Medical ribbon

Abstract

The utility model discloses a medical tie which comprises a tie body and a bayonet seat, the tie body is of a strip-shaped structure, the tie body comprises an inner side face and an outer side face opposite to the inner side face, a clamping strip area extending in the length direction of the tie body is arranged on the inner side face, the bayonet seat is fixed at one end of the tie body, and the bayonet seat is fixed at the other end of the tie body. A through hole is transversely formed in the bayonet seat, the opening direction of the through hole is parallel to the length direction of the cable tie body, clamping teeth used for locking the clamping strip area are arranged in the through hole, and after the free end of the cable tie body penetrates through the through hole, the clamping teeth and the clamping strip area are matched to form a binding ring for binding a target object. According to the medical binding band, the opening direction of the through hole is parallel to the length direction of the binding band body, so that a gap at the binding position is reduced, a blood vessel connector can be tightly attached to an artificial blood vessel and a human autoblood vessel, and the situation that blood leaks due to the fact that the gap at the binding position is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical tie. Background Art

[0002] In surgical operations, the connection between artificial blood vessels and human autologous blood vessels usually adopts the method of direct suture. This method uses delicate suture techniques to suture one end of the artificial blood vessel to the corresponding part of the patient's autologous blood vessel to ensure a tight connection between the two and smooth blood flow.

[0003] However, in the following situations, a blood vessel connector is needed to complete the connection: (1) The blood vessel diameters do not match. There is a large difference in diameter between the artificial blood vessel and the autologous blood vessel. Direct suture may lead to mismatched blood vessel calibers, thus affecting blood circulation; (2) The blood vessel wall is fragile. In some diseases, such as arteriosclerosis, aneurysm, etc., the blood vessel wall may become fragile and unable to withstand the tension of direct suture. At this time, the blood vessel connector can provide additional support and stability, reducing the risk of blood vessel rupture; (3) When the blood vessel length is insufficient and the artificial blood vessel and the autologous blood vessel cannot be directly sutured, the blood vessel connector can be used as a bridging tool to fill the defect of insufficient blood vessel length and ensure smooth blood flow; (4) In the case of special blood vessel positions, such as coronary artery bypass surgery, etc., due to the special blood vessel position, direct suture is technically difficult. In these situations, the use of a blood vessel connector can provide a fast and effective blood vessel connection method, helping to reduce the operation time, improve the operation success rate, and possibly reduce the risk of postoperative complications.

[0004] During the use of the blood vessel connector, a tie can be used to fix the artificial blood vessel and the human autologous blood vessel on the blood vessel connector to ensure a tight fit and no leakage between the blood vessel connector and the blood vessels. The tie includes a lock head, which extends from a slender and flexible tail. When in use, the tail part is passed through the lock hole on the distal lock head, and the ratchet claw engages with a group of ratchet teeth spaced along the tail, thus forming a tightening loop that can tighten the target object. However, when the existing medical tie fixes the artificial blood vessel and the human autologous blood vessel on the blood vessel connector, there is a large gap between the tying mouth of the tie and the artificial blood vessel or the human autologous blood vessel, resulting in an inability to tightly fit between the blood vessel connector and the blood vessels and prone to blood leakage. Therefore, there is an urgent need for a medical tie that can ensure a tight fit between the blood vessel connector and the blood vessels and avoid leakage. Summary of the Utility Model

[0005] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a medical tie to ensure a tight fit between the blood vessel connector, the artificial blood vessel, and the human autologous blood vessel, and avoid the occurrence of blood leakage caused by an excessive gap at the tying mouth.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A medical cable tie, comprising:

[0007] A cable tie body, the cable tie body is a strip-shaped belt structure, the cable tie body includes an inner side surface and an outer side surface opposite to the inner side surface, and a card strip area extending along the length direction of the cable tie body is arranged on the inner side surface;

[0008] A bayonet seat, the bayonet seat is fixed at one end of the cable tie body, a through hole is horizontally arranged on the bayonet seat, the opening direction of the through hole is parallel to the length direction of the cable tie body, and a card tooth for locking the card strip area is arranged in the through hole. After the free end of the cable tie body passes through the through hole, the card tooth and the card strip area cooperate to form a cable tie loop for tightening the target object.

