Atraumatic vein occlusion clip for organ transplantation

Abstract

Provided in the present invention is an atraumatic vein occlusion clip for organ transplantation, the clip comprising a fixed clip body portion, wherein a first clamping part is provided at the front end of the fixed clip body portion, the first clamping part is connected to the fixed clip body portion by means of a connecting part, and a clamping opening is provided opposite the connecting part; and a sliding groove is provided in the fixed clip body portion, limiting teeth are provided on two sides of the upper part of the sliding groove, an adjustment assembly is slidably provided in the sliding groove, the front end of the adjustment assembly is connected to a movable clip body portion, a second clamping part is provided at the front end of the movable clip body portion, and the second clamping part cooperates with the first clamping part to occlude a vein. The adjustment assembly is used to adjust the extension length of the movable clip body portion, so as to adjust the clamping distance between the first clamping part and the second clamping part, and the clamping force is fixed, such that a medical staff member can directly sense the degree of clamping during adjustment, and the atraumatic vein occlusion clip has a better vein occlusion effect, and is more convenient to use.

Description

A non-traumatic vein occlusion clip for organ transplantation Technical Field

[0001] This invention relates to the field of medical devices, and in particular to a non-invasive venous occlusion clip for organ transplantation. Background Technology

[0002] Transplantation is a technique that involves surgically or otherwise introducing cells, tissues, or organs from one individual into another person's own body or a part of another individual to replace those that have lost their function. During organ transplantation, the procedure is complex and involves many blood vessels and nerves. To prevent excessive blood flow from interfering with the surgery, it is necessary to clamp the blood vessels to block blood flow. In current surgeries, hemostatic forceps are commonly used for clamping. However, when using hemostatic forceps, the long handles remain upright next to the surgical incision, affecting surgical manipulation and making them easily accessible to surgical personnel, potentially causing tissue damage. Furthermore, the procedure involves numerous and fragile veins, making them susceptible to damage with hemostatic forceps. The use of multiple hemostatic forceps is also cumbersome, and some veins are located in hidden areas, making it easy to lose the forceps.

[0003] To address the aforementioned issues, Chinese patent document CN201910654056.1 discloses a non-traumatic venous occlusion clamp for organ transplantation, comprising a shell, an operating window, a shock-absorbing pad, a blocking block, a fixed clamping plate, a protective pad, a compression groove, a fluorescent strip, a positioning block, a connecting rod, a movable clamping plate, a compression strip, a slide, an operating button, a spring protrusion, a power spring, a protective sleeve, a connecting hole, a sealing sleeve, and a slide groove. The beneficial effects of this invention are as follows: the protective pad and the movable clamp are both made of soft material and can interlock with each other in an arc shape. The arc-shaped structure can clamp multiple veins at once, and the soft material will not damage the blood vessels. The extrusion strip protrudes from the surface of the movable clamp and matches the shape of the concave extrusion groove, which can effectively clamp the veins and play a good blocking role. Two symmetrical spring protrusions with power springs are fixed on the rear end face of the slide, which makes the elastic force on the slide more uniform and makes the slide less prone to deviation. However, in actual operation, since blood vessels have a certain elasticity and the clamping force is provided by the power spring, it is necessary to select a power spring with appropriate elasticity for different blood vessels. Otherwise, it is easy to have problems such as not clamping tightly enough and falling off or clamping too tightly and damaging the blood vessels. This makes it difficult to implement in actual operation.

[0004] Chinese patent document CN202110220185.7 also discloses a non-traumatic venous occlusion clip for organ transplantation, which includes a clip body. A handle is provided on one side of the clip body, and a first rotating shaft is fixedly connected to one side of the handle. One end of the first rotating shaft extends through one side of the clip body into its interior. Two first driving wheels are fixedly connected to the outer wall of the first rotating shaft. Second rotating shafts are rotatably connected to both sides inside the clip body, and first driven wheels are fixedly connected to one side of the outer wall of each of the two second rotating shafts. This invention facilitates the use of the clip body by allowing the two first clamping blocks and two second clamping blocks to slide. The arrangement of the first and second clamping blocks prevents the clip body from falling off or not clamping tightly. Simultaneously, the two first and two second clamping blocks clamp the clip, triggering a limit switch to illuminate a light, which serves as a reminder to medical personnel and prevents the clip from being left behind on the patient. While the above solution avoids the problem of insufficient clamping, its structure is too complex, the cost is too high, and it is inconvenient to implement during surgery.

