A disposable single blood blocking clip

Abstract

The present invention discloses a disposable single blood-blocking clamp, in which the first clamping part of the first clamp and the second clamping part of the second clamp adopt an elastic component to drive the first clamp and the second clamp to form a clamping structure, so that the first clamping part can stretch and deform from a first form to a second form along the second clamping part under the action of elastic tension, and form a self-locking structure with the second clamping part in the second form, so as to limit the axial and vertical movement of the first clamping part, so that the first clamp and the second clamp form an interlocking state, and realize stable clamping of the blood vessel; at the same time, when the first clamping part loses the action of elastic tension, it can restore from the second form to the first form, and synchronously release the self-locking structure formed between the first clamping part and the second clamping part, so that the blood-blocking clamp can restore to its initial state, thereby improving the structural stability and stable clamping of the blood-blocking clamp.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a disposable single blood blocking clip. Background Art

[0002] Blood clamps are medical devices often used by doctors during surgery. They are used to clamp blood vessels to prevent blood from flowing out of disconnected blood vessels. Blood clamps are crucial for clamping blood vessels. If the clamping force is too large or unstable, it is easy to damage the blood vessel wall tissue and endothelium during use and form thrombus. If the clamping force is too small, bleeding is likely to occur. Traditional blood clamps usually have a spring between the upper and lower clamps so that the spring drives the upper and lower clamps to close, clamp and close the blood vessels.

[0003] A Chinese patent with announcement number CN 213217396 U discloses a disposable blood blocking clamp, which respectively designs a spring chamber, a tightening head, a limiting head and other structures in the upper and lower clamp bodies to fix the spring, making the product force value more accurate, better protecting the vascular tissue and avoiding the formation of thrombus during surgery. The tightening head and the limiting head on the left side of the spring chamber fix the left hind leg of the spring, and the right hind leg of the spring is fixed by the tightening head and the limiting head on the right side, providing better stabilization for the stability of the spring and the product force value.

[0004] However, the blood-blocking clamp of this scheme has horizontal and straight clamps at the ends of the upper and lower clamp bodies used to clamp the blood vessels. When the upper and lower clamp bodies are closed, the clamps cannot be locked, which causes the clamping of the blood vessel to easily shift and the clamping to be unstable, thereby causing damage to the blood vessel wall tissue and the endothelium or bleeding.

[0005] Therefore, how to effectively improve the clamping stability of the blood blocking clamp and prevent damage to the vascular wall tissue and the endothelium or bleeding during use has become an urgent problem to be solved in the field. Summary of the invention

[0006] In view of the defects of the prior art, the object of the present invention is to provide a disposable single blood blocking clamp with simple structure and stable clamping.

[0007] In order to achieve the above-mentioned object, the disposable single blood blocking clip provided by the present invention comprises a first clip and a second clip and an elastic component which are arranged to cooperate with each other, wherein the first clip comprises a first clamping portion and a first operating portion, and the second clip comprises a second clamping portion and a second operating portion, and the elastic component is arranged to cooperate with the first operating portion of the first clip and the second operating portion of the second clip, so as to form elastic tension between the first clip and the second clip;

[0008] The first clamping surface of the first clamping portion is an arc-shaped surface in an initial state, and the second clamping surface of the second clamping portion always remains a flat surface;

[0009] The first clamping portion can move toward the second clamping portion based on the elastic tension formed by the elastic component, so that the first clamping surface of the first clamping portion abuts against the second clamping surface of the second clamping portion, and under the continuous action of the elastic tension, the first clamping portion can deform and extend along the second clamping surface of the second clamping portion, deforming and extending from the first form to the second form, and in the second form, the first clamping surface of the first clamping portion can be flat against the second clamping surface of the second clamping portion to form a clamping structure, and the end of the first clamping portion abuts against the end of the second clamping portion to form a self-locking structure;

[0010] When the first operating part and / or the second operating part is subjected to force, so that the first clamping part loses the elastic tension formed by the elastic component, it can recover from the second form to the first form, so that the end of the first clamping part and the end of the second clamping part no longer abut against each other, and the self-locking structure formed between the first clamping part and the second clamping part is synchronously released.

[0011] Furthermore, a limiting member is provided at the end of the second clamping portion, and the limiting member is configured such that when the first clamping portion is in the second shape, the limiting member abuts against the first clamping portion to limit the movement of the first clamping portion.

[0012] Furthermore, the end of the first clamping portion is in the form of a first inclined surface, the limiting member is in the form of a hook, and a second inclined surface matched with the first inclined surface is formed at the end.

[0013] Furthermore, the elastic component is composed of a U-shaped spring sheet, a groove is provided at the bottom of the spring sheet, and a first elastic arm and a second elastic arm are formed by extending along both ends of the groove.

[0014] Furthermore, the first clip and the second clip also include a first connecting portion and a second connecting portion respectively arranged in the middle of the first clip and the second clip, and a connecting shaft passes through the first connecting portion and the second connecting portion and is inserted into the bottom groove of the spring sheet.

