Disposable mantle line fixer

Abstract

The utility model discloses a disposable mantle line fixer, including: sleeve, mantle line unit and sealing unit, mantle line unit includes the wire hook, the one end of wire hook passes through connecting piece fixed connection pull ring, the surface of pull ring is provided with anti-slip groove, the other end of wire hook is provided with semispherical protrusion structure, and the sealing unit is provided with the semispherical protrusion structure. The sealing unit comprises a sleeve head, the sleeve head is arranged at the end of the sleeve in a sliding and sleeving mode through elasticity of the sleeve head, the inner wall of the sleeve head is provided with a circle of protruding ring extending inwards and towards the direction of the sleeve, and the bottom of the sleeve head is provided with a wire penetrating hole for the wire hook to penetrate through. The pull ring can be prevented from slipping off from the hand through the anti-slip groove in the surface of the pull ring, the sleeve head can be tightly clamped and sleeved on the sleeve through the protruding ring, in addition, sharp edges and corners are eliminated through the hemispherical protrusion at the tail end of the wire hook, and therefore human tissue is prevented from being scratched in the wire hook take-up process.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to a disposable suture fixator. Background Technology

[0002] A suture fixation device is a medical device mainly used for suture placement during open-chest surgery in cardiothoracic surgery. The suture fixation device mainly consists of three parts: a suture hook, a sheath, and a cannula. Its working principle is to use the suture hook inside the cannula to pull out the suture, which is convenient for knotting after the operation and ensures that it can be used only once. These components together form a complete fixation system for fixing sutures during surgery.

[0003] To facilitate operation, a pull ring is usually provided at one end of the suture hook for pulling the hook to complete suture traction. However, the surface of the pull ring is smooth, and in the surgical environment, the doctor's hands are often contaminated with blood or other bodily fluids, which can easily cause the pull ring to slip off the hand. In addition, the sleeve relies on its own elasticity to fit tightly to the end of the cannula, which makes the fit between the sleeve and the cannula not tight enough. Under the influence of external forces such as collision and traction of instruments during surgery, it is easy to accidentally fall off. Furthermore, the U-shaped opening of the suture hook is too large, and the sharp edge can easily scratch and damage human tissue during the suture retraction process. These problems not only affect the efficiency of surgery, but may also have an adverse impact on the patient's prognosis. There is an urgent need for technical improvement and optimization. Therefore, a disposable suture fixation device is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current disposable cable retainer, we propose the present invention.

[0006] Therefore, the purpose of this utility model is to provide a disposable thread retainer, which is suitable for solving the problems that the pull ring of the thread retainer is easy to slip off from the hand, and the sleeve head is easy to fall off the sleeve under external force. In addition, the sharp end of the hook can easily damage human tissue during the thread winding process.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a disposable cable retainer, comprising:

[0008] Sleeves, bushing units, and sealing units;

[0009] The thread unit includes a hook, one end of which is fixedly connected to a pull ring via a connector. The surface of the pull ring is provided with an anti-slip groove, and the other end of the hook is provided with a hemispherical protrusion structure.

[0010] The sealing unit includes a sleeve, which is elastically and slidably fitted onto the end of the sleeve. The inner wall of the sleeve has a raised ring extending inward toward the sleeve. The bottom of the sleeve has a threading hole for the thread hook to pass through.

[0011] The connector is slidably inserted into the inner cavity of the sleeve from one end, and the hook passes through the threading hole of the sleeve and the end cap in sequence.

[0012] In a preferred embodiment of the disposable thread fastener described in this utility model, the anti-slip groove is spirally distributed around the surface of the pull ring, and the connector has no contact with the anti-slip groove.

[0013] As a preferred embodiment of the disposable sleeve fastener of this utility model, the connecting member includes a round rod, the hook and the pull ring are fixed by the round rod, the surface of the round rod is provided with a first conical surface and a second conical surface, the maximum diameter of the first conical surface is adapted to the inner diameter of the sleeve, and the minimum diameter of the second conical surface is adapted to the inner diameter of the sleeve head.

[0014] As a preferred embodiment of the disposable thread fastener of this utility model, the thread hook is composed of a straight hook, a transition hook and a pull hook connected in sequence. The connector is fixed at one end of the straight hook, the hemispherical protrusion is provided at the end of the pull hook, and the two ends of the transition hook are designed with a smooth transition between the straight hook and the pull hook.

[0015] As a preferred embodiment of the disposable cable holder described in this utility model, the outer surface of the sleeve has a ring of anti-slip groove, and the bottom edge of the cable hole has a ring of rounded chamfer.

