support 100, specifically at the end of the mount 102, and the hook 108 projects along the length of the headstock. Further, the hook 108 in this embodiment includes a hooking portion 1081, a resisting portion 1082 and a connecting portion 1083. Specifically, as shown in FIG. 2, the connecting portion 1083 protrudes from the end surface of the mounting base 102, and the resisting portion 1082 is fixed at An end portion of the connecting portion 1083 is disposed on a side of the end surface of the mounting base 102 with a resisting plane 1084 parallel to the end surface of the mounting seat. The hooking portion 1081 is approximately a rectangular block disposed on a side of the resisting plane 1084. The end surface of the mounting base 102 is extended so that there is a difference in height between the end surface of the hooking portion 1081 and the abutting plane 1084.

Referring to Fig. 3, there is shown an exploded view of the lifter and the crankshaft of the present invention, and the front end cover is also hidden. As shown, the crankshaft 400 is preferably of the "L" type with one end passing through the wall panel 107. The hole 109 is consolidated with the lift clamp 200, and the other end is fixed with the wire rope 300. Thus, the wire rope 300 can be used to drive the lift clamp 200 to rotate, and the wire rope 300 and the lift clamp 200 are respectively located in two passages. Avoid wrapping the wire rope 300 around the surgical instrument.

Referring to Figure 4, there is shown a perspective view of an embodiment of the front end cover of the present invention. As shown, the front end cover preferably includes an end wall 510 and side walls 520 disposed along the circumference of the end wall 510, the end wall 510 and the side wall 520. An incomplete cylindrical structure is formed. When the front end shield is coupled to the support 100, the lift clamp 200 can drive the surgical instrument out of the hollow portion of the side wall of the tubular structure.

The end wall 510 is provided with a substantially fan-shaped notch. A side of the circular arc has a stopper 530 extending therefrom. The stopper 530 divides the notch into the first hole 501 and the second hole 502, wherein the first hole 501 is The size should be larger than the size of the hook 108 so that the hook 108 can pass through the first hole 501, and the size of the second hole 502 should be larger than the size of the hook portion 1081, so that the hook portion 1081 can be hooked into the second hole 502. Inside.

Referring to FIG. 5 to FIG. 7 , respectively, a schematic diagram of the connection between the front end cover and the support of the present invention is shown. In the present invention, the front end cover 500 is detachably connected to the support 100, and when the endoscope is used, the relative support is used. The movement of 100 effects a switch between the locked connection state of the pedestal and the unlocked disengaged state. Specifically, as shown in FIG. 5, the front end cover 500 is covered at the end of the support 100 in the direction of the arrow, and the hook 108 passes through the end wall 510 from the first hole 501 until the state shown in FIG. 6 is reached, and then the front end cover 500 Rotating in the direction of the arrow in FIG. 6 , the hooking portion 1081 of the hook 108 is hooked into the second hole 502 , and the resisting surface 1084 on the resisting portion 1082 is abutted against the end surface 531 of the stopper to restrict the front end cover 500 along the hooking portion. 1081 is hooked into the direction of the second hole (hereinafter referred to as the hooking direction) in the opposite direction; the side walls of the hooking portion 1081 are respectively abutted against the side wall 532 of the block and the side wall 503 of the second hole 502, and the restriction is restricted. The rotation of the front end cover 500 relative to the support 100 until the state shown in FIG. 7 is reached, at which time the front end cover 500 is fixed relative to the support 100; when unlocking, it is only necessary to drive the front end cover 500 to advance a small distance in the hooking direction, so that The hooking portion 1081 is withdrawn from the second hole 502, and then the front end cover 500 is reversely rotated to align the hooking portion 1081 with the first hole 501, and finally the first hole 501 is removed by moving in a direction opposite to the hooking direction.

Compared with the prior art, the invention has the following advantages: when the front end cover is connected with the support, the wire rope and the outlet of the wire rope passage are covered by a structure not shown, so that the body fluid can be directly entered into the wire rope passage, and the front end cover and the front end cover are When the support is separated, the wire rope channel can be directly punched Wash, so you can eliminate the dead angle. On the other hand, there is no need to additionally provide a sealing ring at the rotating shaft, because even if a small amount of body fluid enters the wire rope passage from the joint of the crankshaft and the wall plate, the front end cover can be disassembled to directly sterilize the wire rope passage, so the present invention does not exist because of the sealing ring. The problem of seal failure due to wear.

