CN219250321U - Vascular occlusion device - Google Patents

Abstract

The utility model discloses a blood vessel blocking device, which comprises a blocking belt and a locking block, one end of the blocking belt is fixedly connected to one end of the locking block, and the other end of the locking block is provided with a L The L-shaped groove is divided into a belt-feeding section and a locking section. A pressing piece is slidably arranged in the locking section, and the other end of the blocking belt is slidably set in the L-shaped groove. The other end of the blocking band is pressed against the inner wall of the locking section, and a sleeve is sleeved on the blocking band. After passing one end of the blocking band through the blood vessel and the sleeve, the sleeve is pressed against the blood vessel Then pull the movable end of the blocking band to make the cannula block the blood vessel tightly, then slide the movable end of the blocking band from the L-shaped groove passing section to the locking section, and drive the pressing piece to make it Press the movable end of the blocking band against the inner wall of the locking section so that the locking block can position the casing to prevent the blocking band from loosening.

Description

A blood vessel blocking device

technical field

The utility model relates to the technical field of blood vessel blocking, in particular to a blood vessel blocking device.

Background technique

It is known that in the process of thoracic surgery, it is sometimes necessary to block the main trunk of the left or right pulmonary artery so as to block the blood flow of the pulmonary artery without damaging the pulmonary artery. In most cases, the blocking situation occurs in two steps. First, multiple (2-3) surgical silk threads or vascular blocking bands are used to surround the blood vessel, and then a ring-shaped sleeve is put over the silk thread or vascular band, and the purpose of tightening the blood vessel is achieved by pushing the ring-shaped sleeve toward the blood vessel.

For example, the notification number is CN217186288U, the publication date is August 16, 2022, and the utility model patent titled "vascular blocking assembly" discloses a blood vessel blocking assembly, which includes a blocking belt (1), and a The blocking sleeve (2) and the fixing clip (3), the section shape of the blocking strip (1) is circular, and the two ends of the blocking strip (1) are connected from one end of the blocking sleeve (2) Insert and pass through the other end of the blocking sleeve (2), the fixing clip (3) is clipped on the blocking belt (1), and the fixing clip (3) and the blocking sleeve (2) abutting against one side of the free end of the blocking band (1). The utility model can effectively block blood vessels and prevent damage to blood vessels.

When the blocking band in the prior art is tightening the blood vessel, it is necessary to pass one end of the blocking band through the blood vessel, and then pass through the annular cannula. Because the diameter of the blocking band is small and the material is relatively soft Therefore, it is extremely inconvenient and takes a long time for the vascular blocking belt to pass through the annular cannula, which will have a certain impact on the tightening and blocking of the blood vessels.

Utility model content

The purpose of this utility model is to provide a blood vessel blocking device to solve the above-mentioned problems in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions:

A blood vessel blocking device, comprising a blocking band and a locking block, one end of the blocking band is fixedly connected to one end of the locking block, and the other end of the locking block is provided with an L-shaped groove. The groove is divided into a belt-feeding section and a locking section. A resisting piece is slidably arranged in the locking section, and the other end of the blocking belt is slidably arranged in the L-shaped groove. The other end is pressed against the inner wall of the locking section, and a sleeve is sleeved on the blocking band.

As mentioned above, the locking block is provided with a hollow groove and a locking groove, the hollow groove communicates with the locking section of the L-shaped groove, the locking groove communicates with the hollow groove, and the hollow groove is slidably provided with Compression pieces.

As mentioned above, the lower pressing plate is installed in the locking groove in a sliding fit, and the lower pressing plate is connected with the pressing member. A rotating rod is installed in the way, and a push rod is installed at one end of the rotating rod passing through the locking groove.

As mentioned above, the side wall of the lower pressing plate near the locking section of the L-shaped groove is connected to the inner wall of the locking groove through an elastic member.

As mentioned above, the part between the inner wall of the locking groove and the lower pressure plate on the rotating rod is equipped with a fan plate, and the end of the locking groove away from the L-shaped groove is provided with an arc-shaped groove, and the fan plate and the arc The grooves are used in conjunction with each other.

As mentioned above, the material of the blocking belt is flexible material.

The beneficial effect of the utility model is that: after passing one end of the blocking band through the blood vessel and the cannula, press the cannula against the blood vessel, and then pull the movable end of the blocking band so that the cannula can press and block the blood vessel , and then slide the movable end of the blocking belt from the passing section of the L-shaped groove to the locking section, and drive the pressing member to press the movable end of the blocking belt against the inner wall of the locking section, so that the locking block Carry out positioning work on the casing to prevent the blocking band from loosening.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. For some embodiments described, those skilled in the art can also obtain other drawings according to these drawings.

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the front view of Fig. 1 of the utility model;

Fig. 3 is the top view of Fig. 1 of the utility model;

Fig. 4 is the schematic diagram of the sectional structure at A-A place of Fig. 2 of the utility model;

Fig. 5 is the schematic diagram of the sectional structure at the B-B place of Fig. 3 of the utility model;

Fig. 6 is a schematic cross-sectional structure diagram of the fan plate and the arc-shaped groove of the utility model.