[0016] As a preferred embodiment of the disposable sleeve fastener described in this utility model, the inner ring of the sleeve has a groove, and the protruding ring inside the sleeve head engages in the groove to form a detachable fixed connection structure.

[0017] As a preferred embodiment of the disposable thread fastener described in this utility model, the bottom and side of the inner protrusion ring of the sleeve head are respectively provided with a flat surface and an inclined surface, the bottom and inner wall of the slot are provided with a matching flat surface and an inclined surface, and the slot is in contact with the flat surface and the inclined surface of the protrusion ring.

[0018] The beneficial effects of this utility model are as follows: the anti-slip groove on the surface of the pull ring increases the friction between the hand and the pull ring, preventing the pull ring from slipping out of the hand; the raised ring increases the friction between the sleeve and the sleeve, so that the sleeve is tightly fitted onto the sleeve; in addition, the hemispherical protrusion at the end of the hook eliminates sharp edges, preventing scratches to human tissue during the hook reeling process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall structure of the disposable thread fastener proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the connector structure proposed in this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembly of the hook proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the cutting of the sleeve head and the disassembly of the sleeve proposed in this utility model. Attached image description:

[0025] 100. Sleeve; 101. Slot;

[0026] 200. Thread unit; 201. Thread hook; 201a. Straight hook; 201b. Transition hook; 201c. Pull hook; 202. Connector; 202a. Round rod; 202b. First conical surface; 202c. Second conical surface; 203. Pull ring; 204. Anti-slip groove;

[0027] 300, Sealing unit; 301, Sleeve head; 302, Raised ring; 303, Wire hole; 304, Anti-slip groove; 305, Flat surface; 306, Bevel. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] Example 1

[0033] Reference Figure 1 - Figure 4 The first embodiment of this utility model provides a disposable thread retainer that can prevent the pull ring from slipping from the hand and tightly lock the sleeving head onto the sleeve, and can also prevent the thread hook from scratching human tissue. It includes: sleeve 100, thread unit 200 and sealing unit 300.

[0034] The wire unit 200 includes a hook 201. One end of the hook 201 is fixedly connected to a pull ring 203 via a connector 202. The surface of the pull ring 203 is provided with an anti-slip groove 204. The other end of the hook 201 is provided with a hemispherical protrusion structure.

[0035] The sealing unit 300 includes a sleeve 301, which is elastically slidably fitted onto the end of the sleeve 100. The inner wall of the sleeve 301 is provided with a raised ring 302 extending inward toward the sleeve 100. The bottom of the sleeve 301 is provided with a thread hole 303 for the thread hook 201 to pass through.

[0036] The connector 202 is slidably inserted into the inner cavity of the sleeve 100 from one end of the sleeve 100, and the hook 201 passes through the thread hole 303 of the sleeve 100 and the sleeve head 301 in sequence.

[0037] The cannula 100 is made of medical-grade polyvinyl chloride plastic, and the hook 201 is made of nylon or stainless steel wire. During assembly, the sleeve head 301 is first placed on the end of the cannula 100. The raised ring 302 on the inner wall of the sleeve head 301 is tightly clamped to the cannula 100 by interference fit. The surface of the raised ring 302 is treated with anti-slip to increase the friction between the sleeve head 301 and the cannula 100, effectively preventing the sleeve head from falling off due to external impact during the operation. At the same time, the silicone sleeve head 301 can form a flexible wrap around the end of the cannula 100 to avoid sharp edges damaging human tissue. Then, the hook 201 is passed through the threading hole 303 of the cannula 100 and the sleeve head 301 in sequence. Then, the round rod 202a is inserted into the inner cavity of one end of the cannula 100. The round rod 202a is tightly inserted into the cannula 100 by interference fit.

[0038] The anti-slip groove 204 on the surface of the pull ring 203 is used to increase the contact area and surface roughness of the pull ring 203, so as to provide stable grip force even in complex environments where the doctor's hands are contaminated with bodily fluids. The end of the hook 201 is provided with a smooth hemispherical protrusion with the same diameter as the main body, which effectively eliminates the risk of sharp edges cutting the tissue when hooking the suture. After the hook 201 hooks the suture, the doctor can pull the pull ring 203 to drive the hook 201 to pull the suture through the thread hole 303 and the sleeve 100 in sequence, thereby completing the suture retraction operation and enabling convenient knot tying after the operation.

