Blood vessel suture passing pliers

Abstract

The utility model provides a blood vessel suture passing clamp which comprises a clamp handle, a clamp body and a clamp mouth, the clamp mouth is provided with a first clamp blade and a second clamp blade which can be combined oppositely, the front end of the first clamp blade is hollowed out to form a suture passing hole, and the two sides of the suture passing hole are respectively provided with a first suture groove used for fixing an operation suture. A wire clamping nozzle is arranged at the front end of the second clamp blade in the direction towards the first clamp blade, a second wire groove is formed in the position, corresponding to the wire passing hole, of the end face, facing the first clamp blade, of the wire clamping nozzle in a concave mode, and positioning pieces are arranged at the positions, corresponding to the two first wire grooves, of the two sides of the wire clamping nozzle respectively. The positioning pieces are embedded into the corresponding first wire grooves when the first forceps blade and the second forceps blade are meshed, the wire clamping nozzles are inserted into the wire passing holes, and operation wires fixed in the wire passing holes are clamped into the second wire grooves to be clamped and can be taken away by the second forceps blade. The blood vessel wire passing clamp can complete blood vessel wire passing conveniently, and the blood vessel cannot be pulled to cause blood vessel damage.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically to a vascular suture clamp. Background Technology

[0002] Vascular ligation is a common procedure in thoracoscopic surgery. When ligating a blood vessel, one end of the surgical suture must first be wrapped around the vessel; this process is called suture passing. Suture passing is generally performed using the following two methods:

[0003] 1. Pass the long curved clamp with the suture under the blood vessel, release the suture, withdraw the clamp, and then cross it over the blood vessel to clamp the suture again;

[0004] 2. The first long curved forceps passes under the blood vessel, and the second long curved forceps with the suture is handed to the first curved forceps. The first curved forceps is then pulled back to pull out the surgical suture.

[0005] The two conventional suture methods described above can meet the surgical requirements in most cases. However, in some cases with narrow intervascular spaces or thin vessels, there is a possibility of tearing due to excessive traction on the vessel. This is especially true during single-port thoracoscopic surgery, where the risk of vascular injury is higher due to the instruments colliding with each other. Utility Model Content

[0006] The purpose of this invention is to provide a vascular suture clamp that facilitates vascular suture passing without pulling on the blood vessel and causing damage.

[0007] To achieve the above objectives, this utility model provides a vascular suture forceps, comprising a handle, a body, and a jaw. The jaw has a first clamping blade and a second clamping blade that can be engaged. The front end of the first clamping blade is hollowed out to form a suture hole, and a first suture groove for fixing the surgical suture is provided on each side of the suture hole. The front end of the second clamping blade is provided with a clamping mouth facing the first clamping blade. A second suture groove is recessed on the end face of the clamping mouth facing the first clamping blade at the position corresponding to the suture hole. A positioning member is provided on each side of the clamping mouth at the position corresponding to the two first suture grooves. When the first and second clamping blades are engaged, the positioning member is embedded in the corresponding first suture groove, and the clamping mouth is inserted into the suture hole. The surgical suture fixed in the suture hole is clamped in the second suture groove and can be removed by the second clamping blade.

[0008] Furthermore, the second wire groove is provided with symmetrical guide surfaces on both sides. The guide surfaces are inwardly concave inclined surfaces and connected to the first wire groove. The depth of the guide surfaces and the inward inclination angle are both less than the depth of the second wire groove and the inward inclination angle. When the wire clamping nozzle is inserted into the wire hole, the projections of the first wire groove and the second wire groove are on the same straight line.

[0009] Furthermore, the width of the second groove gradually decreases from the outside to the inside.

[0010] Furthermore, the front end of the first clamp blade is raised towards the second clamp blade, and the wire hole and the first wire groove are provided on the raised part.

[0011] Furthermore, the wire passage hole can accommodate the wire clamping nozzle moving through it, the depth of the second wire groove is greater than the depth of the first wire groove, and the maximum width of the second wire groove is less than the width of the first wire groove.

[0012] Furthermore, the surgical suture crosses the suture hole and is embedded in the first suture groove at both ends of the suture hole. When the first clamp blade and the second clamp blade engage, the positioning element is embedded in the corresponding first suture groove to press down the surgical suture and keep it taut. After the clamping nozzle is inserted into the suture hole, the surgical suture is stuck into the second suture groove, and after the first clamp blade and the second clamp blade increase the biting force, it is further pressed into the second suture groove and clamped.

[0013] Furthermore, the lower end of the positioning member forms a plug portion that can be embedded in the first wire groove. The plug portion is a triangular prism with the apex facing down. The first wire groove is a triangular prism groove with the apex facing down. The first wire groove is located on the left and right sides of the center line of the wire hole. The length direction of the two first wire grooves is perpendicular to the length direction of the clamp body.