[0005] The aforementioned problems seriously affect the effectiveness of venous occlusion in organ transplantation surgery, making the surgical process more complicated, and may even lead to serious medical accidents due to poor occlusion.

[0006] Therefore, there is an urgent need for a non-traumatic venous occlusion clip for organ transplantation that can solve the problems of existing venous occlusion clips having inconvenient clamping force adjustment and overly complex structures, making them unsuitable for use in surgery. Summary of the Invention

[0007] The purpose of this invention is to provide a non-traumatic venous occlusion clip for organ transplantation, so as to solve the problems of existing venous occlusion clips having inconvenient clamping force adjustment and overly complex structure, making them unsuitable for use in surgery.

[0008] To achieve the above objectives, the present invention provides the following solution: The present invention provides a non-traumatic venous occlusion clip for organ transplantation, comprising a fixed clip body, a first clamping part at the front end of the fixed clip body, the first clamping part being connected to the fixed clip body via a connecting part, and a clamping opening opposite to the connecting part; a sliding groove within the fixed clip body, limiting teeth on both sides of the upper part of the sliding groove; an adjusting component slidably disposed within the sliding groove, the adjusting component cooperating with the limiting teeth; a movable clip body connected to the front end of the adjusting component; a second clamping part at the front end of the movable clip body, the second clamping part cooperating with the first clamping part for venous occlusion.

[0009] By adopting the above technical solution, the extension length of the moving clamp part can be adjusted using the adjustment component, thereby adjusting the clamping distance between the first clamping part and the second clamping part. The clamping force is fixed, and medical staff can directly sense the degree of clamping during the adjustment process, resulting in better vein blocking effect and more convenient use.

[0010] As a preferred technical solution, the front sidewall of the fixed clamping body is provided with a guide hole, and the movable clamping body is disposed through the guide hole.

[0011] By adopting the above technical solution, stable guidance of the moving clamping body can be achieved, avoiding the impact of its offset on the clamping effect.

[0012] As a preferred technical solution, the fixed clamping part, the first clamping part and the connecting part are all made of medical-grade polyvinyl chloride, and the three are integrally molded.

[0013] By adopting the above technical solutions, the structure becomes simpler, production becomes more convenient, costs are effectively reduced, and it is also convenient to reuse after disinfection.

[0014] As a preferred technical solution, the inner side of the first clamping part is provided with a connecting protrusion, and a flexible anti-slip pad layer is connected to the connecting protrusion. The flexible anti-slip pad layer is tightly fitted and connected to the connecting protrusion.

[0015] By adopting the above technical solution, the flexible anti-slip mat layer can be used once, which is safer and easier to replace.

[0016] As a preferred technical solution, the flexible anti-slip pad layer is made of medical-grade silicone material, and its surface is provided with anti-slip texture.

[0017] By adopting the above technical solution, the anti-slip texture can better achieve the clamping effect and prevent slippage.

[0018] As a preferred technical solution, the adjustment component includes a slider, a receiving groove is provided in the slider, a button is retractably provided in the receiving groove, teeth are provided on both sides of the button, the teeth cooperate with the limiting teeth, and a spring is provided between the button and the slider.

[0019] By adopting the above technical solution, when the button is pressed, the tooth disengages from the limiting tooth, and the slider can slide freely to adjust the tightness of the clamping. When the button is released, it quickly floats up under the action of the spring, so that the tooth is limited within the limiting tooth, achieving the effect of clamping and fixing.