[0039] Example 2

[0040] Reference Figure 1 and Figure 2 This is the second embodiment of the present invention. Unlike the previous embodiment, the anti-slip groove 204 is spirally wrapped around the surface of the pull ring 203, and the connector 202 has no contact with the anti-slip groove 204.

[0041] The anti-slip groove 204, through a spiral winding method, can achieve all-round and multi-directional anti-slip coverage for the circular pull ring 203, and the anti-slip groove 204 does not conflict with the connector 202, so as to ensure the consistency and aesthetics of the overall appearance.

[0042] Specifically, the connector 202 includes a round rod 202a. The hook 201 and the pull ring 203 are fixed together by the round rod 202a. The surface of the round rod 202a is provided with a first conical surface 202b and a second conical surface 202c. The maximum diameter of the first conical surface 202b is adapted to the inner diameter of the sleeve 100, and the minimum diameter of the second conical surface 202c is adapted to the inner diameter of the sleeve head 301. The double conical structure enables the connector 202 to be accurately positioned and smoothly slide within the sleeve 100 and the sleeve head 301.

[0043] The minimum diameter of the first conical surface 202b is smaller than the inner diameter of the sleeve 100, so that the round rod 202a can be quickly inserted into the sleeve 100 through the first conical surface 202b. The maximum diameter of the second conical surface 202c is larger than the diameter of the sleeve 100, so that when the first conical surface 202b contacts the sleeve 100, the first conical surface 202b expands the sleeve 100, thereby increasing the stability of the connection between the round rod 202a and the sleeve 100, so as to ensure that the round rod 202a will not accidentally slip out of the sleeve 100 when using the hook 201.

[0044] Example 3

[0045] Reference Figure 1 and Figure 3 This is the third embodiment of the present invention. Unlike the previous embodiment, the hook 201 is composed of a straight hook 201a, a transition hook 201b, and a pull hook 201c that are fixedly connected in sequence. The connector 202 is fixed to one end of the straight hook 201a, and the hemispherical protrusion is provided at the end of the pull hook 201c. The two ends of the transition hook 201b are designed to have a smooth transition with the straight hook 201a and the pull hook 201c respectively, so as to avoid scratching human tissue during the winding process.

[0046] The smooth transition between the transition hook 201b and the straight hook 201a and pull hook 201c effectively eliminates the sharp edges at the bend of the hook 201, giving the overall structure a smooth curved shape. This avoids the risk of scratching human tissue during the surgical suture removal process. In addition, the pull hook 201c has a U-shaped curved structure, and the relative width of its opening is smaller than the inner diameter of the thread hole 303, ensuring that the pull hook 201c can pass smoothly through the thread hole 303 of the sleeve 301.

[0047] Example 4

[0048] Reference Figure 1 and Figure 4 This is the fourth embodiment of the present utility model. Unlike the previous embodiment, the outer surface of the sleeve 301 is provided with a ring of anti-slip groove 304 so that the sleeve 301 can be installed on the sleeve 100. The bottom edge of the thread hole 303 is provided with a ring of smooth chamfer so that the pull hook 201 of the line hook 201 can pass through the thread hole 303 into the sleeve 100.

[0049] The anti-slip groove 304 is used to increase the friction between the hand and the sleeve 301 so that the person can tightly fit the sleeve 301 onto the end of the sleeve 100. The thread hole 303 has an outwardly expanding rounded corner near the opening edge of the hook 201c. When the hook 201 pulls the suture through the thread hole 303, the rounded corner can prevent the end of the hook 201c from getting stuck at the end of the sleeve 301 and provide a smooth guide for the hook 201c to enter the sleeve 100, ensuring that the threading process is smooth and unobstructed.

[0050] In addition, a groove 101 is formed on the inner ring of the sleeve 100, and the protruding ring 302 inside the sleeve head 301 is engaged in the groove 101 to form a detachable fixed connection structure.

[0051] When the raised ring 302 slides into the slot 101, the sleeve 301 is limited by the slot 101, making it difficult to slide on the sleeve 100, thereby further improving the stability of the sleeve 301.

[0052] It should be noted that the bottom and side of the raised ring 302 inside the sleeve 301 are respectively provided with a flat surface 305 and a slope 306. The bottom and inner wall of the slot 101 are provided with matching flat surfaces 305 and slopes 306. The slot 101 and the flat surface 305 and slope 306 of the raised ring 302 are in contact with each other. The surface-to-surface cooperation enhances the stability and anti-detachment ability of the connection between the sleeve 301 and the sleeve 100.

