Self-adaptive Hadamard clip

Abstract

The utility model relates to a self-adaptive Hadoop clip, belongs to the technical field of medical equipment, and solves the problems that the Hadoop clip in the prior art is poor in adaptability to different blood vessels, and the clamping pressure cannot be adjusted in real time. The device comprises a first arm, a second arm, a rotating shaft and a spring, the first arm and the second arm are oppositely arranged, are hinged to the rotating shaft and are crossed at the rotating shaft; the first arm and the second arm can rotate around the rotating shaft; the spring is arranged between the tail ends of the first arm and the second arm; the spring is provided with a spring adjusting structure; the spring adjusting structure is arranged at the tail ends of the first arm and the second arm. According to the utility model, the clamping pressure of the Hadoop clip can be adjusted in real time and cannot be too large or too small.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to an adaptive pug clip. Background Technology

[0002] In tumor resection surgery, a surgical instrument called a pug clamp is frequently used to clamp blood vessels and block blood flow. The pug clamp applies constant pressure to the vessel wall. However, the pressure varies depending on the patient's blood vessel size; too high a pressure can damage the vessel, while too low a pressure will be ineffective. Current pug clamps have poor adaptability to different blood vessels and cannot adjust the clamping pressure in real time. Utility Model Content

[0003] Based on the above analysis, the present invention aims to provide an adaptive pug clip to solve the problem that existing pug clips have poor adaptability to different blood vessels and cannot adjust the clamping pressure in real time.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] An adaptive pug clip includes a first arm, a second arm, a pivot, and a spring;

[0006] The first arm and the second arm are arranged opposite to each other, and the first arm and the second arm are hinged to the pivot and cross at the pivot; the first arm and the second arm are capable of rotating around the pivot.

[0007] The spring is disposed between the tail ends of the first arm and the second arm;

[0008] The spring is provided with a spring adjustment structure; the spring adjustment structure is located at the tail end of the first arm and the second arm; the spring adjustment structure is used to adjust the extension and retraction length of the spring.

[0009] Furthermore, the spring adjustment structure includes a first spring adjustment structure; the first spring adjustment structure includes a screw and a nut.

[0010] Furthermore, the screw is connected to the first arm or the second arm, and the nut is sleeved on the screw;

[0011] One end of the spring is disposed on the nut, and the other end of the spring is connected to the second arm or the first arm.

[0012] Furthermore, the spring adjustment structure also includes a second spring adjustment structure; the second spring adjustment structure includes a first slider and a slider rod.

[0013] Furthermore, the first slider is sleeved on the slide rod, and the first slider can slide on the slide rod; the slide rod is connected to the first arm or the second arm;

[0014] One end of the spring is disposed on the slider, and the other end of the spring is connected to the second arm or the first arm.

[0015] Furthermore, the spring adjustment structure also includes a third spring adjustment structure; the third spring adjustment structure includes a second slider and a slide rail.

[0016] Furthermore, the slide rail is disposed on the inner rear end of the first arm and the second arm; the slide rail is disposed along the length direction of the first arm and the second arm; the second slider is disposed inside the slide rail and is capable of sliding inside the slide rail;

[0017] One end of the spring is disposed on the second slider of the first arm, and the other end of the spring is disposed on the second slider of the second arm.

[0018] Furthermore, the outer wall surface of the slide rod is provided with a groove in the circumferential direction, and the inner wall surface of the first slider is provided with a protrusion. The protrusion can be embedded in the groove, so that the first slider moves along the groove.

[0019] Furthermore, it also includes teeth; the teeth are disposed at the front ends of the first arm and the second arm; the teeth are used to disperse the clamping stress of the clamp on the blood vessel.

[0020] Furthermore, it also includes a pressure sensor embedded between the teeth, the pressure sensor being used to provide real-time feedback on blood pressure in the clamped blood vessel.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) This utility model is provided with a spring adjustment structure so as to adjust the pressure of blood vessels of different sizes by adjusting the length of the spring.

[0023] (2) Compared with the prior art, the present invention has a first spring adjustment structure and a second spring adjustment structure on the pug clip. The pressure feedback from the pressure sensor is greater than zero or less than zero to determine whether to increase the pressure of the clip on the blood vessel. The spring length is changed by the movement of the nut or slider to increase or decrease the pressure of the clip on the blood vessel so that the blood pressure is zero. The clamping pressure of the clip on the blood vessel just prevents blood flow through the blood vessel and will not cause damage to the blood vessel due to excessive pressure, thus improving the adaptability of the clip to the blood vessel.

