Novel metal blood vessel blocking clamp
By designing a new metal vascular blocking clip with suitable structures, including occlusal patterns and T-shaped bulges, the problems of insufficient clamping force and vascular damage in the prior art are solved, and a more stable and safe vascular blocking operation is achieved. Reduces the risk and cost of surgery.
Patent Information
- Application Number
- CN202420720715.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-09
AI Technical Summary
In clinical surgery, existing metal vascular blockade clamps have problems such as insufficient clamping force, small blood vessel contact surface, excessively long or misaligned clamp arms, which increases the risk of surgery.
A new type of metal vascular blocking clip including a first chuck, a second chuck, a limit arm, a limit bar, a tail shank and an elastic reduction plate was designed to increase blood vessels through appropriate occlusal and T-shaped bulge structures. Contact area prevents chuck from being offset, and uses elastic reset tab to achieve stable clamping action.
It improves the stability and safety of vascular blockade, reduces the risk of vascular damage, is suitable for systemic peripheral arteries and veins, and is simple in structure and low in cost, and does not require special clamping tools.
Smart Images
Figure CN222341254U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a novel metal blood vessel blocking clamp which is suitable for temporarily blocking arteries and veins supplying blood to organs. Background Art
[0002] At present, vascular clamps are often used in clinical surgical operations to temporarily block arteries and veins that supply blood to organs. Currently, there are many forms of metal vascular clamps (such as artery clamps) commonly used in clinical surgery. There are obvious differences in the clamping strength of metal vascular clamps, the contact surface with the blood vessel, the shape of the two clamps, and the opening and closing methods of metal vascular clamps. Among them, the commonly used artery clamps have many defects: the small contact surface between the artery clamp and the blood vessel leads to excessive local pressure, which can easily damage the arterial wall and the endothelium; the clamp arm of the artery clamp is too long and is not suitable for intra-abdominal operation; the two clamp arms of the artery clamp are often misaligned, resulting in a shear-like shape, which easily creates the risk of cutting the blood vessel wall; the artery clamp lacks a matching clamping tool, which makes it difficult to operate during surgery, and the clamping action is unstable, increasing the risk of surgery. Utility Model Content
[0003] The purpose of the utility model is to provide a new type of metal blood vessel blocking clip to solve the above problems in the prior art.
[0004] The above-mentioned purpose of the utility model is achieved by the following technical means:
[0005] A novel metal blood vessel blocking clamp comprises a first clamp and a second clamp, and also comprises a limiting arm, a limiting strip, a first tail handle, and a second tail handle. The first clamp is located directly above the second clamp, and the first tail handle is located above the second tail handle. A strip-shaped limiting hole is provided on the limiting arm, and the front end of the limiting strip passes through the strip-shaped limiting hole and is connected to the rear end of the first clamp, the rear end of the limiting strip is connected to the front end of the second tail handle, the front end of the limiting arm is connected to the rear end of the second clamp, the rear end of the limiting arm is connected to the front end of the first tail handle, and the rear part of the first tail handle is fixedly connected to the rear part of the second tail handle.
[0006] As mentioned above, the width of the limiting strip is matched with the width of the strip-shaped limiting hole.
[0007] As described above, the first tail handle includes a first elastic reset piece and a first connecting tail, the rear end of the first elastic reset piece is connected to the first connecting tail, the second tail handle includes a second elastic reset piece and a second connecting tail, the rear end of the second elastic reset piece is connected to the second connecting tail, the front end of the first elastic reset piece is connected to the rear end of the limit arm, the front end of the second elastic reset piece is connected to the rear end of the limit strip, and the front ends of the first elastic reset piece and the second elastic reset piece are relatively open.
[0008] As mentioned above, the first connection tail and the second connection tail are surface-connected.
[0009] As described above, the front end of the first elastic return piece and the outer side surface of the front end of the second elastic return piece are provided with symmetrically positioned T-shaped protrusions.