Explanation of reference signs:

1. Blocking belt; 2. Locking block; 21. L-shaped groove; 211. Entering section; 212. Locking section; 22. Resisting piece; 23. Hollow groove; 24. Locking groove; 25. Lower Pressing plate; 26, rotating rod; 27, propulsion rod; 28, elastic member; 29, fan plate; 210, arc groove; 3, casing.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further introduced in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, a blood vessel blocking device provided by an embodiment of the present invention includes a blocking band 1 and a locking block 2, one end of the blocking band 1 is fixedly connected to the lock One end of the tight block 2 and the other end of the locking block 2 are provided with an L-shaped groove 21, and the L-shaped groove 21 is divided into a vertical feeding section 211 and a horizontal locking section 212, and the locking section 212 is slidably set There is a pressing member 22, the other end of the blocking band 1 is slidably arranged in the L-shaped groove 21, and the pressing member 22 presses the other end of the blocking band 1 against the inner wall of the locking section 212, so A sleeve 3 is sheathed on the blocking band 1 .

Specifically, when the blood vessel needs to be tightened and blocked, the medical personnel pass the movable end of the blocking band 1 (that is, the end of the blocking band 1 slidably connected to the L-shaped groove 21) through the blood vessel, so that the blocking band 1 Surround the blood vessel, and then pass the movable end of the blocking band 1 through the sleeve 3, so that the two ends of the blocking band 1 are located at one end of the sleeve 3 (the two ends of the blocking band 1 are located at the end of the sleeve 3 the same end), the other end of the cannula 3 is a tightening ring formed by the blocking band 1 around the blood vessel (that is, pull the active end of the blocking band 1 and pull the sleeve 3 on the blocking band 1 toward the slide near the end of the blood vessel, so that the tightening ring formed between the blocking band 1 and the sleeve 3 can tighten and block the blood vessel), and then insert the movable end of the blocking band 1 from the feeding section 211 of the L-shaped groove 21 slide into its locking section 212, so that the locking block 2 is pressed against the sleeve 3 and the sleeve 3 will not slide on the blocking band 1, at this time, the abutting member 22 is driven to make it block the band 1. The movable end is pressed against the inner wall of the locking section 212, so that the locking block 2 performs positioning operation on the sleeve 3 on the blocking band 1, and prevents the sleeve 3 from loosening on the blocking band 1. The core point of the present invention The reason is that the blocking band 1 in the prior art passes through the annular sleeve 3 (that is, the locking block 2) after passing through the blood vessel. The blocking belt 1 is inconvenient in the process of passing through the annular pipe) and takes a long time, but in the present invention, it is only necessary to slide the blocking belt 1 from the feeding section 211 of the L-shaped groove 21 into its locking section 212, Then, the blocking belt 1 is pressed against the inner wall of the locking section 212 by the pressing member 22, which greatly saves the time for the blocking belt 1 to pass through the locking block 2, and the operation is more convenient.

Further, the locking block 2 is provided with a hollow groove 23 and a locking groove 24, the hollow groove 23 communicates with the locking section 212 of the L-shaped groove 21, and the locking groove 24 is connected with the hollow groove 23 Through, the hollow groove 23 is slidably provided with a pressing member 22, specifically, when the blocking belt 1 slides from the belt-feeding section 211 of the L-shaped groove 21 into its locking section 212, and the sleeve 3 will block the belt 1 is pressed against the blood vessel and the tightening and blocking operation of the blood vessel is completed, the pressing member 22 is driven to press the movable end of the blocking band 1 against the inner wall of the locking section 212, so that the sleeve 3 The breaking band 1 will no longer slide, so that the cannula 3 locks and positions the blocking band 1, which improves the stability of the blocking band 1 for tightening and blocking blood vessels.

Further, a lower pressing plate 25 is installed in the locking groove 24 in a sliding fit, and the lower pressing plate 25 is connected with the pressing member 22. A rotating rod 26 is mounted on the side wall in a rotational fit, and a push rod 27 is installed at one end of the rotating rod 26 passing through the locking groove 24. Specifically, when it is necessary to drive the pressing member 22 so that it will block the belt 1 When the movable end is pressed against the inner wall of the locking section 212, the medical staff pushes the push rod 27 to make it drive the rotating rod 26 to slide toward the inner end of the locking groove 24, and the rotating rod 26 drives the lower pressing plate 25 toward the inner end of the locking groove 24. One end slides, and the lower pressing plate 25 drives the pressing member 22 to slide in the locking section 212 of the L-shaped groove 21, so that the pressing member 22 presses the movable end of the blocking band 1 against the inner wall of the locking section 212, which can stabilize The blocking band 1 is pressed against and positioned, which improves the effect of the blocking band 1 on the tightening and blocking of blood vessels.

Further, the side wall on the side of the locking section 212 of the lower pressing plate 25 close to the L-shaped groove 21 is connected with the inner wall of the locking groove 24 through an elastic member 28. Specifically, since the lower pressing plate 25 and the lock An elastic piece 28 is arranged between the inner walls of the tight groove 24, and when the rotating rod 26 drives the lower pressing plate 25 to slide toward one end inside the locking groove 24, the lower pressing plate 25 squeezes the elastic piece 28, so that the elastic piece 28 (elastic 28 is an element capable of axial telescopic movement, preferably a spring) in a compressed state.