[0024] (3) Compared with the prior art, this utility model has a double slider structure at both ends of the spring. When the blood vessel is thicker, a greater clamping pressure is required. According to the value of the pressure sensor, the second slider is moved to the rear end, making the rear lever arm longer and increasing the leverage ratio, so that the front end of the clamp generates greater pressure. When the blood vessel is thinner, a smaller clamping pressure is required. According to the value of the pressure sensor, the second slider is moved to the front end, making the rear lever arm shorter and decreasing the leverage ratio, so that the front end of the clamp generates less pressure. By changing the leverage ratio of the front and rear ends of the first and second arms at different positions of the second slider in the slide rail, the clamping pressure on the blood vessel at the front end is changed, which improves the flexibility of medical staff in operation, the adaptability to different blood vessel sizes, and the stability of the clamp opening and closing, and reduces the situation of blood vessel damage or insecure clamping caused by inappropriate pressure.

[0025] (4) In order to reduce the damage caused by excessive pressure on blood vessels, the front ends of the first and second arms of this utility model are provided with multiple teeth to disperse the clamping stress of the clamp on the blood vessels.

[0026] (5) The pressure sensor of this utility model is embedded between the teeth and can provide real-time feedback on the blood pressure in the clamped blood vessel. The spring adjustment structure can adjust the spring length according to the information transmitted from the pressure sensor, thereby realizing real-time adjustment of the pressure applied to the front end of the clamp to maintain the blood pressure feedback at the front end of the clamp at zero.

[0027] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0028] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0029] Figure 1 This is a schematic diagram of the pug clip in Example 1;

[0030] Figure 2 This is a schematic diagram of the screw and nut structure of the Pug clip in Example 2;

[0031] Figure 3 This is an enlarged structural diagram of the screw and nut structure in Example 2;

[0032] Figure 4 This is a schematic diagram of the nut structure in Example 2;

[0033] Figure 5 This is a schematic diagram of the pug clip structure of the first slider and slide bar structure in Embodiment 3;

[0034] Figure 6 This is a schematic diagram of the first slider and slide bar structure in Embodiment 3;

[0035] Figure 7 This is a schematic diagram of the structure of the first slider in Example 3;

[0036] Figure 8 This is a schematic diagram of the structure of the pug clip in Example 4.

[0037] Figure label:

[0038] 1-First arm, 2-Second arm, 3-Rotating shaft, 4-Spring, 41-First spring adjustment structure, 411-First fixing block, 412-Screw, 413-Nut, 4131-Spring mounting slot, 4132-Spring mounting block, 42-Second spring adjustment structure, 421-Second fixing block, 422-First slider, 4221-Protrusion, 423-Slide rod, 4231-Slide groove, 42311-Positioning hole, 43-Third spring adjustment structure, 431-Slide rail, 432-Second slider, 5-Tooth, 6-Pressure sensor. Detailed Implementation

[0039] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0040] Example 1

[0041] A specific embodiment of this utility model is as follows: Figure 1 As shown, a pug clip is disclosed, including a first arm 1, a second arm 2, a pivot 3, and a spring 4.

[0042] The first arm 1 and the second arm 2 are positioned opposite each other. Both arms 1 and 2 are made of medical-grade stainless steel to ensure biocompatibility and mechanical performance. The front ends of both arms 1 and 2 are curved to conform to the shape of the blood vessel and reduce local damage.

[0043] The rear ends of the first arm 1 and the second arm 2 are hinged to the pivot 3 and cross at the pivot 3. Both the first arm 1 and the second arm 2 can rotate around the pivot 3, and the front ends of the first arm 1 and the second arm 2 can open and close by opening and closing the rear ends of the first arm 1 and the second arm 2.

[0044] In order to facilitate control of the opening and closing speed of the first arm 1 and the second arm 2, so as to avoid damage to blood vessels due to excessively rapid clamping action, and to reduce the hand burden of medical staff during operation, springs 4 are provided at the rear ends of the first arm 1 and the second arm 2.

[0045] One end of the spring 4 is positioned between the tail ends of the first arm 1 and the second arm 2. For ease of operation, the length direction of the spring 4 is perpendicular to the length direction of the first arm 1 and the second arm 2.

[0046] Furthermore, to reduce excessive pressure on the blood vessels and prevent damage, the front ends of the first arm 1 and the second arm 2 are provided with multiple teeth 5 to distribute the clamping stress on the blood vessels. It should be noted that the teeth 5 are non-damaging teeth.

[0047] Pressure sensor 6 is embedded between teeth 5 and can provide real-time feedback on blood pressure in the clamped blood vessel.

[0048] Example 2

[0049] The difference between this embodiment and embodiment 1 is that, in order to avoid excessive pressure on the thinner blood vessels and causing damage, this embodiment is equipped with a spring adjustment structure to adjust the pressure on blood vessels of different thicknesses by adjusting the length of the spring 4.