[0009] As a further improvement of the present utility model, an arc-shaped transition part bending towards the top of the bayonet seat is connected to the end of the bayonet seat far from the cable tie body, and the thickness of the arc-shaped transition part gradually becomes thinner from the end close to the bayonet seat to the end far from the bayonet seat.

[0010] As a further improvement of the present utility model, the card tooth includes a clamping part that is clamped with the card strip area and an unlocking part that is connected to the clamping part and has one end extending out of the through hole, and the other end of the unlocking part is connected to the inner wall of the through hole.

[0011] As a further improvement of the present utility model, the longitudinal section of the clamping part is serrated.

[0012] The cable tie body has a conical front end, and the conical front end has a pointed head for guiding the cable tie body to insert into the through hole.

[0013] As a further improvement of the present utility model, the length of the cable tie body is 15 - 35 cm.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. For the medical cable tie of the present utility model, the opening direction of the through hole is set to be parallel to the length direction of the cable tie body, reducing the gap at the tying opening, enabling the vascular connector to fit tightly with the artificial blood vessel and the human autologous blood vessel, and avoiding the occurrence of blood leakage caused by too large a gap at the tying opening.

[0016] 2. For the medical cable tie of the present utility model, by arranging an arc-shaped transition part bending towards the top of the bayonet seat at the end of the bayonet seat far from the cable tie body, and the thickness of the arc-shaped transition part gradually becomes thinner from the end close to the bayonet seat to the end far from the bayonet seat, the gap at the tying opening is further reduced, so that the blood vessel and the vascular connector fit more tightly. Brief Description of the Drawings

[0017] Figure 1 Schematic diagram of the utility model's cable tie in the unfolded state;

[0018] Figure 2 Schematic diagram of the utility model's cable tie in the sleeved state;

[0019] Figure 3 Enlarged schematic diagram at position B in the utility model;

[0020] Figure 4 Schematic diagram of the application scenario of the utility model's cable tie, blood vessel and blood vessel connector;

[0021] Figure 5 Side view of the application scenario of the utility model's cable tie, blood vessel and blood vessel connector;

[0022] Figure 6 Cross-sectional view of the utility model's cable tie in the sleeved state;

[0023] Figure 7 Enlarged schematic diagram at position C in the utility model.

[0024] In the drawings:

[0025] 100, cable tie body; 110, inner side; 120, outer side; 130, strip area; 140, tapered front end; A, tying loop;

[0026] 200, bayonet seat; 210, through hole; 220, locking teeth; 220a, engaging part; 220b, unlocking part;

[0027] 300, arc transition part;

[0028] 400, blood vessel; 500, blood vessel connector. Detailed Description of the Preferred Embodiments

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Figures 1 to 7 The structure diagram of an embodiment of a medical cable tie of the present utility model is shown, and its main part includes a cable tie body 100, a bayonet seat 200 and an arc transition part 300.

[0031] The cable tie body 100 is a strip-shaped structure and can be bent and deformed. The cable tie body 100 includes an inner side surface 110 and an outer side surface 120 opposite to the inner side surface 110. A strip area 130 extending along the length direction of the cable tie body 100 is provided on the inner side surface 110. Among them, when the cable tie is in the unfolded state, the bottom of the outer side surface 120 is flush with the bottom of the bayonet seat 200. In this embodiment, in order to adapt to human autologous blood vessels or artificial blood vessels of different thicknesses, the length of the cable tie body 100 is set to 15-35 cm, and the material of the cable tie body 100 is nylon. The cable tie body 100 has a tapered front end 140, and the tapered front end 140 has a pointed head for guiding the cable tie body 100 to insert into the through hole 210, so that the cable tie body 100 can be quickly inserted into the through hole 210 provided on the bayonet seat 200 to form a tie loop A.

[0032] Preferably, in this embodiment, a fixing ring is also movably sleeved on the cable tie body 100. When the cable tie body 100 sleeves the artificial blood vessel and the human autologous blood vessel on the blood vessel connector, the remaining length area of the cable tie body 100 will protrude outward from the bayonet seat 200. In order to avoid interference with the surrounding tissues, a fixing ring is slidably sleeved on the outer peripheral wall of the cable tie body 100, so that the remaining length area of the cable tie body 100 can be inserted into the fixing ring to achieve fixation.

