Vascular clamp, hemostasis mechanism and hemostasis method

Abstract

The invention relates to a vascular clamp, a hemostasis mechanism and a hemostasis method.The vascular clamp comprises a first clamping arm, a second clamping arm and a third clamping arm, a first clamping groove and a puncturing part are arranged at one end of the first clamping arm, and the puncturing part comprises a puncturing end; a clamping space is formed between the second clamping arm and the first clamping arm, the puncturing end is located on the edge, close to the clamping space, of the puncturing part, a protruding block is arranged at the end of the second clamping arm, and the protruding block can be connected with the first clamping groove in a clamped mode; the connecting piece is located at one end of the first clamping arm and one end of the second clamping arm, the first clamping arm and the second clamping arm can move towards each other, the connecting piece comprises a clamping groove and a clamping block, the clamping block is located at the end of the first clamping arm, and the connecting piece is located at the other end of the first clamping arm. The clamping groove is located in the edge of the clamping block and communicates with the clamping space. According to the vascular clamp, the hemostasis mechanism and the hemostasis method, blood leakage of blood vessels can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hemostasis structures, and in particular to a vascular clamp, a hemostasis mechanism and a hemostasis method. Background Art

[0002] A hemostatic vascular clamp is a surgical medical device used to achieve hemostasis by clamping blood vessels during surgical operations. Currently, a vascular clamp is usually composed of two clamping arms, and the self-locking structure at the ends of the two clamping arms is used to clamp the blood vessels between the two clamping arms, thereby achieving a hemostatic function. The tail of the existing vascular clamp is provided with a hole. For example, the invention patent with publication number CN103892884B discloses a metal vascular clamp that can be directionally degraded and absorbed and a preparation method thereof. The vascular clamp is provided with an O-shaped structure at the tail, which facilitates the clamping action of the upper arm and the lower arm. In the process of clamping a blood vessel with an existing vascular clamp, the blood vessel may slip into the hole at the tail of the vascular clamp, resulting in the blood vessel not being clamped after the vascular clamp completes the clamping action, which in turn causes the blood vessel to continue to leak blood and the vascular clamp fails to stop bleeding. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a vascular clamp, a hemostatic mechanism and a hemostatic method, which can prevent blood vessel leakage.

[0004] In order to solve the above technical problems, the present invention provides a vascular clamp, including: a first clamping arm, one end of the first clamping arm is provided with a first clamping groove and a puncture part, and the puncture part includes a puncture end; a second clamping arm, a clamping space is formed between the second clamping arm and the first clamping arm, and the puncture end is located at the edge of the puncture part close to the clamping space, and the end of the second clamping arm is provided with a protrusion, and the protrusion can be engaged with the first clamping groove; a connecting member, the connecting member is located at one end of the first clamping arm and the second clamping arm, the first clamping arm and the second clamping arm can move in a direction approaching each other, the connecting member includes a clamping groove and a clamping block, the clamping block is located at the end of the first clamping arm, and the clamping groove is located at the edge of the clamping block and is connected to the clamping space.

[0005] In one embodiment of the present invention, the clamping block is cylindrical, and the clamping groove is arranged along the circumference of the clamping block.

[0006] In one embodiment of the present invention, the protrusion also includes a guide surface, and the end of the first clamping arm can slide relative to the guide surface. An accommodating space is formed between the protrusion and the clamping side of the second clamping arm, and the end of the first clamping arm can be located in the accommodating space.

[0007] In one embodiment of the present invention, the width of the puncture portion gradually decreases toward the clamping space.

[0008] In one embodiment of the present invention, the first clamping arm and the second clamping arm are both arc-shaped. When the vascular clamp is in a clamping state, the first clamping arm and the second clamping arm abut against each other.

[0009] In one embodiment of the present invention, the first slot is located on a side of the first clamping arm away from the clamping space, and a second slot is provided between the first slot and the puncturing end of the puncturing portion, and the protrusion can be engaged with the second slot.