[0010] As mentioned above, the inner side surfaces of the first chuck and the second chuck are provided with bite lines.
[0011] As mentioned above, the front ends of the first chuck and the second chuck are both in arc shape.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) In the engaged state, the first and second clamps of the utility model have a large contact area with the blood vessel, the local pressure is small, and the damage to the arterial wall and the intima is small;
[0014] (2) The overall length of the utility model and the length of the first clamp and the second clamp are suitable for peripheral arteries and veins throughout the body, and will not damage tissues or organs other than blood vessels due to the overall length or the length of the first clamp and the second clamp being too long;
[0015] (3) The strip-shaped limiting hole provided in the limiting arm of the utility model can prevent the limiting strip from shifting sideways, thereby preventing the first clamp and the second clamp from offsetting, avoiding the problem that the first clamp and the second clamp may cut the blood vessel wall or shear the blood vessel due to offset, thereby improving the stability of the utility model in the occlusal state and during the opening process;
[0016] (4) The first elastic reset sheet and the second elastic reset sheet of the utility model are provided with T-shaped protrusions, which are suitable for clamping the utility model with a common vascular ligation clip applier in an operating room. The clamping action is stable, and no sliding or lateral swing occurs. There is no need to reconfigure and purchase a special vascular clip applier, and the utility model has universal applicability;
[0017] (5) Compared with imported complete artery clamps, the utility model has a simple and practical structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model in the occlusal state;
[0019] Figure 2 It is a structural schematic diagram of the utility model in an open state;
[0020] Figure 3 It is a side view of the utility model in the occlusal state;
[0021] Figure 4 It is a side view of the utility model in the open state;
[0022] Figure 5 It is a top view of the utility model;
[0023] Figure 6 This is a schematic diagram of using the utility model to block a blood vessel;
[0024] 1—first chuck; 2—second chuck; 3—limiting arm; 4—limiting bar; 5—first tail handle; 6—second tail handle; 7—first elastic reset sheet; 8—first connecting tail; 9—second elastic reset sheet; 10—second connecting tail. DETAILED DESCRIPTION
[0025] In order to facilitate those skilled in the art to understand and implement the present invention, the present invention is further described in detail below in conjunction with embodiments. The embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.
[0026] Embodiment 1:
[0027] like Figures 1 to 6 As shown, a novel metal blood vessel blocking clamp comprises a first clamp 1, a second clamp 2, a limiting arm 3, a limiting strip 4, a first tail handle 5, and a second tail handle 6. The first clamp 1 is located directly above the second clamp 2, and the first tail handle 5 is located above the second tail handle 6. A strip-shaped limiting hole is provided on the limiting arm 3, and the length direction of the strip-shaped limiting hole is the same as the length direction of the limiting arm 3. The width of the limiting strip 4 is adapted to the width of the strip-shaped limiting hole, so that the limiting strip 4 will not move sideways (i.e., displacement occurs in the width direction of the strip-shaped limiting hole). The front end of the limiting strip 4 passes through the strip-shaped limiting hole and is connected to the rear end of the first clamp 1, the rear end of the limiting strip 4 is connected to the front end of the second tail handle 6, the front end of the limiting arm 3 is connected to the rear end of the second clamp 2, the rear end of the limiting arm 3 is connected to the front end of the first tail handle 5, and the rear part of the first tail handle 5 and the rear part of the second tail handle 6 are fixedly connected.
[0028] The strip-shaped limiting hole of the limiting arm 3 is used to limit the position of the limiting strip 4 so that the limiting strip 4 will not shift sideways, thereby allowing the lower surface of the first clamp 1 and the upper surface of the second clamp 2 to fully engage with each other, preventing the first clamp 1 and the second clamp 2 from offsetting, avoiding the problem that the offset of the first clamp 1 and the second clamp 2 may cut the blood vessel wall or shear the blood vessel, and improving the stability of the utility model in the engaged state and during the opening process.