[0020] As a preferred technical solution, the surface of the slider is provided with a drag-reducing coating.

[0021] By adopting the above technical solution, the drag-reducing coating can effectively reduce the coefficient of friction, thereby improving the smoothness of adjustment.

[0022] As a preferred technical solution, the movable clamping body includes a slide rod, one end of which is connected to the slider, and the other end of which is connected to the second clamping part through a clamping groove.

[0023] By adopting the above technical solution, the second clamping part can also be replaced as needed to adapt to different vein sizes, improve the blocking effect, and also improve safety.

[0024] As a preferred technical solution, the surface of the second clamping part has an arc-shaped structure.

[0025] By adopting the above technical solution, the veins will not be damaged even when clamped, thus achieving a protective effect.

[0026] As a preferred technical solution, it also includes an elastic sheath, which is fitted over the outside of the fixed clamping body and has a fluorescent strip on its surface.

[0027] By adopting the above technical solution, blood and dirt can be prevented from entering the internal organs during the operation, making disinfection and cleaning more convenient. At the same time, the fluorescent strip can make the blocking clip very easy to find, making it convenient to retrieve the blocking clip after the operation and preventing it from being missed.

[0028] The present invention achieves the following beneficial technical effects compared with the prior art: 1. The present invention provides a non-traumatic venous occlusion clip for organ transplantation, comprising a fixed clip body, a first clamping part at the front end of the fixed clip body, the first clamping part being connected to the fixed clip body via a connecting part, and a clamping opening opposite to the connecting part; a sliding groove within the fixed clip body, limiting teeth on both sides of the upper part of the sliding groove; an adjusting component slidably disposed within the sliding groove, the adjusting component cooperating with the limiting teeth; a movable clip body connected to the front end of the adjusting component, a second clamping part at the front end of the movable clip body, the second clamping part cooperating with the first clamping part for venous occlusion; by adjusting the extension length of the movable clip body using the adjusting component, the clamping distance between the first clamping part and the second clamping part can be adjusted, and the clamping force is fixed, allowing medical personnel to directly perceive the degree of clamping during adjustment, resulting in better venous occlusion and greater ease of use.

[0029] 2. This invention provides a non-traumatic venous occlusion clip for organ transplantation, which achieves stable guidance of the moving clip body, preventing it from affecting the clamping effect due to displacement; the structure is simpler, production is more convenient, effectively reducing costs, and it is also convenient for reuse after disinfection; the flexible anti-slip pad layer can be used once, making it safer and easier to replace; the anti-slip texture can better achieve the clamping effect and prevent slippage; when the button is pressed, the teeth disengage from the limiting teeth, and the slider can slide freely to adjust the tightness of the clamping; when the button is released, it quickly floats up under the action of the spring, so that the teeth are limited within the limiting teeth, achieving the clamping and fixing effect; the drag-reducing coating can effectively reduce the coefficient of friction, thereby improving the smoothness of adjustment; the second clamping part can also be replaced as needed to adapt to different vein sizes, improving the occlusion effect and safety; even when clamped, it will not damage the vein, thus providing a protective effect; it can prevent blood from entering the interior during the operation, making disinfection and cleaning more convenient, and the fluorescent strip can make the occlusion clip very conspicuous, making it easy to retrieve the occlusion clip after the operation and preventing omission. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 is a side view of a non-invasive venous occlusion clip for organ transplantation provided by the present invention.

[0032] Figure 2 is a cross-sectional view of a non-traumatic venous occlusion clip for organ transplantation provided by the present invention.