[0033] The bayonet seat 200 is used to lock the cable tie body 100 to cooperate to form a locking target object. The bayonet seat 200 is fixed at one end of the cable tie body 100. A through hole 210 is horizontally provided on the bayonet seat 200, and the opening direction of the through hole 210 is parallel to the length direction of the cable tie body 100. Among them, the bayonet seat 200 is a structure with a rectangular or square cross section. The through hole 210 horizontally penetrates the bayonet seat 200. The through hole 210 includes an inlet and an outlet, and the axes of the inlet and the outlet are parallel to the length direction of the cable tie body 100. When in use, the cable tie body 100 is turned clockwise and inserted into the through hole 210 on the left side of the bayonet seat 200. A tooth 220 for locking the strip area 130 is provided in the through hole 210. The tooth 220 is inclined from high to low from the end far away from the cable tie body 100 to the end close to the cable tie body 100 in the through hole 210. One end of the tooth 220 far away from the cable tie body 100 is connected to the upper inner wall of the through hole 210, and the other end extends out of the through hole 210 and extends towards the cable tie body 100. A gap for the cable tie body 100 to pass through is formed between the bottom of the tooth 220 and the lower inner wall of the through hole 210. When the free end of the cable tie body 100 passes through this gap, the tooth 220 cooperates with the strip area 130 on the cable tie body 100 to form a tie loop A for tightening the target object.

[0034] In the prior art, the opening direction of the through hole formed in the general buckle base 200 is perpendicular to the direction of the cable tie body 100. During use, the cable tie body 100 needs to be inserted perpendicularly into the through hole. After the perpendicular insertion, since both the blood vessel connector and the blood vessel are cylindrical structures, with this structural design, after the cable tie is fastened, there is still a relatively large gap between the tied part of the cable tie and the artificial blood vessel or the human autologous blood vessel, resulting in the inability of the blood vessel connector to fit tightly with the blood vessel, and it is easy to occur the situation of blood leakage. In this embodiment, the opening direction of the through hole 210 is set to be parallel to the length direction of the cable tie body 100. The free end of the cable tie body 100 is directly inserted horizontally into the through hole 210 provided in the buckle base 200. The locking teeth 220 provided in the buckle base 200 lock and engage the strip area 130, and the cable tie body 100 is fixed on the outer peripheral walls of the artificial blood vessel and the human autologous blood vessel. At this time, the tied part of the cable tie will not form a triangular-like gap formed by the flipping of the buckle base 200 after the above-mentioned perpendicular insertion, so that the artificial blood vessel, the human autologous blood vessel and the blood vessel connector fit tightly with each other, avoiding the situation of blood leakage caused by too large a gap at the tied part.

[0035] Specifically, in this embodiment, the locking teeth 220 include a clamping portion 220a that is clamped with the strip area 130 and an unlocking portion 220b that is connected to the clamping portion 220a and has one end extending out of the through hole 210. The other end of the unlocking portion 220b is connected to the inner wall of the through hole 210. In this embodiment, the longitudinal section of the clamping portion 220a is serrated. Of course, according to actual needs, the clamping portion 220a can also adopt other structures, which are not limited here. When the movable end of the cable tie body 100 passes through the gap formed between the bottom of the locking teeth 220 and the inner wall of the lower end of the through hole 210, a closed tie loop A is formed. However, when the cable tie body 100 is pulled back (in the opposite direction of the penetration direction), the clamping portion 220a will bite the strip area 130 to form a matching lock to prevent the withdrawal. When pressing one end of the unlocking portion 220b located outside the buckle base 200, the serrations of the clamping portion 220a connected thereto can be driven to move. When the clamping portion 220a is separated from the strip area 130, the cable tie body 100 can be removed from the buckle base 200, which is easier to operate compared to the design where the entire unlocking portion 220b is arranged inside the through hole 210.