[0029] The first tail handle 5 includes a first elastic reset piece 7 and a first connecting tail 8, the rear end of the first elastic reset piece 7 is connected to the first connecting tail 8, the second tail handle 6 includes a second elastic reset piece 9 and a second connecting tail 10, the rear end of the second elastic reset piece 9 is connected to the second connecting tail 10, the first connecting tail 8 and the second connecting tail 10 are fixedly connected, the first connecting tail 8 and the second connecting tail 10 are surface connected, the front end of the first elastic reset piece 7 is connected to the rear end of the limit arm 3, the front end of the second elastic reset piece 9 is connected to the rear end of the limit strip 4, and the front end of the first elastic reset piece 7 and the front end of the second elastic reset piece 9 are relatively open outward.
[0030] The front end of the first elastic reset sheet 7 and the front end of the second elastic reset sheet 9 are both opened outward, so that when the first elastic reset sheet 7 and the second elastic reset sheet 9 are not pressed, the first clamp 1 and the second clamp 2 can be tightly engaged with each other; and after the pressure on the first elastic reset sheet 7 and the second elastic reset sheet 9 is released, the front end of the first elastic reset sheet 7 and the front end of the second elastic reset sheet 9 are reset and opened, which can drive the first clamp 1 and the second clamp 2 to move toward each other (that is, Figure 2 In the embodiment, the first clamp 1 moves downward and the second clamp 2 moves upward), and finally the first clamp 1 and the second clamp 2 are engaged with each other to block the blood vessel.
[0031] The front end of the first elastic reset plate 7 and the outer side surface of the front end of the second elastic reset plate 9 are provided with symmetrically positioned T-shaped protrusions, which are convenient for the vascular ligation clamp applier commonly used in operating rooms to clamp the utility model. The clamping action is stable, no sliding or lateral swing occurs, and there is no need to reconfigure and purchase a special vascular clamp applier, so the utility model has universal applicability.
[0032] The first clamp 1 and the second clamp 2 are of the same size, and are both narrow in front and wide in the back. The front ends of the first clamp 1 and the second clamp 2 are both arc-shaped, which can avoid damaging other surrounding blood vessels when moving the utility model and blocking blood vessels.
[0033] The inner side surfaces of the first clamp 1 and the second clamp 2 are provided with bite lines, which can make the first clamp 1 and the second clamp 2 fit closely together, so as to better block the blood vessel.
[0034] When using the utility model, first use the vascular ligation clip applier to clamp the T-shaped protrusion of the first elastic reset sheet 7 and the T-shaped protrusion of the second elastic reset sheet 9, and then press the vascular ligation clip applier to make the front end of the first elastic reset sheet 7 and the front end of the second elastic reset sheet 9 relatively close (i.e. Figure 2In the process, the first elastic reset sheet 7 moves downward and the second elastic reset sheet 9 moves upward), driving the first clamp 1 and the second clamp 2 to open, and then the utility model is moved so that the blood vessel to be blocked is between the first clamp 1 and the second clamp 2, and finally the pressure on the first elastic reset sheet 7 and the second elastic reset sheet 9 is released, and the reset tension of the first elastic reset sheet 7 and the second elastic reset sheet 9 is used to drive the first clamp 1 and the second clamp 2 to bite, thereby blocking the blood vessel; when it is necessary to release the blockage of the blood vessel, the first elastic reset sheet 7 and the second elastic reset sheet 9 are pressed again, thereby driving the first clamp 1 and the second clamp 2 to open, thereby releasing the blockage of the blood vessel, and finally the utility model is removed from the blood vessel.