[0010] The present invention also provides a hemostasis mechanism, comprising the above-mentioned vascular clamp and a driving member, wherein the driving member can be engaged with the first clamping arm and the second clamping arm, and the driving member can drive the first clamping arm and the second clamping arm to move in a direction approaching each other.

[0011] In one embodiment of the present invention, the driving member includes two driving arms hinged to each other, a first clamping arm is provided with a first clamping block, a second clamping arm is provided with a second clamping block, and a third clamping groove is provided at the end of the driving arm, and the third clamping grooves of the two driving arms are respectively clamped with the first clamping block and the second clamping block.

[0012] In one embodiment of the present invention, grooves are provided on opposite sides of the two driving arms, and a through hole is provided at the bottom of the groove.

[0013] The present invention also provides a hemostasis method, which uses the above-mentioned hemostasis mechanism to stop bleeding, including the following steps: S1: clamping the first clamping arm and the second clamping arm of the blood vessel clamp with the driving member; S2: moving the driving member so that the blood vessel to be clamped is located between the first clamping arm and the second clamping arm; S3: the driving member drives the first clamping arm and the second clamping arm to move in a direction approaching each other until the protrusion is clamped with the first slot.

[0014] The above technical solution of the present invention has the following advantages over the prior art:

[0015] The vascular clamp, hemostasis mechanism, and hemostasis method described in the present invention utilize a clamping groove and a clamping block in a connector to gradually reduce the width of the clamping groove as the first and second clamping arms move toward each other, thereby clamping the blood vessel even at the position of the clamping groove to achieve hemostasis and prevent bleeding. Furthermore, the puncture portion allows the puncture portion to puncture tissue and achieve clamping of the vascular clamp in a narrow surgical space. The engagement of the protrusion with the first clamping groove achieves relative fixation of the first and second clamping arms. The provision of a driver facilitates driving the vascular clamp to achieve clamping in a narrow surgical space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic structural diagram of a vascular clamp of the present invention in a clamping state;

[0018] Figure 2 It is a schematic diagram of the structure when the vascular clamp is in the open state;

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure from another angle;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure from another angle;

[0021] Figure 5 It is a schematic diagram of the assembly structure of the hemostasis mechanism;

[0022] Figure 6 It is a structural diagram of the driving arm;

[0023] Figure 7 yes Figure 6 Schematic diagram of the structure from another angle.

[0024] Explanation of the reference numerals in the specification: 1. first clamping arm; 2. second clamping arm; 3. connecting member; 4. driving member; 11. first clamping block; 12. first clamping slot; 13. second clamping slot; 14. puncturing portion; 15. puncturing end; 21. second clamping block; 22. protrusion; 23. guide surface; 31. clamping block; 32. connecting member; 33. clamping slot; 41. groove; 42. through hole; 43. third clamping slot. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0026] Reference Figures 1 to 4As shown, a vascular clamp of the present invention includes: a first clamping arm 1, one end of the first clamping arm 1 is provided with a first clamping groove 12 and a puncture portion 14, and the puncture portion 14 includes a puncture end 15; a second clamping arm 2, a clamping space is formed between the second clamping arm 2 and the first clamping arm 1, and the puncture end 15 is located at the edge of the puncture portion 14 close to the clamping space, and the end of the second clamping arm 2 is provided with a protrusion 22, and the protrusion 22 can be engaged with the first clamping groove 12; a connecting member 3, the connecting member 3 is located at one end of the first clamping arm 1 and the second clamping arm 2, the first clamping arm 1 and the second clamping arm 2 can move in a direction approaching each other, the connecting member 3 includes a clamping groove 33 and a clamping block 31, the clamping block 31 is located at the end of the first clamping arm 1, and the clamping groove 33 is located at the edge of the clamping block 31 and is connected to the clamping space.