[0014] Furthermore, the first and second clamp blades engage around a blood vessel, and the clamping nozzle bends from the front end of the second clamp blade toward the first clamp blade. The clamping nozzle is supported at the front end of the first clamp blade, and a passage gap is formed between the first and second clamp blades after they are engaged, allowing the blood vessel to pass through.

[0015] Furthermore, the vascular suture forceps are double-jointed forceps, with the handle, body, and mouth all made of stainless steel.

[0016] Furthermore, the first groove has a maximum width of 0.4 mm and a depth of 1.5 mm; the second groove has a maximum width of 0.3 mm and a depth of 3 mm; and both guide surfaces have a width of 0.85 mm and a depth of 0.5 mm.

[0017] After adopting the above solution, the present invention has at least the following technical effects: Since the depth of the second suture groove is greater than that of the first suture groove and the width of the second suture groove is smaller than that of the first suture groove, when the vascular suture clamp of the present invention engages, the surgical suture originally fixed in the first suture groove is inserted into the second suture groove, so that the surgical suture is changed from being fixed on the first clamp blade to being fixed on the second clamp blade. In this way, the vascular suture can be quickly passed through the suture, and the vascular suture clamp does not touch the blood vessel or pull on the blood vessel to cause damage during the suture passing process, which greatly improves the safety of the operation, and is especially suitable for single-port thoracoscopic surgery and surgery performed by young doctors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a top view of the first clamp blade of this utility model.

[0020] Figure 3 This is a side view of the first clamp leaf of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the front end of the second pincer blade of this utility model.

[0022] Figure 5 for Figure 4 Cross-sectional view.

[0023] Figure 6 This is a schematic diagram showing the transfer of the surgical suture from the first clamp blade to the second clamp blade in this utility model (positioning element omitted).

[0024] Figure 7 This is a schematic diagram (I) of the process of using this utility model (positioning component omitted) to pass blood vessels through a suture.

[0025] Figure 8 This is a schematic diagram (II) of the process of using this utility model (positioning component omitted) to pass blood vessels through a suture.

[0026] Figure 9 This is a schematic diagram (III) of the process of using this utility model (positioning component omitted) to pass blood vessels through the suture.

[0027] Figure 10 This is a schematic diagram (IV) of the process of using this utility model (positioning component omitted) to pass blood vessels through the suture.

[0028] Figure 11 This is a schematic diagram (V) illustrating the process of using this utility model (positioning element omitted) for blood vessel transecting.

[0029] Explanation of icon numbers:

[0030] 10. Pliers jaws; 1. First pliers blade; 11. Wire guide hole; 12. First wire groove; 13. Lifting section;

[0031] 2 Second clamp blade; 21 Wire clamping nozzle; 211 Second wire groove; 212 Guide surface; 22 Positioning element; 221 Plug part;

[0032] 3 surgical sutures;

[0033] 4. Handle; 5. Body; 6. Blood vessel; A. End face. Detailed Implementation

[0034] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0035] This utility model discloses a vascular suture clamp, see reference. Figures 1 to 4This is one embodiment of the present invention. The vascular suture forceps in this embodiment includes a handle 4, a body 5, and a jaw 10. The jaw 10 has a first jaw blade 1 and a second jaw blade 2 that can be engaged. The front end of the first jaw blade 1 is hollowed out to form a suture hole 11. On each side of the suture hole 11, there is a first suture groove 12 for fixing the surgical suture 3, which can be embedded in the first suture groove 12 for fixation. The front end of the second jaw blade 2 has a suture clamping nozzle 21 facing the first jaw blade 1. The suture clamping nozzle 21 can be bent from the front end of the second jaw blade 2 towards the first jaw blade 1. A second suture groove 211 is recessed on the end face A of the suture clamping nozzle 21 facing the first jaw blade 1, corresponding to the position of the suture hole 11. On both sides of the suture clamping nozzle 21, corresponding to the positions of the two first suture grooves 12, a positioning member 22 is provided. When the suture clamping nozzle 21 is inserted into the suture hole 11, the positioning member 22 can be embedded in the corresponding first suture groove 12. When the first clamp blade 1 and the second clamp blade 2 engage, the positioning member 22 can be embedded in the corresponding first suture groove 12, and the suture clamping nozzle 21 is inserted into the suture hole 11. The surgical suture fixed in the suture hole 11 is clamped in the second suture groove 12. The clamped surgical suture 3 can also be removed by the second clamp blade 2.