The invention also discloses another embodiment of locking and unlocking the front end cover relative to the movement of the support. After the hook passes through the first hole in the front end cover, the front end cover is aligned with the second hole through the radial translation, that is, the front end The cover replaces the rotation by a translational movement, however this manner increases the radial dimension of the front end cover, so the present invention preferably employs a rotational manner.

It should be noted that the first hole and the second hole in the present invention may communicate with each other as shown in the figure, or may be two independent holes, and the end wall between the two independent holes may serve as a block. The role of the block.

In the above embodiment, the movement of the front end cover in the direction opposite to the hooking direction of the hook is restricted by the abutting portion, but it can still move in the direction in which the hook is hooked, resulting in the risk of falling off between the front end cover and the support, based on Therefore, the present invention also proposes a second embodiment, which differs from the first embodiment in that an elastic sheath is sleeved on the outer side of the front end cover. Referring to Figures 8 and 9, Figure 8 shows the front end cover and FIG. 9 is a cross-sectional view showing the front end cover, the elastic sheath and the support. As shown, the elastic sheath 600 is connected to the outer side of the front end cover 500 by a snap structure, and the end portion thereof The inner wall has a recess, and a thin wall portion 610 which is more susceptible to elastic deformation is formed on the end wall of the elastic sheath 600 due to the mitigating action of the recess. During the process of the hook 108 passing through the end wall 510 of the front end cover 500, the hook 108 extends between the grooves to resist the elastic deformation of the thin portion 610, thereby indirectly giving the front end cover 500 a reverse hook. The force of the direction. Thus, the end wall 510 of the front end cover 500 abuts against the abutting portion 1082, and its movement in the opposite direction to the hooking direction is restricted by the abutting portion 1082, while the thin portion 610 abuts against the hook 108, which limits the front end. The movement of the cover in the hooking direction enables complete fixing of the front end cover 500 and the support 100.

The invention also discloses an endoscope device using the above endoscope head.

The above is a detailed description of the preferred embodiments of the present invention, but the present invention is not limited to the embodiments, and various equivalent modifications or substitutions can be made by those skilled in the art without departing from the spirit of the invention. Such equivalent modifications or alternatives are intended to be included within the scope of the claims.

Claims (11)

An endoscope headstock includes a support, a lifter and a wire rope, wherein the support is provided with an instrument passage and a wire rope passage, the wire rope is located in the wire rope passage, and an end portion thereof is connected with the lift clamp The method further includes a front end cover detachably coupled to the support, and when the front end cover is coupled to the support, the front end cover at least the wire rope The exit of the wire rope channel is covered. The endoscope head according to claim 1, wherein the front end cover realizes switching between a locked connection state and an unlocked separated state of the holder by movement relative to the holder. The endoscope head according to claim 2, wherein the holder is provided with a hook, the front end cover is provided with a first hole through which the hook passes, and the card is provided A second hole that is hooked to the front end cover and then hooked to the front end cover. The endoscope head according to claim 3, wherein the front end cover is rotatable relative to the holder, and the first hole and the second hole are distributed along a circumferential direction of a rotation circumference of the front end cover. The endoscope head according to claim 4, wherein the front end cover is provided with a notch, and a stopper is protruded from one side of the notch, and the stopper divides the notch into the The first hole and the second hole. The endoscope head according to claim 5, wherein the hook comprises a hooking portion and a resisting portion, the hooking portion is hooked to the second hole, and the abutting portion is in the collapsing After being hooked to the second hole, the portion abuts against the stopper to restrict movement of the front end cover in a direction opposite to the hooking direction of the hook. The endoscope head according to claim 6, wherein said notch includes a scalloped notch, and said stopper is provided on a circular arc side of said notch. The endoscope head according to claim 3, wherein said front end cover is movable in a radial direction of said holder relative to said holder, said first hole and said second hole being along said front end cover Move the path distribution. The endoscope head according to claim 3, further comprising an elastic sheath sleeved on an outer side of the front end cover and passing through the front end cover at the hook During the process, the elastic sheath is elastically deformed by the hook, thereby giving the front The end shield is opposite to the force of the hook hooking direction. The endoscope head according to claim 1, wherein the wire passage and the instrument passage are arranged on two sides of a partition wall, and the partition wall is provided with a through hole, and the through hole is inserted A crankshaft is connected, and two ends of the crankshaft are respectively connected to the lift clamp and the wire rope. An endoscope comprising the endoscope head according to any one of claims 1 to 10.

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