A vascular clip

Abstract

The utility model relates to a blood vessel clamp relates to the field of medical devices, including single body clamp and joint row clamp, single body clamp is composed of upper clamp piece, lower clamp piece, pivot, torsional spring, upper clamp piece is composed of upper rostral part, upper shaft part and upper handle part, lower clamp piece is composed of lower rostral part, lower shaft part and lower handle part, the pivot penetrates and inserts coaxial upper shaft part polygonal shaft hole, lower shaft part round axle hole and torsional spring center hole and constitutes single body clamp, the inner plane of upper rostral part and lower rostral part of single body clamp is equipped with the protruding, regular gap arrangement, the convex spine of uniform or non-uniform size, the top of convex spine is not sharp and is arranged, and the lower convex spine and the upper convex spine are mutually staggered and inlaid, the distal end of upper rostral part inner plane is equipped with recessed hook groove, and the distal end of lower rostral part inner plane is equipped with protruding rostral hook, the pivot is replaced by joint shaft and passes through the polygonal shaft hole of the upper clamp piece of multiple single body clamp and the round axle hole of lower clamp piece and constitutes joint row clamp, and the different polygonal plane of joint shaft makes the clamping closed surface of multiple single body clamp form the same direction, and the clamping angle has multiple states.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a blood vessel clamp. Background Technology

[0002] In surgical procedures, the clamping, positioning, orientation, obstruction, transection, ligation, and reconnection of blood vessels, nerves, and other small luminal tissues are frequently involved. Especially in emergency treatments, readily available temporary vascular clamps that require no additional tools are crucial. These clamps help medical personnel temporarily close blood vessels to block blood flow, use multiple clamps to mark and locate blood vessels or nerves, use multiple clamps to mark and orient blood vessels to prevent torsion, use different colors or clamping forces to distinguish between arteries and veins, and fix low-tension luminal tissues to prevent contracture. However, the problem of vascular clamps easily dislodging due to frequent use also urgently needs to be addressed. Summary of the Invention

[0003] The purpose of this utility model is to provide a technical solution for a blood vessel clamp that addresses the shortcomings of existing technologies and improves their safety performance.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted: A vascular clamp, characterized in that it comprises a single clamp and a row of clamps; the row of clamps is composed of a coupling and multiple single clamps; the single clamp is composed of an upper clamping plate, a lower clamping plate, a rotating shaft, and a torsion spring. The upper clip is composed of an upper beak, an upper shaft, and an upper handle. The upper beak extends straight out from the front end of the upper clip, and the far end of the inner plane is provided with a recessed hook groove. The inner plane is also provided with protruding upper burrs arranged in regular intervals. The lower clip is composed of a lower beak, a lower shaft, and a lower handle. The lower beak extends straight out from the front end of the lower clip, and the far end of the inner plane is provided with a protruding beak hook. The inner plane is also provided with protruding lower protrusions arranged in regular intervals. The lower and upper protrusions are interlocked and embedded in each other; The upper clamping piece has an upper shaft in the middle, and the upper shaft has two hollow independent shaft pieces near the outer edges on both sides. The two shaft pieces have concentric polygonal shaft holes in the middle. The lower clamping piece has a lower shaft in the middle, and the lower shaft has two hollow independent shaft pieces that are far from the outer edges on both sides. The distance from the outer edges on both sides is adapted to the thickness of the shaft pieces in the upper shaft. The two shaft pieces in the lower shaft have a concentric circular shaft hole in the middle. The cross section of the rotating shaft is adapted to the polygonal shaft hole of the upper clamping piece, and the length of the rotating shaft is adapted to the width of the upper shaft of the upper clamping piece. The upper clamping piece and the lower clamping piece are movably connected by the shaft hole with their inner surfaces facing each other. The upper clip has an upper handle at its tail end, and the inner surface of the upper handle has a recessed torsion spring groove. The lower clip has a lower handle at its tail end, and the inner surface of the lower handle has a recessed torsion spring groove. The torsion spring grooves are all the same size. The torsion spring is fitted outside the rotating shaft, located between the two shaft plates of the lower shaft part of the lower clamping plate, with the two torsion arms of the torsion spring facing the torsion spring groove of the upper handle and the torsion spring groove of the lower handle, respectively.