[0015] Furthermore, a limiting member is provided at the end of the second clamping portion, and the limiting member is configured such that when the first clamping portion is in the second state, the first clamping portion abuts against the limiting member to limit the movement of the first clamping portion.

[0016] Furthermore, the elastic component is composed of a U-shaped spring sheet, a groove is provided at the bottom of the spring sheet, and a first elastic arm and a second elastic arm are formed by extending along both ends of the groove.

[0017] Furthermore, the first clip and the second clip further include a first connecting portion and a second connecting portion respectively disposed in the middle of the first clip and the second clip.

[0018] Furthermore, the connecting shaft passes through the first connecting portion and the second connecting portion, and is inserted into the bottom groove of the elastic sheet.

[0019] Furthermore, a first spring sheet groove for accommodating and limiting the first elastic arm of the spring sheet and a second spring sheet groove for accommodating and limiting the second elastic arm of the spring sheet are respectively provided on opposite surfaces of the first operating portion and the second operating portion.

[0020] Furthermore, the ends of the first elastic arm and the second elastic arm are provided with limiting ridges.

[0021] Furthermore, the first operating portion and the second operating portion are respectively provided with anti-slip ribs.

[0022] Furthermore, a plurality of clamping teeth which are distributed at staggered intervals are respectively disposed on the relative clamping surfaces of the first clamping portion and the second clamping portion.

[0023] Furthermore, the clamping teeth are composed of a connecting piece and a convex tooth arranged on the connecting piece, and the cross section of the convex tooth is trapezoidal.

[0024] The disposable single blood-blocking clamp provided by the present invention has a first clamping portion of the first clamp and a second clamping portion of the second clamp using an elastic component to drive the first clamp and the second clamp to form a clamping structure, so that the first clamping portion can stretch and deform from the first form to the second form along the second clamping portion under the action of elastic tension, and form a self-locking structure with the second clamping portion in the second form, limiting the axial and vertical movement of the first clamping portion, so that the first clamp and the second clamp form an interlocking state, and achieve firm clamping of the blood vessel; when the first operating portion and / or the second operating portion are subjected to force, so that the first clamping portion loses the elastic tension formed by the elastic component, it can recover from the second form to the first form, so that the end of the first clamping portion is no longer abutted against the end of the second clamping portion, and the self-locking structure formed between the first clamping portion and the second clamping portion is synchronously released, so that the blood-blocking clamp is restored to its initial state, thereby improving the structural stability and firm clamping of the blood-blocking clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the overall structure of the disposable single blood blocking clip provided by the present invention;

[0027] Figure 2 A schematic diagram of the closed structure of the disposable single blood blocking clip provided by the present invention;

[0028] Figure 3 This is a schematic diagram of the overall structure of the disposable single blood blocking clamp of the present invention;

[0029] Figure 4 and Figure 5 It is a schematic diagram of the matching structure of the first clamping part and the second clamping part in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the upper clip in the present invention;

[0031] Figure 7 It is a structural schematic diagram of the lower clip in the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the clamping teeth in the present invention;

[0033] Fig. 9 This is a schematic diagram of the structure of the first operating part and the second operating part in the present invention;

[0034] Fig.10 It is a schematic diagram of the cooperation between the first clamping part and the second clamping part and the blood vessel in the present invention.

[0035] Reference numerals:

[0036] 100. Upper clamping piece; 110. First clamping part; 111. First inclined surface; 120. First connecting part; 121. First connecting lug; 122. First connecting through hole; 130. First operating part; 131. First spring plate slot; 140. First clamping tooth; 141. Connecting piece; 142. Protruding tooth; 150. Multi-stage anti-slip rib;

[0037] 200. lower clamping piece; 210. second clamping portion; 211. limiting member; 212. second inclined surface; 220. second connecting portion; 221. second connecting lug; 222. second connecting through hole; 230. first operating portion; 231. second spring sheet groove; 232. limiting ridge; 240. second clamping tooth;

[0038] 300. Connecting shaft;

[0039] 400. shrapnel; 410. groove; 420. first elastic arm; 430. second elastic arm;

[0040] 500. Blood vessels. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0042] In order to improve the clamping tightness of the blood blocking clamp and increase the clamping force between the first clamp and the second clamp, in the prior art, conventional technical ideas such as increasing the elastic force between the first clamp and the second clamp or adding convex teeth on the clamping surfaces of the first clamp and the second clamp are usually adopted to increase the clamping force of the blood blocking clamp or increase the friction between the blood blocking clamp and the clamped tissue.

[0043] See also Figure 1 and Figure 2 , which shows an example of the disposable single blood blocking clip provided by the present invention.

[0044] As can be seen from the figure, the disposable single blood blocking clamp of this example mainly includes a first clip, a second clip, a connecting shaft 300 and an elastic component.