[0033] In the figure: 1: Fixed clamping part, 2: First clamping part, 3: Connecting part, 4: Connecting part, 5: Slide groove, 6: Limiting tooth, 7: Adjustment component, 71: Slider, 72: Receiving groove, 73: Button, 74: Tooth, 75: Spring, 8: Moving clamping part, 81: Slide rod, 82: Clamping groove, 9: Second clamping part, 10: Guide hole, 11: Connecting protrusion, 12: Flexible anti-slip pad layer. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the terms "length", "width", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Example 1: This example provides a non-traumatic venous occlusion clip for organ transplantation, as shown in Figures 1 and 2. It includes a fixed clip body 1, a first clamping part 2 at the front end of the fixed clip body 1, the first clamping part 2 and the fixed clip body 1 are connected by a connecting part 3, and the connecting part 3 is provided with a clamping port 4 facing each other. The fixed clip body 1 is provided with a sliding groove 5, and limiting teeth 6 are provided on both sides of the upper part of the sliding groove 5. An adjustment component 7 is slidably provided in the sliding groove 5. The adjustment component 7 cooperates with the limiting teeth 6. The front end of the adjustment component 7 is connected to a movable clip body 8. The front end of the movable clip body 8 is provided with a second clamping part 9. The second clamping part 9 cooperates with the first clamping part 2 to block the vein.

[0038] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment uses an adjustment component to adjust the extension length of the movable clip body, thereby adjusting the clamping distance between the first clamping part and the second clamping part. Moreover, the clamping force is fixed, and medical staff can directly sense the degree of clamping during the adjustment process, resulting in better venous occlusion and greater ease of use.

[0039] In one embodiment, the front side wall of the fixed clamping part 1 is provided with a guide hole 10, and the movable clamping part 8 is disposed through the guide hole 10.

[0040] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment can achieve stable guidance of the moving clip body, avoiding its deviation from affecting the clamping effect.

[0041] In one embodiment, the clamping part 1, the first clamping part 2, and the connecting part 3 are all made of medical-grade polyvinyl chloride, and the three are integrally molded.

[0042] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment has a simpler structure, is easier to produce, effectively reduces costs, and is also convenient for reuse after sterilization.

[0043] In one embodiment, a connecting protrusion 11 is provided on the inner side of the first clamping part 2, and a flexible anti-slip pad layer 12 is connected to the connecting protrusion 11. The flexible anti-slip pad layer 12 is tightly connected to the connecting protrusion 11.

[0044] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment has a flexible, non-slip pad that can be used once, making it safer and easier to replace.

[0045] As one implementation method, the flexible anti-slip pad layer 12 is made of medical-grade silicone material, and its surface is provided with anti-slip texture.

[0046] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment has anti-slip texture that can better achieve the clamping effect and prevent slippage.

[0047] In one embodiment, the adjustment component 7 includes a slider 71, a receiving groove 72 is provided in the slider 71, a button 73 is provided telescopically in the receiving groove 72, teeth 74 are provided on both sides of the button 73, the teeth 74 cooperate with the limiting teeth 6, and a spring 75 is provided between the button 73 and the slider 71.

[0048] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment allows the teeth to disengage from the limiting teeth when the button is pressed, at which point the slider can slide freely to adjust the tightness of the clamp. When the button is released, the clip quickly floats up under the action of the spring, thereby keeping the teeth within the limiting teeth and achieving the effect of clamping and fixing.

[0049] As one implementation, the surface of the slider 71 is provided with a drag-reducing coating.

[0050] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment has a drag-reducing coating that effectively reduces the coefficient of friction, thereby improving the smoothness of adjustment.

[0051] In one embodiment, the movable clamping part 8 includes a slide bar 81, one end of which is connected to the slider 71, and the other end of which is connected to the second clamping part 9 through a clamping groove 82.

[0052] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment can also have its second clamping part replaced as needed to adapt to different venous vessel sizes, improve the occlusion effect, and enhance safety.

[0053] In one embodiment, the surface of the second clamping portion 9 has an arc-shaped structure.

[0054] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment will not damage the veins even when clamped, thus providing a protective effect.

[0055] As one embodiment, it also includes an elastic sheath, which is fitted over the outside of the fixed clamping part 1 and has a fluorescent strip on its surface.