[0005] Furthermore, the upper and lower protrusions are configured to be the same size or different sizes, and the tips of the protrusions are non-sharp. structure.

[0006] Furthermore, the lengths of the upper and lower beaks are available in various specifications to suit vascular tissues of different circumferences.

[0007] Furthermore, both the outer surface of the upper handle and the outer surface of the lower handle are provided with anti-slip ridges.

[0008] Furthermore, the inner surface of the upper handle and the inner surface of the upper beak form a certain angle, enabling them to move in opposite directions around the polygonal shaft hole; the inner surface of the lower handle and the inner surface of the lower beak form a certain angle, enabling them to move in opposite directions around the circular shaft hole.

[0009] Furthermore, the two ends of the rotating shaft are fixed by compression to prevent connection failure.

[0010] Furthermore, the row of clamps includes at least two individual clamps, the specific number of which is determined according to actual needs.

[0011] Furthermore, the length of the coupling is greater than the total width of the multiple individual clamps; the coupling passes through the connecting shaft hole of the individual clamp to achieve assembly, so that both ends are also compressed to prevent the individual clamps from falling off; The cross-section of the coupling is adapted to the polygonal shaft hole of the upper clamping piece of the single clamp, controlling the upper clamping piece to be able to translate but not rotate on the coupling; the maximum outer edge of the cross-section of the coupling is not larger than the circular shaft hole of the lower clamping piece of the single clamp, controlling the lower clamping piece to be able to both translate and rotate on the coupling. Furthermore, during assembly, the row of clamps adapts to different polygonal planes of the coupling by using the polygonal shaft holes of the clamping plates on the individual clamps, so that the clamping surfaces of multiple individual clamps can form various angle states.

[0012] Furthermore, the upper shaft portion of the upper clamping piece, near the two side shaft pieces, clamps the lower shaft portion of the lower clamping piece on the outer side, thus assembling... It will not come loose or detach when mounted on a coupling.

[0013] The beneficial effects of this utility model are: A vascular clip includes a single clip and a row of clips composed of multiple single clips. Each single clip consists of an upper clip, a lower clip, a rotating shaft, and a torsion spring. The upper clip comprises an upper beak, an upper shaft, and an upper handle. The lower clip comprises a lower beak, a lower shaft, and a lower handle. The rotating shaft penetrates and inserts into a polygonal shaft hole in the upper shaft, a circular shaft hole in the lower shaft, and a central hole in the torsion spring, forming the single clip. The inner planes of the upper and lower beaks of each single clip have protruding barbs arranged in a regular, spaced pattern, of uniform or non-uniform size. The tips of the barbs are not sharp, and the lower and upper barbs are staggered and interlocked. The distal end of the inner plane of the upper beak has a recessed hook groove, and the distal end of the inner plane of the lower beak has a protruding hook. This solves the problem of vascular clips easily falling off during frequent use.

[0014] When assembling a row of clamps composed of multiple individual clamps, a coupling is used instead of a rotating shaft, passing through the polygonal shaft hole of the upper clamping plate and the circular shaft of the lower clamping plate. The multi-sided axial holes of the individual clips adapt to different polygonal planes of the coupling, allowing the clamping surfaces of multiple individual clips to form various states such as unidirectional or angular. In specific situations requiring vascular anastomosis, when severing the dissected blood vessel, 0° coupled clips are used. This not only fixes the severed length but also temporarily closes the vessel with closing force, and fixes the vessel direction to prevent torsion. During reanastomosis, the coupled clips can be moved inward to bring the vascular anastomosis closer for easier suturing. After the vascular anastomosis, the clips can be opened to facilitate rapid restoration of blood supply and reduce medical damage. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings: Figure 1 is a three-dimensional view of a single vascular clip; Figure 2 is a perspective view of the upper clip of a vascular clip; Figure 3 is a cross-sectional view of the upper clip of a vascular clip; Figure 4 is a perspective view of the lower clip of a vascular clip; Figure 5 is a cross-sectional view of the lower clip of a vascular clip. Figure 6 is a three-dimensional view of a row of vascular clips in the same direction (0°); Figure 7 is a three-dimensional view of a row of vascular clips at an angle (60°); Figure 8 is a schematic diagram of a vascular anastomosis procedure using a row of vascular clips.