[0050] The spring adjustment structure is located at the tail end of the first arm 1 and the second arm 2. The spring adjustment structure can adjust the length of the spring 4 according to the information transmitted from the pressure sensor 6, thereby realizing real-time adjustment of the pressure applied to the front end of the clamp to maintain the blood pressure feedback at the front end of the clamp at zero.

[0051] In this embodiment, the spring adjustment structure is the first spring adjustment structure 41. For example... Figure 2 and Figure 3 As shown, the first spring adjustment structure 41 includes a first fixing block 411, a screw 412, and a nut 413. The first fixing block 411 is disposed on the first arm 1 or the second arm 2. One end of the screw 412 is screwed to the first fixing block 411, and the other end is fitted with a nut 413. The nut 413 can move on the screw 412.

[0052] One end of the spring 4 is fixed to the second arm 2 or the first arm 1 without the first fixing block 411, and the other end is fixed to the nut 413, allowing it to lengthen or shorten as the nut 413 moves. Further, as... Figure 4 As shown, the end of the nut 413 is provided with a spring mounting groove 4131, and the end of the spring 4 is provided with a spring mounting block 4132. The spring mounting block 4132 can move within the spring mounting groove 4131.

[0053] If the sensor reports blood pressure above zero, nut 413 rotates and moves toward spring 4, increasing the pressure of the clamp on the blood vessel; if the sensor reports blood pressure below zero, nut 413 rotates in the opposite direction, reducing the pressure of the clamp on the blood vessel.

[0054] Compared with the prior art, this embodiment has a first spring adjustment structure 41 on the pug clip. The pressure sensor 6 provides feedback that the pressure is greater than zero or less than zero, which determines whether to increase the pressure of the clip on the blood vessel. The movement of the nut 413 changes the length of the spring 4, thereby increasing or decreasing the pressure of the clip on the blood vessel. This achieves zero blood pressure, so that the clamping pressure of the clip on the blood vessel just stops the blood flow through the blood vessel, and does not cause damage to the blood vessel due to excessive pressure, thus improving the adaptability of the clip to the blood vessel.

[0055] Example 3

[0056] In this embodiment, the spring adjustment structure is a second spring adjustment structure 42 with a slider and slide bar 423 structure, replacing the first spring adjustment structure 41 in embodiment 2. Figure 5 and Figure 6 As shown, the second spring adjustment structure 42 includes a second fixing block 421, a slide rod 423, and a first slider 422. The second fixing block 421 is disposed on the first arm 1 or the second arm 2, and the slide rod 423 is disposed on the second fixing block 421. A groove 4231 is provided circumferentially on the outer wall surface of the slide rod 423, and the first slider 422 is sleeved on the slide rod 423. Figure 7 As shown, the inner wall surface of the first slider 422 is provided with a protrusion 4221, which can be embedded in the slide groove 4231, so that the first slider 422 can move along the slide groove 4231.

[0057] One end of the spring 4 is disposed on the second arm 2 or the first arm 1 without the second fixing block 421, and the other end is fixed to the first slider 422, so that the length can be changed as the first slider 422 moves.

[0058] If the sensor reports blood pressure higher than zero, the first slider 422 moves toward the spring 4, shortening the spring 4 and increasing the pressure of the clamp on the blood vessel; if the sensor reports blood pressure lower than zero, the first slider 422 moves toward the opposite direction of the spring 4, lengthening the spring 4 and reducing the pressure of the clamp on the blood vessel.

[0059] Furthermore, positioning holes 42311 are provided at intervals in the outer groove 4231 of the slide bar 423 for positioning the first slider 422 as it slides in the groove 4231.

[0060] Compared with the prior art, this embodiment has a second spring adjustment structure 42 on the pug clip. The pressure sensor 6 provides feedback that the pressure is greater than or less than zero, which determines whether to increase the pressure of the clip on the blood vessel. The movement of the first slider 422 changes the length of the spring 4, thereby increasing or decreasing the pressure of the clip on the blood vessel to achieve zero blood pressure. This ensures that the clamping pressure of the clip on the blood vessel just stops the blood flow through the blood vessel, and does not cause damage to the blood vessel due to excessive pressure, thus improving the adaptability of the clip to the blood vessel.

[0061] Example 4

[0062] The difference between this embodiment and embodiment 3 is that this embodiment is provided with a third spring adjustment structure 43 with a double slider structure to replace the second spring adjustment structure 42 of embodiment 3.

[0063] like Figure 8 As shown, the third spring adjustment structure 43 includes a second slider 432 and a slide rail. The slide rail is disposed on the inner edge of the first arm 1 and the second arm 2, and is arranged along the length direction of the first arm 1 and the second arm 2. The second slider 432 is disposed inside the slide rail 431 and can slide on the slide rail 431. It should be noted that the second slider 432 is made of elastic rubber.