[0035] Preferably, the width f of the widest part of the rear end of the first chuck 1 (or the second chuck 2) is 6 mm, the radius r of the arc at the front end of the first chuck 1 (or the second chuck 2) is 1.5 mm, the length b of the first chuck 1 (or the second chuck 2) is 20 mm, the projection length c of the limiting arm 3 (or the limiting strip 4) in the length direction of the new metal blood vessel blocking clamp is 7 mm, the projection length d of the first tail handle 5 (or the second tail handle 6) in the length direction of the new metal blood vessel blocking clamp is 20 mm, the distance e between the front end arc of the first chuck 1 and the front end arc of the second chuck 2 in the open state is 11 mm, and the total thickness a of the first chuck 1 and the second chuck 2 in the engaged state is 3 mm.
[0036] The width f of the widest part of the first clamp 1 (or the second clamp 2) is 6 mm, so that in the occlusal state of the utility model, the first clamp 1 and the second clamp 2 have a large contact area with the blood vessel, the local pressure is small, and the damage to the arterial wall and the inner membrane is small; the overall length of the utility model (i.e., b+c+d) and the length of the first clamp 1 and the second clamp 2 are suitable for peripheral arteries and veins throughout the body, and will not damage tissues or organs other than blood vessels due to the excessive overall length or the length of the first clamp 1 and the second clamp 2.
[0037] The utility model has a simple and practical structure and low cost.
[0038] The first chuck 1 , the second chuck 2 , the limiting arm 3 , the limiting bar 4 , the first tail handle 5 , and the second tail handle 6 are all made of metal, preferably stainless steel.
[0039] It should be noted that the embodiments described in the present invention are merely examples of the spirit of the present invention. Those skilled in the art of the present invention may make various modifications or additions to the described embodiments or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.
Claims
1. A novel metal vascular blocking clamp, comprising a first clamp (1) and a second clamp (2), characterized in that: The invention also comprises a limiting arm (3), a limiting strip (4), a first tail handle (5), and a second tail handle (6); the first clamp (1) is located directly above the second clamp (2); the first tail handle (5) is located above the second tail handle (6); a strip-shaped limiting hole is provided on the limiting arm (3); the front end of the limiting strip (4) passes through the strip-shaped limiting hole and is connected to the rear end of the first clamp (1); the rear end of the limiting strip (4) is connected to the front end of the second tail handle (6); the front end of the limiting arm (3) is connected to the rear end of the second clamp (2); the rear end of the limiting arm (3) is connected to the front end of the first tail handle (5); and the rear part of the first tail handle (5) and the rear part of the second tail handle (6) are fixedly connected.
2. According to claim 1, a new type of metal vascular blocking clip is characterized in that: The width of the limiting strip (4) is adapted to the width of the strip-shaped limiting hole.
3. According to claim 2, a new type of metal vascular blocking clip is characterized in that: The first tail handle (5) comprises a first elastic reset sheet (7) and a first connecting tail (8), the rear end of the first elastic reset sheet (7) is connected to the first connecting tail (8), the second tail handle (6) comprises a second elastic reset sheet (9) and a second connecting tail (10), the rear end of the second elastic reset sheet (9) is connected to the second connecting tail (10), the front end of the first elastic reset sheet (7) is connected to the rear end of the limiting arm (3), the front end of the second elastic reset sheet (9) is connected to the rear end of the limiting strip (4), and the front end of the first elastic reset sheet (7) and the front end of the second elastic reset sheet (9) are relatively open.
4. According to claim 3, a new type of metal vascular blocking clip is characterized in that: The first connecting tail (8) and the second connecting tail (10) are connected in a surface manner.
5. According to claim 4, the novel metal vascular blocking clip is characterized in that: The front end of the first elastic return piece (7) and the outer side surface of the front end of the second elastic return piece (9) are provided with symmetrically positioned T-shaped protrusions.
6. A novel metal vascular blocking clip according to claim 5, characterized in that: The inner side surfaces of the first clamp (1) and the second clamp (2) are provided with bite lines.
7. A novel metal vascular blocking clip according to claim 6, characterized in that: The front ends of the first clamp (1) and the second clamp (2) are both arc-shaped.