[0053] When the sheath 301 is slidably inserted into the cannula 100, the tapered inclined surface 306 facilitates the sliding of the sheath 301 on the cannula 100. When the raised ring 302 slides into the slot 101, the annular plane of the raised ring 302 contacts the annular plane of the slot 101, so that the surfaces abut against each other, thereby firmly fixing the sheath 301 on the cannula 100. This ensures that the sheath 301 will not loosen or fall off under external force pulling or collision during the operation, providing a reliable guarantee for the safety of the operation.

[0054] During use, when assembling, first slide the sleeve 301 onto the end of the sleeve 100. When the protruding ring 302 slides into the slot 101, the annular plane of the protruding ring 302 contacts the annular plane of the slot 101, thereby firmly fixing the sleeve 301 onto the sleeve 100. Then, pass the wire hook 201 through the wire hole 303 of the sleeve 100 and the sleeve 301 in sequence. Then, insert the round rod 202a into the inner cavity of one end of the sleeve 100. The first conical surface 202b is used to quickly insert the round rod 202a into the sleeve 100, while the second conical surface 202c enlarges the sleeve 100, thereby ensuring that the round rod 202a will not slip out of the sleeve 100.

[0055] When picking up the suture, use the hook 201c to hold the suture, and then pull the pull ring 203. The anti-slip groove 204 on the surface of the pull ring 203 can increase the friction between the hand and the pull ring 203. Then, pull the suture hook 201 through the pull ring 203 to pull the suture through the thread hole 303 and the cannula 100 in sequence. The hemispherical smooth protrusion at the end of the hook 201c can effectively eliminate the risk of sharp edges cutting the tissue. After the suture is brought out from the cannula 100, use hemostatic forceps to clamp any part of the cannula 100 to fix the suture. Then, after the operation, loosen the hemostatic forceps and tie the suture.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A disposable cable retainer, characterized in that, include: Sleeve (100), wire unit (200), and sealing unit (300); The wire unit (200) includes a hook (201), one end of which is fixedly connected to a pull ring (203) via a connector (202). The surface of the pull ring (203) is provided with an anti-slip groove (204), and the other end of the hook (201) is provided with a hemispherical protrusion structure. The sealing unit (300) includes a sleeve (301), which is elastically slidably fitted onto the end of the sleeve (100). The inner wall of the sleeve (301) is provided with a raised ring (302) extending inward toward the sleeve (100). The bottom of the sleeve (301) is provided with a thread hole (303) for the thread hook (201) to pass through. The connector (202) is slidably inserted into the inner cavity of the sleeve (100) from one end, and the hook (201) passes through the thread hole (303) of the sleeve (100) and the sleeve head (301) in sequence.

2. The disposable cable retainer according to claim 1, characterized in that: The anti-slip groove (204) is spirally distributed on the surface of the pull ring (203), and the connector (202) has no contact with the anti-slip groove (204).

3. The disposable cable retainer according to claim 2, characterized in that: The connector (202) includes a round rod (202a), and the hook (201) and the pull ring (203) are fixed together by the round rod (202a). The surface of the round rod (202a) is provided with a first conical surface (202b) and a second conical surface (202c). The maximum diameter of the first conical surface (202b) is adapted to the inner diameter of the sleeve (100), and the minimum diameter of the second conical surface (202c) is adapted to the inner diameter of the sleeve (301).

4. The disposable cable retainer according to claim 3, characterized in that: The hook (201) is composed of a straight hook (201a), a transition hook (201b) and a pull hook (201c) connected in sequence. The connector (202) is fixed to one end of the straight hook (201a). The hemispherical protrusion is provided at the end of the pull hook (201c). The two ends of the transition hook (201b) are designed to have a smooth transition with the straight hook (201a) and the pull hook (201c) respectively.

5. The disposable cable retainer according to claim 1, characterized in that: The outer surface of the sleeve (301) is provided with a ring of anti-slip groove (304), and the bottom edge of the thread hole (303) is provided with a ring of smooth chamfer.

6. The disposable cable retainer according to claim 5, characterized in that: The inner ring of the sleeve (100) has a groove (101), and the protruding ring (302) inside the sleeve (301) is engaged in the groove (101) to form a detachable fixed connection structure.

7. The disposable thread retainer according to claim 6, characterized in that: The bottom and side of the raised ring (302) inside the sleeve (301) are respectively provided with a flat surface (305) and a slope (306). The bottom and inner wall of the slot (101) are provided with a matching flat surface (305) and a slope (306). The slot (101) and the flat surface (305) and slope (306) of the raised ring (302) are in contact with each other.

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