[0016] In the diagram: 1. Upper clip; 2. Lower clip; 3. Rotary shaft; 4. Torsion spring; 5. Coupling; 6. Blood vessel; 101. Upper beak; 102. Upper Shaft portion; 103, upper handle portion; 104, hook groove; 105, upper protrusion; 106, anti-slip ridge; 107, torsion spring groove; 108, polygonal shaft hole; 201, lower beak portion; 202, lower shaft portion; 203, lower handle portion; 204, beak hook; 205, lower protrusion; 206, anti-slip ridge; 207, torsion spring groove; 208, round shaft hole. Detailed Embodiments

[0017] To further illustrate the purpose of this utility model, a blood vessel clamp of this utility model will be described in more detail with reference to the embodiments and the accompanying drawings 1-8. Detailed Implementation

[0018] Referring to Figures 1-5, a vascular clamp includes a single clamp and a row of clamps composed of multiple single clamps; the row of clamps includes a coupling 5 and multiple single clamps; each single clamp is composed of an upper clamping plate 1, a lower clamping plate 2, a rotating shaft 3, and a torsion spring 4.

[0019] The single clamp consists of an upper clamping plate 1, a lower clamping plate 2, a rotating shaft 3, and a torsion spring 4.

[0020] The upper clip 1 is composed of an upper beak 101, an upper shaft 102, and an upper handle 103. The upper beak 101 extends straight out from the front end of the upper clip 1, and has a recessed hook groove 104 at the distal end of its inner plane. The inner plane also has protruding upper spikes 105 arranged in a regular interval. The upper spikes can be of the same size or different sizes, and the tips of the upper spikes are not sharp. The upper beak 101 has various lengths to suit various vascular tissues with different circumferences. The upper shaft 102 is located in the middle of the upper clip 1. The upper shaft 102 has two hollow independent shaft pieces near the outer edges on both sides, and a concentric polygonal shaft hole 108 is located between the two shaft pieces. The upper handle 103 is located at the tail end of the upper clip 1. The inner surface of the upper handle 103 has a recessed torsion spring groove 107, and the outer surface of the upper handle 103 has an anti-slip ridge 106. The inner surface of the upper handle 103 and the inner surface of the upper beak 101 form a certain angle, which can form a reverse motion with the polygonal shaft hole 108 as the axis.

[0021] The lower clip 2 is composed of a lower beak portion 201, a lower shaft portion 202, and a lower handle portion 203. The lower beak portion 201 is flat at the front end of the lower clip 2. The upper beak 201 extends straight out, with a protruding beak hook 204 at the distal end of its inner plane. The inner plane also has protruding lower thorns 205 arranged in a regular pattern. These lower thorns 205 may be of uniform or inconsistent size, and their tips are not sharp. The lower thorns 205 and the upper thorns 105 are interlocked and staggered. The length of the lower beak 201 varies, matching the length of the upper beak 101, and is suitable for various vascular tissues with different circumferences. The lower clip 2 has a lower shaft 202 in its middle section. The lower shaft 202 has two hollow, independent shaft pieces located away from the outer edges on both sides. The distance from the outer edges matches the thickness of the shaft pieces in the upper shaft 102. A concentric circular shaft hole 208 is located between the two shaft pieces of the lower shaft 202. The lower clamp 2 has a lower handle 203 at its tail end. The inner surface of the lower handle 203 has a recessed torsion spring groove 207, and the outer surface of the lower handle 203 has an anti-slip ridge 206. The inner surface of the lower handle 203 and the inner surface of the lower beak 201 form a certain angle, allowing them to move in opposite directions around the circular shaft hole 208.

[0022] The cross-section of the rotating shaft 3 is adapted to the polygonal shaft hole 108 of the upper clamping piece 1, and the length of the rotating shaft 3 is adapted to the width of the upper clamping piece. The upper clamping piece is held in place through the shaft hole. Plate 1 and lower clamping plate 2 are movably connected with their inner surfaces facing each other. The two ends of the rotating shaft are fixed by compression to prevent connection failure.