[0027] In a vascular clamp of this embodiment, a blood vessel to be clamped is positioned between a first clamping arm 1 and a second clamping arm 2. The first clamping arm 1 and the second clamping arm 2 are then moved toward each other, and the puncturing portion 14 of the first clamping arm 1 punctures the tissue surrounding the blood vessel until the protrusion 22 engages with the first clamping groove 12. At this point, the blood vessel to be clamped is clamped by the vascular clamp, thereby achieving a hemostatic effect. Due to the arrangement of the clamping groove 33 and the clamping block 31 in the connector 3, the width of the clamping groove 33 gradually decreases as the first clamping arm 1 and the second clamping arm 2 move toward each other, thereby enabling the blood vessel to be clamped even at the position of the clamping groove 33, thereby achieving a hemostatic effect and preventing bleeding. The puncturing portion 14 allows the puncturing portion 14 to puncture tissue and achieve clamping of the blood vessel clamp even in a narrow surgical space. The engagement of the protrusion 22 with the first clamping groove 12 achieves relative fixation of the first clamping arm 1 and the second clamping arm 2.

[0028] The vascular clamp includes a first clamping arm 1, a second clamping arm 2 and a connecting piece 3, wherein a clamping space for clamping a blood vessel is formed between the first clamping arm 1 and the second clamping arm 2, and the connecting piece 3 is located at one end of the first clamping arm 1 and the second clamping arm 2, that is, the ends of the first clamping arm 1 and the second clamping arm 2 are both fixed to the connecting piece 3. In this embodiment, the vascular clamp is processed as a whole in one piece, so that the first clamping arm 1 and the second clamping arm 2 are both fixed to the connecting piece 3. The vascular clamp is made of a metal material that can be elastically deformed. Specifically, the vascular clamp is made of a magnesium alloy material. The first clamping arm 1, the second clamping arm 2 and the connecting piece 3 all have elastic deformation, so that the first clamping arm 1, the second clamping arm 2 and the connecting piece 3 can all be bent.

[0029] Reference Figures 2 to 4As shown, the first clamping arm 1 is generally arc-shaped, and the end of the first clamping arm 1 away from the connecting member 3 is provided with a first slot 12 and a puncturing portion 14. The puncturing portion 14 includes a puncturing end 15. Specifically, the puncturing end 15 of the puncturing portion 14 is located at the edge of the puncturing portion 14 close to the clamping space. The side of the first clamping arm 1 close to the second clamping arm 2 is the clamping side of the first clamping arm 1. The puncturing portion 14 is located at the junction of the end surface of the first clamping arm 1 and the clamping side of the first clamping arm 1. The clamping side edge of the first clamping arm 1 is chamfered, so that the width of the puncturing portion 14 gradually decreases towards the clamping space, thereby facilitating tissue puncture by the puncturing end 15. Preferably, the puncturing end 15 of the puncturing portion 14 protrudes in the direction away from the connecting member 3, so that the end surface of the puncturing portion 14 is generally inclined, further facilitating tissue puncture by the puncturing end 15. The first slot 12 is located on a side of the first clamping arm 1 away from the clamping space. A second slot 13 is provided between the first slot 12 and the piercing end 15 of the piercing portion 14 . The second slot 13 is also located at the end of the first clamping arm 1 .