[0056] The non-traumatic venous occlusion clip for organ transplantation provided in this embodiment can prevent blood from entering the internal organs during the operation, making disinfection and cleaning more convenient. At the same time, the fluorescent strip makes it easy to find the occlusion clip, making it convenient to retrieve the clip after the operation and preventing it from being missed.

[0057] This invention provides a non-traumatic venous occlusion clip for organ transplantation. Its usage is as follows: When venous occlusion is required, first press the button. At this time, the teeth disengage from the limiting teeth, and the slider can be pushed to slide freely, thereby adjusting the tightness of the clamp. When the button is released, it quickly rises under the action of the spring, thus limiting the teeth within the limiting teeth, achieving the effect of clamping and fixation. The extension length of the moving clamp body is adjusted using the adjustment component, thereby adjusting the clamping distance between the first clamping part and the second clamping part. The clamping force is fixed, allowing medical personnel to directly perceive the degree of clamping during adjustment, resulting in better venous occlusion and greater ease of use.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A non-traumatic vein occlusion clip for organ transplantation, characterized in that: The device includes a fixed clamping part (1), the front end of which is provided with a first clamping part (2), the first clamping part (2) and the fixed clamping part (1) are connected by a connecting part (3), and the connecting part (3) is provided with a clamping port (4) facing each other. The fixed clamping part (1) is provided with a sliding groove (5), the upper sides of the sliding groove (5) are provided with limiting teeth (6), the sliding groove (5) is slidably provided with an adjusting component (7), the adjusting component (7) cooperates with the limiting teeth (6), the front end of the adjusting component (7) is connected to a movable clamping part (8), the front end of the movable clamping part (8) is provided with a second clamping part (9), the second clamping part (9) cooperates with the first clamping part (2) to block the vein.

2. The non-traumatic venous occlusion clip for organ transplantation according to claim 1, characterized in that: The front side wall of the fixed clamping part (1) is provided with a guide hole (10), and the movable clamping part (8) is provided through the guide hole (10).

3. The non-traumatic venous occlusion clip for organ transplantation according to claim 1, characterized in that: The fixed clamping part (1), the first clamping part (2) and the connecting part (3) are all made of medical-grade polyvinyl chloride, and the three are integrally molded.

4. The non-traumatic venous occlusion clip for organ transplantation according to claim 1, characterized in that: The first clamping part (2) has a connecting protrusion (11) on its inner side. A flexible anti-slip pad (12) is connected to the connecting protrusion (11). The flexible anti-slip pad (12) is tightly connected to the connecting protrusion (11).

5. The non-traumatic venous occlusion clip for organ transplantation according to claim 4, characterized in that: The flexible anti-slip pad layer (12) is made of medical-grade silicone material, and its surface is provided with anti-slip texture.

6. The non-traumatic venous occlusion clip for organ transplantation according to claim 1, characterized in that: The adjustment component (7) includes a slider (71), a receiving groove (72) is provided in the slider (71), a button (73) is provided in the receiving groove (72) and is retractably provided in the receiving groove (72), teeth (74) are provided on both sides of the button (73), the teeth (74) cooperate with the limiting teeth (6), and a spring (75) is provided between the button (73) and the slider (71).

7. The non-traumatic venous occlusion clip for organ transplantation according to claim 6, characterized in that: The surface of the slider (71) is provided with a drag-reducing coating.

8. The non-traumatic venous occlusion clip for organ transplantation according to claim 6, characterized in that: The movable clamping part (8) includes a slide rod (81), one end of which is connected to the slider (71), and the other end of which is connected to the second clamping part (9) through a clamping groove (82).

9. The non-traumatic venous occlusion clip for organ transplantation according to claim 8, characterized in that: The surface of the second clamping part (9) is an arc-shaped structure.

10. The non-traumatic venous occlusion clip for organ transplantation according to any one of claims 1-9, characterized in that: It also includes an elastic sheath, which is fitted over the outside of the fixed clamp part (1) and has a fluorescent strip on its surface.

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