[0036] In this embodiment, the front end of the first clamp blade 1 curves upward toward the second clamp blade 2, forming a curved section 13. A wire hole 11 and a first wire groove 12 are located on the curved portion (curved section 13). The curved design facilitates the passage of the front end of the first clamp blade 1 through the intervascular space. Figure 9 As shown, since the clamping nozzle 21 can be bent from the front end of the second clamp blade 2 toward the first clamp blade 1, the clamping nozzle 21 is supported on the front end of the raised section 13 of the first clamp blade 1, so that after the first clamp blade 1 and the second clamp blade 2 are aligned, a passage gap is formed between them that allows the blood vessel 6 to pass through.

[0037] The suture hole 11 can be square, allowing the suture clamping nozzle 21 to move and insert within it. When the first clamping blade 1 and the second clamping blade 2 engage, the end of the suture clamping nozzle 21 is fully inserted into the suture hole 11. Furthermore, the depth of the second suture groove 211 can be greater than the depth of the first suture groove 12, and the width of the second suture groove 211 can be smaller than the width of the first suture groove 12, making it easier for the surgical suture 3 to be inserted into the second suture groove 211 when the suture clamping nozzle 21 is inserted into the suture hole 11.

[0038] Further reading Figure 4 , Figure 5 The lower end of the positioning member 22 forms a plug portion 221 that can be gradually embedded into the first wire groove 12. The plug portion 221 can be formed into a triangular prism with the apex facing downwards. The first wire groove 12 is a corresponding triangular prism groove with the apex facing downwards. The first wire groove 12 is located on the left and right sides of the center line of the wire hole 11, and the length direction of the two first wire grooves 12 is perpendicular to the length direction of the clamp body 5. The positioning member 22 is also located on the left and right sides of the center line of the wire clamping nozzle 21, so that when the wire clamping nozzle 21 is inserted into the wire hole 11, the positioning member 22 can be accurately embedded into the first wire groove 12.

[0039] The second groove 211 may also have symmetrical guide surfaces 212 on both sides. The guide surfaces 212 may be inwardly concave inclined surfaces and connected to the first groove 12. The depth and inward inclination angle of the guide surfaces 212 are smaller than the depth and inward inclination angle of the second groove 211. When the clamping nozzle 21 is inserted into the suture hole 11, the projections of the first groove 12 and the second groove 211 are on the same straight line, which facilitates the surgical suture 3 to enter the second groove 211 from the first groove 12. Furthermore, the width of the second groove 211 can be gradually reduced from the outside to the inside. In this embodiment, the width of the second groove 211 gradually reduces from the bottom to the top, which facilitates the surgical suture 3 to be gradually pressed and clamped in the second groove 211.

[0040] See Figures 6 to 11 Based on the above structure, when using this utility model for suture passing, the surgical suture 3 is first positioned between the first clamp blade 1 and the second clamp blade 2. The surgical suture 3 crosses the suture hole 11 and is embedded and fixed in the first suture groove 12 at both ends of the suture hole 11. After the first clamp blade 1 and the second clamp blade are aligned, a passing gap is formed that allows the blood vessel 6 to pass through. Then, the first clamp blade 1 and the second clamp blade 2 of the suture passing clamp are engaged around a blood vessel 6. At this time, the positioning member 22 is embedded in the corresponding first suture groove 12 to press down the surgical suture 3, so that the surgical suture 3 is in the correct position. Keep the area above the suture hole 11 taut, insert the suture clamp 21 into the suture hole 11, and the surgical suture 3 is clamped into the second suture groove 211; further force is applied to bite the first clamp leaf 1 and the second clamp leaf 2, which can press the surgical suture 3 into the second suture groove 211 deeper and clamp it tightly, further fixing the surgical suture 3; open the clamp 10, the first clamp leaf 1 and the second clamp leaf 2 move away from each other, the surgical suture 3 is transferred from the first clamp leaf 1 to the second clamp leaf 2, the surgical suture 3 can be pulled away by the second clamp leaf 2 and pulled back, and then move the clamp 10 out of the position of the blood vessel 6 to complete the suture passage.

[0041] When the suture is being passed through, the guide surfaces 212 on both sides of the second suture groove 211 can guide the surgical suture 3. When the surgical suture 3 does not correspond exactly to the position of the second suture groove 211, it can be guided into the second suture groove 211 through the inclined direction of the guide surfaces 212. And because the second suture groove 211 gradually narrows from bottom to top, the surgical suture 3 can be more firmly stuck in the second suture groove 211.

[0042] In the above embodiment, since the depth of the second groove 211 is greater than that of the first groove 12 and the width of the second groove 211 is smaller than that of the first groove 12, when the suture clamp for the blood vessel 6 is engaged, the surgical suture 3, which was originally fixed in the first groove 12, is inserted into the second groove 211, so that the surgical suture 3 changes from being fixed on the first clamp blade 1 to being fixed on the second clamp blade 2. This allows for the rapid passage of the blood vessel 6 through the suture, and during the passage process, the suture clamp for the blood vessel 6 does not touch the blood vessel 6, nor does it pull on the blood vessel 6 and cause damage to the blood vessel 6, which greatly improves the safety of the operation, especially suitable for single-port thoracoscopic surgery and surgery performed by young doctors.