[0030] The end of the second clamping arm 2 away from the connecting member 3 is provided with a protrusion 22, which can be engaged with the first clamping groove 12. Specifically, the side of the second clamping arm 2 closest to the first clamping arm 1 serves as the clamping side of the second clamping arm 2, and a receiving space is formed between the protrusion 22 and the clamping side of the second clamping arm 2. When the vascular clamp is in the clamping state, the clamping sides of the first clamping arm 1 and the second clamping arm 2 abut and fit together, and the end of the first clamping arm 1 away from the connecting member 3 can extend into the receiving space. At the same time, the protrusion 22 is engaged with the first clamping groove 12, and the side of the protrusion 22 closest to the clamping side of the second clamping arm 2 can fit with the side wall of the first clamping groove 12, thereby ensuring stable engagement between the protrusion 22 and the first clamping groove 12. The edges of the first clamping arm 1 and the second clamping arm 2 away from the clamping space are both chamfered. The projection 22 also includes a guide surface 23, which is located on the side of the projection 22 closest to the connector 3. The guide surface 23 is inclined as a whole, and the width of the projection 22 gradually decreases as it approaches the first clamping arm 1. The end of the first clamping arm 1 can abut against the guide surface 23 of the projection 22 and slide along the guide surface 23, thereby facilitating the engagement of the projection 22 with the first engaging groove 12. As the first clamping arm 1 and the second clamping arm 2 move toward each other, the end of the projection 22 first engages with the second engaging groove 13, and then the end of the first clamping arm 1 continues to slide along the guide surface 23, and the projection 22 then engages with the first engaging groove 12.

[0031] The puncturing end 15 of the first clamping arm 1 abuts against and slides along the guide surface 23. During this sliding motion, the bending of the first clamping arm 1 gradually increases, which in turn increases the force exerted by the puncturing end 15 on the guide surface 23. Consequently, the abutment and sliding motion of the puncturing end 15 against and along the guide surface 23 enable tissue puncture. The second clamping groove 13 is a V-shaped groove. The engagement of the end of the protrusion 22 with the second clamping groove 13 enables the cutting of tougher tissue, further enhancing the puncturing effect of the vascular clamp in this embodiment. When the end of the protrusion 22 engages the second clamping groove 13, a gap remains between the first clamping arm 1 and the second clamping arm 2, allowing the position of the blood vessel between the first and second clamping arms 1 and 2 to be adjusted. After the adjustment is complete, the end of the first clamping arm 1 continues to slide along the guide surface 23, and the protrusion 22 reengages the first clamping groove 12.

[0032] The connecting member 3 includes a connecting portion 32, a clamping groove 33, and a clamping block 31. The connecting portion 32 is U-shaped, with its two ends respectively located at the ends of the first clamping arm 1 and the second clamping arm 2, that is, the two ends of the connecting portion 32 are respectively fixed to the ends of the first clamping arm 1 and the second clamping arm 2. The clamping block 31 is cylindrical and located at the end of the first clamping arm 1. The clamping groove 33 is located at the edge of the clamping block 31 and communicates with the clamping space. Specifically, the intersection of the side wall of the clamping block 31 and the end of the first clamping arm 1 is relatively small, and the clamping groove 33 extends from the intersection of the clamping block 31 and the first clamping arm 1 and is arranged along the circumference of the clamping block 31, so that the clamping groove 33 is generally arc-shaped, and the end of the clamping groove 33 is communicated with the clamping space. By setting the clamping groove 33, the first clamping arm 1 and the second clamping arm 2 can move toward each other or away from each other. When the first clamping arm 1 and the second clamping arm 2 move toward each other, the width of the clamping groove 33 gradually decreases. When the first clamping arm 1 and the second clamping arm 2 move toward each other, the width of the clamping groove 33 gradually increases. The setting of the clamping groove 33 can reduce the probability of the blood vessel sliding into the clamping groove 33. After the blood vessel slides into the position of the clamping groove 33, the blood vessel can also be clamped by reducing the width of the clamping groove 33, thereby achieving the effect of hemostasis.

[0033] When processing magnesium alloy raw material, the raw material is first rolled into a sheet with a thickness of 0.5mm to 5.0mm by alternating hot and cold rolling. Vascular clamp blanks of varying sizes are then processed from the 0.5mm to 5.0mm sheet using laser cutting equipment. Furthermore, a clamping groove 33 is machined into the blank using a precision engraving machine. Finally, the clamp is polished, cleaned, and dried to obtain the final product. Prior to packaging, the clamp is sterilized using a sterilization process. Specifically, the polishing process uses a treatment solution mixed with phosphoric acid and anhydrous ethanol, with the volume ratio of phosphoric acid to anhydrous ethanol ranging from 1:2 to 1:5. Medical purified water is used in the sterilization process to remove any residual treatment solution from the surface of the clamp during polishing.