[0036] Preferably, in the present embodiment, in order to further closely fit the blood vessel connector with the blood vessel and reduce the gap at the tying portion, an arc-shaped transition portion 300 that bends towards the top of the bayonet seat 200 is further connected to one end of the bayonet seat 200 away from the tie body 100. The arc-shaped transition portion 300 gradually becomes thinner from the end close to the bayonet seat 200 to the end away from the bayonet seat 200. After the tie body 100 is inserted into the through hole 210, there is a small structural dislocation (height difference) between the bottom of the bayonet seat 200 and the outer side surface 120 of the tie body 100. By providing the arc-shaped transition portion 300 that bends outwards, this height difference is gradually transitioned, so that the height difference at the tying portion gradually decreases, thereby making the blood vessel and the blood vessel connector 500 fit more closely. Clinically, blood vessel connectors of different diameters are selected for different surgical scenarios, and the diameter of the blood vessel connector is usually set to 8 mm to 30 mm to match different thicknesses of human autologous blood vessels or artificial blood vessels. The arc-shaped transition portion 300 in the present embodiment can also be matched with arc-shaped transition portions of different lengths or different curvature radii according to blood vessel connectors of different diameters to further make the arc-shaped transition portion fit on the outer peripheral walls of the blood vessel and the blood vessel connector.

[0037] Combined with Figures 1 to 7 , a medical tie of the present embodiment is specifically used as follows:

[0038] Before the operation starts, medical staff select a blood vessel connector and an artificial blood vessel of appropriate specifications according to the operation requirements to ensure that they match the diameter of the human autologous blood vessel to be connected. During the operation, the medical staff expose the blood vessel portion to be connected and remove the surrounding fat, connective tissue, and blood to better observe the blood vessel condition. Then, the two ends of the blood vessel connector are aligned with the artificial blood vessel and the human autologous blood vessel respectively, and then the tie body 100 is inserted into the through hole 210 on one side of the arc-shaped transition portion 300, and the tie body 100 is continuously pulled. The locking teeth 220 in the bayonet seat 200 lock the locking strip area 130 on the tie body 100, so that the tie body 100 fits on the outer peripheral walls of the artificial blood vessel and the human autologous blood vessel. Thus, the tie fixes the artificial blood vessel and the human autologous blood vessel on the blood vessel connector respectively to ensure that the blood vessel connector and the blood vessel fit closely and there is no leakage. After the blood vessel connector is fixed, the medical staff can check whether the blood vessel is unobstructed and whether there is leakage and other problems through contrast agents or other methods.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical cable tie, characterized in that: include: A cable tie body (100), the cable tie body (100) being a strip-shaped structure, comprising an inner side surface (110) and an outer side surface (120) opposite to the inner side surface (110), wherein the inner side surface (110) is provided with a clamping strip area (130) extending along the length direction of the cable tie body (100); A bayonet mount (200), wherein the bayonet mount (200) is fixed to one end of the cable tie body (100), and a through hole (210) is transversely arranged on the bayonet mount (200), wherein the opening direction of the through hole (210) is arranged parallel to the length direction of the cable tie body (100), and a latching tooth (220) for locking the clamping strip area (130) is arranged in the through hole (210), and when the free end of the cable tie body (100) passes through the through hole (210), the latching tooth (220) cooperates with the clamping strip area (130) to form a tie ring (A) for tightening the target object.

2. A medical cable tie according to claim 1, characterized in that: The end of the bayonet seat (200) away from the cable tie body (100) is connected to an arc-shaped transition portion (300) bent toward the top of the bayonet seat (200), and the thickness of the arc-shaped transition portion (300) gradually decreases from the end close to the bayonet seat (200) to the end away from the bayonet seat (200).

3. A medical cable tie according to any one of claims 1-2, characterized in that: The latching tooth (220) comprises a latching portion (220a) latched with the latching strip area (130) and an unlocking portion (220b) connected to the latching portion (220a) and having one end extending out of the through hole (210); the other end of the unlocking portion (220b) is connected to the inner wall of the through hole (210).

4. A medical cable tie according to claim 3, characterized in that: The longitudinal section of the clamping portion (220a) is sawtooth-shaped.

5. A medical cable tie according to claim 1, characterized in that: The cable tie body (100) has a tapered front end (140), and the tapered front end (140) has a pointed tip for guiding the cable tie body (100) to be inserted into the through hole (210).

6. A medical cable tie according to claim 1, characterized in that: The length of the cable tie body (100) is 15 to 35 cm.

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