Further, a fan plate 29 is installed on the part of the rotating rod 26 between the inner wall of the locking groove 24 and the lower pressing plate 25, and the end of the locking groove 24 away from the belt feeding section 211 of the L-shaped groove 21 is provided with an arc slot 210, and the fan plate 29 and the arc-shaped slot 210 are used in conjunction with each other. Specifically, (1) after the pressing member 22 presses the movable end of the blocking band 1 against the inner wall of the locking section 212, it needs The lower pressing plate 25 and the pressing member 22 are always in the locking position to the blocking band 1 (that is, the pressing member 22 presses the movable end of the blocking band 1 against the inner wall of the locking section 212), this At the same time, the medical staff rotates the rotating rod 26 to make it drive the fan panel 29 to rotate 180 degrees (the initial rotation position of the fan panel 29 is that the midpoint of its arc surface and the midpoint of the arc surface of the arc groove 210 are on the same straight line, that is, the fan panel The outer arc of the panel 29 and the arc surface of the arc groove 210 are in mutually symmetrical positions), so that the fan plate 29 rotates into the locking groove 24 (that is, the midpoint of the arc surface of the fan plate 29 and the arc surface of the arc groove 210 The midpoints of the two sides overlap with each other), so that the locking groove 24 performs locking and positioning operation on the fan plate 29 (because the elastic member 28 is in a compressed state, when the fan plate 29 rotates into the locking groove 24, the medical staff releases the pair The extrusion of the rotating rod 26, under the rebound effect of the elastic member 28, makes the fan plate 29 abut against the inner wall of the arc-shaped groove 210, so that the rotating rod 26 drives the lower pressing plate 25 and the pressing member 22 to always be in a blocking position. The locked position of the belt 1), so that the rotating rod 26 will not rebound to the initial position (that is, the position where the pressing member 22 does not press the movable end of the blocking belt 1 against the inner wall of the locking section 212); ( 2) When the blocking belt 1 needs to release the effect of tightening and blocking the blood vessels, the medical personnel turn the rotating rod 26 to drive the fan plate 29 to rotate 180 degrees to return to the initial position (that is, the fan plate 29 is rotated from its curved surface to the initial position). The midpoint of the midpoint of the arc surface of the midpoint and the arc groove 210 is rotated until the midpoint of the arc surface of the fan plate 29 and the midpoint of the arc surface of the arc groove 210 are on the same straight line), and the elastic member 28 Under the action of rebound, the elastic member 28 drives the rotating rod 26 to move to the initial position through the lower pressing plate 25, so that the pressing member 22 releases the tightening and blocking operation of the blocking belt 1 .

Preferably, the material of the blocking band 1 is a flexible material. Specifically, in order to protect blood vessels, the blocking band 1 in this embodiment only needs to have good flexibility and does not need to have elasticity and contractility.

Some exemplary embodiments of the present utility model have been described above only by way of illustration. Undoubtedly, for those skilled in the art, without departing from the spirit and scope of the present utility model, various Modifications are made to the described embodiments. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims (6)

1. A blood vessel blocking device, comprising a blocking band, characterized in that it also includes a locking block, one end of the blocking band is fixedly connected to one end of the locking block, and the other end of the locking block is provided with L-shaped groove, the L-shaped groove is divided into a vertical belt-feeding section and a horizontal locking section, the locking section is slidably provided with a pressing member, and the other end of the blocking belt is slidably arranged in the L-shaped groove, so The pressing member presses the other end of the blocking band against the inner wall of the locking section, and the blocking band is sleeved with a sleeve. 2. A blood vessel blocking device according to claim 1, wherein a hollow groove and a locking groove are opened in the locking block, and the hollow groove communicates with the locking section of the L-shaped groove, The locking groove communicates with the hollow groove, and a pressing member is slidably arranged in the hollow groove. 3. A blood vessel blocking device according to claim 2, characterized in that, a lower pressing plate is installed in the locking groove in a sliding fit, the lower pressing plate is connected with the pressing member, and the lower pressing plate is far away from the L A rotating rod is installed on the side wall of one side of the locking section of the groove in a rotational fit manner, and a push rod is installed on one end of the rotating rod passing through the locking groove. 4. A blood vessel blocking device according to claim 3, characterized in that an elastic member passes between the side wall on the side of the locking section of the lower pressing plate close to the L-shaped groove and the inner wall of the locking groove. connected. 5. A blood vessel blocking device according to claim 3, characterized in that a fan plate is installed on the rotating rod between the inner wall of the locking groove and the lower pressing plate, and the locking groove is far away from the L-shaped groove One end of the belt-feeding section is provided with an arc-shaped groove, and the fan plate and the arc-shaped groove are used in cooperation with each other. 6 . The blood vessel blocking device according to claim 1 , wherein the material of the blocking band is a flexible material. 7 .

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