[0034] When in use, move the vascular clamp so that the blood vessel to be clamped is located between the first clamping arm 1 and the second clamping arm 2, and then the first clamping arm 1 and the second clamping arm 2 move in a direction approaching each other, and the puncturing end 15 on the first clamping arm 1 abuts against the guide surface 23 and slides along the guide surface 23 until the end of the protrusion 22 is engaged with the second slot 13. At this time, the puncturing part 14 of the first clamping arm 1 has punctured the tissue around the blood vessel, and then the puncturing end 15 continues to slide along the guide surface 23 until the protrusion 22 is engaged with the first slot 12. At this time, the blood vessel is clamped by the vascular clamp to achieve a hemostatic effect.

[0035] Reference Figure 5 As shown, the present invention further provides a hemostasis mechanism comprising the aforementioned vascular clamp and a driving member 4. The driving member 4 is capable of engaging with the first clamping arm 1 and the second clamping arm 2, and is capable of driving the first clamping arm 1 and the second clamping arm 2 toward each other. Specifically, the driving member 4 includes two symmetrically arranged driving arms that are hingedly connected to each other, thereby enabling relative rotation of the two driving arms. The relative rotation of the two driving arms can be achieved manually or by a driving mechanism.

[0036] Reference Figure 6 and Figure 7As shown, a first clamping block 11 is provided on the side of the first clamping arm 1 away from the clamping space, and a second clamping block 21 is provided on the side of the second clamping arm 2 away from the clamping space. The first clamping block 11 and the second clamping block 21 are both cylindrical and have equal diameters. The first clamping arm 1 and the second clamping arm 2 have equal thicknesses. The length of the first clamping block 11 is greater than the thickness of the first clamping arm 1, and the length of the second clamping block 21 is greater than the thickness of the second clamping arm 2. The driving arms are made of elastically deformable material. The ends of the two driving arms are each provided with a third clamping slot 43. The sidewalls of the third clamping slot 43 are provided with an opening, the width of the opening being smaller than the diameter of the first clamping block 11 and the second clamping block 21. The first clamping block 11 and the second clamping block 21 can both pass through the opening and engage with the third clamping slot 43. The third clamping slots 43 of the two driving arms engage with the first clamping block 11 and the second clamping block 21, respectively, so that the driving arms can drive the first clamping arm 1 and the second clamping arm 2 to move.

[0037] Grooves 41 are provided on opposing sides of the two driving arms. Once the first and second clamping arms 1 and 2 are engaged, the curved shapes of the first and second clamping arms 1 and 2 allow for the grooves 41 to accommodate them, preventing them from abutting against the driving arms during movement. This reduces the overall size of the driving arms, making the hemostasis mechanism suitable for use within confined working environments. A through-hole 42 is provided at the bottom of the groove 41 for draining blood during use of the driving arms and vascular clamp.

[0038] The present invention also provides a hemostasis method, which uses the above-mentioned hemostasis mechanism to perform hemostasis, comprising the following steps: S1: engaging the first clamping arm 1 and the second clamping arm 2 of the vascular clamp with the driving member 4; S2: moving the driving member 4 so that the blood vessel to be clamped is located between the first clamping arm 1 and the second clamping arm 2; S3: the driving member 4 drives the first clamping arm 1 and the second clamping arm 2 to move toward each other until the protrusion 22 engages with the first clamping groove 12. Specifically, in step S1, the third clamping grooves 43 of the two driving arms respectively engage with the first clamping block 11 and the second clamping block 21, thereby achieving the engagement of the first clamping arm 1 and the second clamping arm 2 of the vascular clamp with the driving member 4.