[0023] The method of rotating shaft 3 can also use the two ends of a circular hollow tube to expand, and the hollow tube can be expanded without increasing its length.

[0024] The torsion spring 4 is fitted onto the outer edge of the rotating shaft 3, positioned between the two axle plates of the lower shaft portion 202 of the lower clamping plate 2. The two torsion springs 4... The arms are respectively aligned with the torsion spring grooves 107 of the upper handle 103 and 207 of the lower handle 203. The torsion spring 4 pushes the upper handle 103 and lower handle 203 outward, bringing the inner surfaces of the upper beak 101 and lower beak 201 closer together, creating surface pressure on the tissue and blood vessels. When the torsion force of the torsion spring 4 is overcome and the upper handle 103 and lower handle 203 are pressed inward, the inner surfaces of the upper beak 101 and lower beak 201 are moved away from each other, facilitating the entry of the blood vessel tissue into the clamping range. Different torsion spring specifications can generate different clamping forces.

[0025] Referring to Figures 6-7, the row of individual clamps includes a coupling 5, individual clamp A, individual clamp B, or more individual clamps.

[0026] The row of clips includes at least two individual clips, with the specific number determined according to actual needs. Under normal circumstances, the row of clips for this type of vascular clip includes no more than three individual clips.

[0027] The length of the coupling 5 is greater than the total width of the multiple individual clamps. The cross-section of the coupling 5 and the polygonal shaft hole 108 of the clamping piece 1 on the individual clamps... They are adapted to form a state that can translate but cannot rotate.

[0028] The maximum outer edge of the cross section of the coupling 5 is not larger than the circular shaft hole of the lower clamping piece 2 of the single clamp, so that the lower clamping piece 2 can both translate and rotate on the coupling 5.

[0029] After assembly, the coupling 5 is also compressed at both ends to prevent the individual clamps from falling off.

[0030] The upper shaft portion 102 of the upper clamping piece 1 is close to the two side shaft pieces, and clamps the lower shaft portion 202 of the lower clamping piece 2 away from the two side shaft pieces on the outside, so that it will not loosen or detach when assembled on the coupling 5.

[0031] The row of clamps, composed of multiple individual clamps, is assembled by adapting the coupling 5 to different shafts through the polygonal shaft holes 108 on the clamp plates 1 of the individual clamps. The polygonal plane allows the clamping surfaces of multiple individual units to form various states such as being in the same direction or at an angle.

[0032] The coupling 5 replaces the rotating shaft 3. The length of the coupling 5 is greater than the length of the rotating shaft 3, and generally the length ratio is greater than the length of the rotating shaft 3. The angle (width of the individual clamp) is 4-6 times. The cross-section of the coupling 5 is adapted to the outer circumference of the polygonal shaft hole 108 of the upper clamping piece 1, forming a state that can translate but cannot rotate. The number of polygons with matching outer circumferences of the shaft and shaft hole can determine the state of the row of clamps with included angles. For example, a uniform hexagon can achieve a state with included angles that are multiples of 60°, that is, the included angle of the closed surfaces of multiple individual clamps is 0°-60°, 60°-120°, 120°-180°, 180°-240°, 240°-300°, etc.

[0033] As shown in Figure 8, in certain situations, a vascular anastomosis procedure is required. When severing the dissected vessel 6, a 0° conjoint clip is used. It can fix the length of the severed vessel, temporarily close the vessel 6 with the closing force, and fix the direction of the vessel 6 to prevent torsion. When re-anastomosing the vessel 6, the individual clips A and B in the row of clips move inward and towards each other to bring the anastomosis of the vessel 6 closer together for easy suturing. The vessel 6 can also be opened after anastomosis to facilitate the rapid restoration of blood supply and reduce medical damage.