[0064] One end of the spring 4 is fixed to the second slider 432 of the first arm 1, and the other end is fixed to the second slider 432 of the second arm 2.

[0065] In this embodiment, the length of the spring 4 is changed by altering the position of the second slider 432 within the slide rail 431. When the second slider 432 is positioned near the end of the slide rail 431 close to the rotating shaft 3, the length of the spring 4 is shortened; when the second slider 432 is positioned away from the rotating shaft 3, the length of the spring 4 is lengthened. The different positions of the second slider 432 determine different leverage ratios, thereby determining the pressure applied to the blood vessel by the first arm 1 and the second arm 2 at the front end.

[0066] When the blood vessel is thicker, a greater clamping pressure is required. Based on the value of pressure sensor 6, the second slider 432 is moved to the rear end, making the rear lever arm longer, increasing the leverage ratio, and generating greater pressure at the front end of the clamp. When the blood vessel is thinner, a smaller clamping pressure is required. Based on the value of pressure sensor 6, the second slider 432 is moved to the front end, making the rear lever arm shorter, decreasing the leverage ratio, and generating less pressure at the front end of the clamp.

[0067] Compared with the prior art, this embodiment has a double slider structure at both ends of the spring 4. By changing the lever ratio of the front end and the rear end of the first arm 1 and the second arm 2 at different positions in the slide rail 431 by the second slider 432, the clamping pressure of the front end on the blood vessel is changed, which improves the flexibility of medical staff in operation, adaptability to different blood vessel diameters and stability of clamp opening and closing, and reduces the situation of blood vessel damage or insecure clamping caused by improper pressure.

[0068] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adaptive pug clip, characterized in that, It includes a first arm (1), a second arm (2), a pivot (3), and a spring (4); The first arm (1) and the second arm (2) are arranged opposite to each other, the first arm (1) and the second arm (2) are hinged to the pivot (3) and cross at the pivot (3); the first arm (1) and the second arm (2) are able to rotate around the pivot (3); The spring (4) is disposed between the tail ends of the first arm (1) and the second arm (2); The spring (4) is provided with a spring adjustment structure; the spring adjustment structure is located at the tail end of the first arm (1) and the second arm (2), and the spring adjustment structure is used to adjust the extension length of the spring (4).

2. The adaptive pug clip according to claim 1, characterized in that, The spring adjustment structure includes a first spring adjustment structure (41); the first spring adjustment structure (41) includes a screw (412) and a nut (413).

3. The adaptive pug clip according to claim 2, characterized in that, The screw (412) is connected to the first arm (1) or the second arm (2), and the nut (413) is sleeved on the screw (412); One end of the spring (4) is disposed on the nut (413), and the other end of the spring (4) is connected to the second arm (2) or the first arm (1).

4. The adaptive pug clip according to claim 1, characterized in that, The spring adjustment structure further includes a second spring adjustment structure (42); the second spring adjustment structure (42) includes a first slider (422) and a slider (423).

5. The adaptive pug clip according to claim 4, characterized in that, The first slider (422) is sleeved on the slide rod (423), and the first slider (422) can slide on the slide rod (423); the slide rod (423) is connected to the first arm (1) or the second arm (2); One end of the spring (4) is disposed on the first slider (422), and the other end of the spring (4) is connected to the second arm (2) or the first arm (1).

6. The adaptive pug clip according to claim 1, characterized in that, The spring adjustment structure further includes a third spring adjustment structure (43); the third spring adjustment structure (43) includes a second slider (432) and a slide rail (431).

7. The adaptive pug clip according to claim 6, characterized in that, The slide rail (431) is disposed on the inner side of the rear end of the first arm (1) and the second arm (2); the slide rail (431) is disposed along the length direction of the first arm (1) and the second arm (2); the second slider (432) is disposed inside the slide rail (431) and the second slider (432) can slide inside the slide rail (431); One end of the spring (4) is disposed on the second slider (432) of the first arm (1), and the other end of the spring (4) is disposed on the second slider (432) of the second arm (2).

8. The adaptive pug clip according to claim 5, characterized in that, The outer wall surface of the slide bar (423) is provided with a groove (4231) in the circumferential direction, and the inner wall surface of the first slider (422) is provided with a protrusion (4221). The protrusion (4221) can be embedded in the groove (4231) so that the first slider (422) can move along the groove (4231).

9. The adaptive pug clip according to claim 1, characterized in that, It also includes teeth (5); the teeth (5) are disposed at the front end of the first arm (1) and the second arm (2); the teeth (5) are used to disperse the clamping stress of the clamp on the blood vessel.

10. The adaptive pug clip according to claim 9, characterized in that, It also includes a pressure sensor (6), which is embedded between the teeth (5); the pressure sensor (6) is used to provide real-time feedback on the blood pressure in the clamped blood vessel.

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