[0039] The present invention relates to a vascular clamp, hemostasis mechanism, and hemostasis method. By configuring a clamping groove 33 and a clamping block 31 in a connector 3, the width of the clamping groove 33 gradually decreases as the first clamping arm 1 and the second clamping arm 2 move toward each other, thereby clamping the blood vessel even at the position of the clamping groove 33 and achieving hemostasis, thereby preventing bleeding. Furthermore, the provision of a puncture portion 14 allows the puncture portion 14 to puncture tissue and achieve clamping of the vascular clamp in a narrow surgical space. The engagement of the protrusion 22 with the first clamping groove 12 achieves relative fixation of the first clamping arm 1 and the second clamping arm 2. The provision of a driver 4 facilitates the actuation of the vascular clamp to achieve clamping in a narrow surgical space.

[0040] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A vascular clamp, characterized in that: include: A first clamping arm, wherein one end of the first clamping arm is provided with a first clamping slot and a puncturing portion, wherein the puncturing portion includes a puncturing end; a second clamping arm, wherein a clamping space is formed between the second clamping arm and the first clamping arm, the piercing end is located at an edge of the piercing portion close to the clamping space, and a protrusion is provided at the end of the second clamping arm, and the protrusion can be engaged with the first clamping groove; A connecting member, wherein the connecting member is located at one end of the first clamping arm and the second clamping arm, the first clamping arm and the second clamping arm can move toward each other, and the connecting member includes a clamping groove and a clamping block, the clamping block is located at the end of the first clamping arm, and the clamping groove is located at the edge of the clamping block and is connected to the clamping space.

2. The vascular clamp according to claim 1, characterized in that: The clamping block is cylindrical, and the clamping groove is arranged along the circumference of the clamping block.

3. The vascular clamp according to claim 1, characterized in that: The protrusion also includes a guide surface, and the end of the first clamping arm can slide relative to the guide surface. An accommodating space is formed between the protrusion and the clamping side of the second clamping arm, and the end of the first clamping arm can be located in the accommodating space.

4. The vascular clamp according to claim 1, characterized in that: The width of the puncture portion gradually decreases toward the clamping space.

5. The vascular clamp according to claim 1, characterized in that: The first clamping arm and the second clamping arm are both arc-shaped. When the vascular clamp is in a clamping state, the first clamping arm and the second clamping arm abut against each other.

6. The vascular clamp according to claim 1, characterized in that: The first clamping slot is located on a side of the first clamping arm away from the clamping space. A second clamping slot is further provided between the first clamping slot and the piercing end of the piercing portion. The protrusion can be engaged with the second clamping slot.

7. A hemostasis mechanism, characterized in that: The vascular clamp comprises the vascular clamp according to any one of claims 1 to 6, and further comprises a driving member, wherein the driving member can be engaged with the first clamping arm and the second clamping arm, and the driving member can drive the first clamping arm and the second clamping arm to move in a direction approaching each other.

8. The hemostasis mechanism according to claim 7, characterized in that: The driving member includes two driving arms hinged to each other, the first clamping arm is provided with a first clamping block, the second clamping arm is provided with a second clamping block, and the end of the driving arm is provided with a third clamping groove, and the third clamping grooves of the two driving arms are respectively clamped with the first clamping block and the second clamping block.

9. The hemostasis mechanism according to claim 7, characterized in that: Grooves are provided on opposite sides of the two driving arms, and through holes are provided at the bottoms of the grooves.

10. A method for hemostasis, comprising the steps of: S1: clamping the first clamping arm and the second clamping arm of the vascular clamp to the driving member; S2: moving the driving member so that the blood vessel to be clamped is located between the first clamping arm and the second clamping arm; S3: The driving member drives the first clamping arm and the second clamping arm to move toward each other until the protrusion is engaged with the first clamping groove.

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