Claims

1. A vascular clamp, characterized in that, It includes single clamps and multi-unit clamps; the multi-unit clamps consist of a coupling and multiple single clamps; the single clamp consists of an upper clamping plate, a lower clamping plate, a rotating shaft, and a torsion spring; The upper clip is composed of an upper beak, an upper shaft, and an upper handle. The upper beak extends straight out from the front end of the upper clip, and the far end of the inner plane is provided with a recessed hook groove. The inner plane is also provided with protruding upper burrs arranged in regular intervals. The lower clip is composed of a lower beak, a lower shaft, and a lower handle. The lower beak extends straight out from the front end of the lower clip, and the far end of the inner plane is provided with a protruding beak hook. The inner plane is also provided with protruding lower protrusions arranged in regular intervals. The lower and upper protrusions are interlocked and embedded in each other; The upper clamping piece has an upper shaft in the middle, and the upper shaft has two hollow independent shaft pieces near the outer edges on both sides. The two shaft pieces have concentric polygonal shaft holes in the middle. The lower clamping piece has a lower shaft in the middle, and the lower shaft has two hollow independent shaft pieces that are far from the outer edges on both sides. The distance from the outer edges on both sides is adapted to the thickness of the shaft pieces in the upper shaft. The two shaft pieces in the lower shaft have a concentric circular shaft hole in the middle. The cross section of the rotating shaft is adapted to the polygonal shaft hole of the upper clamping piece, and the length of the rotating shaft is adapted to the width of the upper shaft of the upper clamping piece. The upper clamping piece and the lower clamping piece are movably connected by the shaft hole with their inner surfaces facing each other. The upper clip has an upper handle at its tail end, and the inner surface of the upper handle has a recessed torsion spring groove. The lower clip has a lower handle at its tail end, and the inner surface of the lower handle has a recessed torsion spring groove. The torsion spring grooves are all the same size. The torsion spring is fitted outside the rotating shaft, located between the two shaft plates of the lower shaft part of the lower clamping plate, with the two torsion arms of the torsion spring facing the torsion spring groove of the upper handle and the torsion spring groove of the lower handle, respectively.

2. A vascular clamp according to claim 1, characterized in that, The upper and lower protrusions are configured to be of the same size or different sizes, and the tips of the protrusions are configured to be non-sharp.

3. A vascular clamp according to claim 1, characterized in that, The upper and lower beaks come in various lengths to accommodate different circumferences of vascular tissue.

4. A vascular clamp according to claim 1, characterized in that, Both the outer sides of the upper handle and the outer sides of the lower handle are provided with anti-slip ridges.

5. A vascular clamp according to claim 1, characterized in that, The inner surface of the upper handle and the inner surface of the upper beak form a certain angle, which can form a reverse movement with the polygonal shaft hole as the axis. The inner surface of the lower handle and the inner surface of the lower beak form a certain angle, which allows them to move in opposite directions around the circular shaft hole.

6. A vascular clamp according to claim 1, characterized in that, The two ends of the shaft are fixed by compression to prevent connection failure.

7. A vascular clamp according to claim 1, characterized in that, The row of clamps includes at least two individual clamps, with the specific number determined according to actual needs.

8. A vascular clamp according to claim 1, characterized in that, The length of the coupling is greater than the total width of the multiple individual clamps; the coupling passes through the connecting shaft hole of the individual clamp to achieve assembly, so that both ends are also compressed to prevent the individual clamps from falling off; The cross-section of the coupling is adapted to the polygonal shaft hole of the upper clamping piece of the single clamp, controlling the upper clamping piece to be able to translate but not rotate on the coupling; the maximum outer edge of the cross-section of the coupling is not larger than the circular shaft hole of the lower clamping piece of the single clamp, controlling the lower clamping piece to be able to both translate and rotate on the coupling.

9. A vascular clamp according to claim 1, characterized in that, During assembly, the multi-sided shaft holes of the individual clamps adapt to the different polygonal planes of the coupling, so that the clamping surfaces of multiple individual clamps can form various angle states.

10. A vascular clamp according to claim 1, characterized in that, The upper clamping plate has two adjacent shaft pieces on its upper shaft portion that clamp the two distant shaft pieces on its lower shaft portion on its outer side, so that they will not loosen or detach when assembled on the coupling.

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