[0043] Preferably, the vascular 6 suture clamp in this embodiment is a double-jointed clamp commonly used in thoracoscopic surgery, and the clamp handle 4 and the clamp body 5 adopt a sliding plate structure, which will not be described in detail here.

[0044] Preferably, the handle 4, the body 5, and the jaws 10 are all made of stainless steel.

[0045] Preferably, the total length of the first clamp blade 1 can be 30mm, and the total length of the second clamp blade 2 can be 23mm; the size of the wire hole 11 can be 3mm*4mm; the size of the cross-section of the wire clamping nozzle 21 corresponding to the wire hole 11 can be 2mm*3.8mm; the width of the first wire groove 12 can be 0.4mm and the depth can be 1.5mm; the maximum width of the lower plug portion 221 of the positioning member 22 can be 0.4mm and the height can be 1.5mm; the maximum width of the second wire groove 211 can be 0.3mm and the depth can be 3mm (including the depth of the guide surface 212); the width of both guide surfaces 212 is 0.85mm and the depth is 0.5mm.

[0046] The above is merely one embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vascular suture clamp, comprising a handle, a body, and a jaw, the jaw having a first clamp blade and a second clamp blade that can engage, characterized in that, The first clamp blade has a hollowed-out suture hole at its front end, and a first suture groove is provided on each side of the suture hole for fixing the surgical suture. The second clamp blade has a suture clamping nozzle at its front end facing the first clamp blade. A second suture groove is recessed on the end face of the clamping nozzle facing the first clamp blade at the position corresponding to the suture hole. A positioning element is provided on each side of the clamping nozzle at the position corresponding to the two first suture grooves. When the first and second clamp blades are engaged, the positioning element is embedded in the corresponding first suture groove, and the clamping nozzle is inserted into the suture hole. The surgical suture fixed in the suture hole is clamped in the second suture groove and can be taken away by the second clamp blade.

2. The vascular suture clamp according to claim 1, characterized in that, The second wire groove is also provided with symmetrical guide surfaces on both sides. The guide surfaces are inwardly concave inclined surfaces and connected to the first wire groove. The depth of the guide surfaces and the inward inclination angle are both less than the depth of the second wire groove and the inward inclination angle. When the wire clamping nozzle is inserted into the wire hole, the projections of the first wire groove and the second wire groove are on the same straight line.

3. A vascular suture clamp according to claim 1 or 2, characterized in that, The width of the second groove gradually decreases from the outside to the inside.

4. A vascular suture clamp according to claim 1, characterized in that, The front end of the first clamp blade curves upward toward the second clamp blade, and the wire hole and the first wire groove are located on the curved part.

5. A vascular suture clamp according to claim 1 or 4, characterized in that, The wire passage hole can accommodate the wire clamp nozzle to move through it. The depth of the second wire groove is greater than the depth of the first wire groove, and the maximum width of the second wire groove is less than the width of the first wire groove.

6. A vascular suture clamp according to claim 1 or 4, characterized in that, The surgical suture crosses the suture hole and is embedded in the first suture groove at both ends of the suture hole. When the first and second clamping blades engage, the positioning element is embedded in the corresponding first suture groove to press the surgical suture and keep it taut. After the clamping nozzle is inserted into the suture hole, the surgical suture is stuck into the second suture groove and is further pressed into the second suture groove and clamped after the first and second clamping blades increase their biting force.

7. A vascular suture clamp according to claim 1, characterized in that, The lower end of the positioning part forms a plug part that can be embedded in the first wire groove. The plug part is a triangular prism with the top corner facing down. The first wire groove is a triangular prism groove with the top corner facing down. The first wire groove is located on the left and right sides of the center line of the wire hole. The length direction of the two first wire grooves is perpendicular to the length direction of the clamp body.

8. A vascular suture clamp according to claim 1, characterized in that, The first and second clamp blades engage around a blood vessel. The clamping nozzle bends from the front end of the second clamp blade toward the first clamp blade and is supported at the front end of the first clamp blade. After the first and second clamp blades engage, a passage gap is formed between them, allowing the blood vessel to pass through.

9. A vascular suture clamp according to claim 1, characterized in that, The vascular suture forceps are double-jointed forceps, with the handle, body, and mouth all made of stainless steel.

10. A vascular suture clamp according to claim 2, characterized in that, The first groove has a maximum width of 0.4 mm and a depth of 1.5 mm; the second groove has a maximum width of 0.3 mm and a depth of 3 mm; both guide surfaces have a width of 0.85 mm and a depth of 0.5 mm.

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