[0045] Here, the upper clip 100 serves as the first clip, and the lower clip 200 serves as the second clip. The upper clip 100 and the lower clip 200 are arranged opposite to each other, and the spring sheet 400 serves as an elastic component, which is arranged between the upper clip 100 and the lower clip 200. The upper clip 100, the lower clip 200 and the spring sheet 400 are connected by the connecting shaft 300 to form a blood blocking clamp as a whole. The spring sheet 400 can form an elastic tension between the upper clip 100 and the lower clip 200, and drive the upper clip 100 and the lower clip 200 to move toward each other under the action of the elastic force, so that the clamping parts at the ends of the upper clip 100 and the lower clip 200 abut against each other to form a clamping structure, thereby clamping the blood vessel 500.

[0046] It should be noted here that the spring piece 400 may also be replaced by other elastic elements as long as elastic tension can be formed between the upper clip 100 and the lower clip 200 .

[0047] Specifically, see Figure 3 The upper clamping piece 100 includes a first clamping portion 110 arranged at an end, a first connecting portion 120 in the middle and a first operating portion 130 at the other end. The first clamping portion 110, the first connecting portion 120 and the first operating portion 130 are preferably in an integrated structure, so that when the first operating portion 130 moves vertically upward around the first connecting portion 120, the first clamping portion 110 can move vertically downward around the first connecting portion 120, so that the first clamping portion 110, the first connecting portion 120 and the first operating portion 130 of the upper clamping piece 100 as a whole constitute a rotating structure around the first connecting portion 120.

[0048] The first connecting portion 120 of the upper clip 100 is provided with first connecting lugs 121 on both sides of the middle part, and the first connecting lugs 121 on both sides are provided with communicating first connecting through holes 122 .

[0049] In coordination therewith, the lower clamp 200 includes a second clamping portion 210 arranged at an end, a second connecting portion 220 in the middle and a second operating portion 230 at the other end. The second clamping portion 210, the second connecting portion 220 and the second operating portion 230 are preferably an integrated structure, so that when the second operating portion 230 moves vertically downward around the second connecting portion 220, the second clamping portion 210 can move vertically upward around the second connecting portion 220, thereby making the second clamping portion 210, the second connecting portion 220 and the second operating portion 230 of the lower clamp 200 as a whole constitute a rotating structure around the second connecting portion 220.

[0050] Furthermore, the second clamping surface of the second clamping portion 210 always remains a straight surface, second connecting lugs 221 are provided on both sides of the middle of the second connecting portion 220, and communicating second connecting through holes 222 are provided in the second connecting lugs 221 on both sides.

[0051] In order to connect and cooperate the upper clip 100 and the lower clip 200 with each other, the upper clip 100 and the lower clip 200 are arranged relative to each other, one end of the connecting shaft 300 passes through the first connecting hole 122 in the first connecting lug 121 on the first connecting portion 120 of the upper clip 100, and the other end passes through the second connecting hole 222 in the second connecting lug 221 on the second connecting portion 220 of the lower clip 200, so that the upper clip 100 and the lower clip 200 are connected through the connecting shaft 300.

[0052] Furthermore, the spring sheet 400 is arranged between the first operating part 130 of the upper clip 100 and the second operating part 230 of the lower clip 200, and can generate elastic tension between the first operating part 130 and the second operating part 230, and then drive the first operating part 130 of the upper clip 100 and the second operating part 230 of the lower clip 200 to move back to back around the connecting part, and at the same time drive the first clamping part 110 of the upper clip 100 and the second clamping part 210 of the lower clip 200 to move relative to each other around the connecting part. When the first clamping part 110 and the second clamping part 210 abut against each other, an elastic clamping force can be formed between the two, and then drive the first clamping part 110 and the second clamping part 210 to form a clamping closure.

[0053] Specifically, the spring sheet 400 is U-shaped, with a groove 410 at the bottom, and a first elastic arm 420 and a second elastic arm 430 extending along both ends of the groove 410 respectively. The groove 410 of the spring sheet 400 is inserted into the connecting shaft 300. At the same time, the first elastic arm 420 abuts against the first operating part 130 of the upper clip 100, and the second elastic arm 430 abuts against the second operating part 230 of the lower clip 200.

[0054] Thus, when the first operating part 130 and the second operating part 230 are pressed synchronously and move relative to each other, the first operating part 130 and the second operating part 230 compress the first elastic arm 420 and the second elastic arm 430 respectively, and the first elastic arm 420 and the second elastic arm 430 are deformed and store elastic force; at the same time, the first clamping part 110 and the second clamping part 210 are synchronously driven to move in opposite directions around the connecting part, so that the first clamping part 110 and the second clamping part 210 are in an open state.

[0055] Furthermore, when the first operating part 130 and the second operating part 230 are released, the first operating part 130 and the second operating part 230 lose the pressure facing the spring sheet 400, and the first elastic arm 420 and the second elastic arm 430 of the spring sheet 400 release the elastic force based on their own restoring elastic force, thereby forming an elastic tension on the first operating part 130 and the second operating part 230, thereby driving the first operating part 130 and the second operating part 230 to move in the opposite directions around the connecting part; at the same time, the first clamping part 110 and the second clamping part 210 are synchronously driven to move relative to each other around the connecting part, so that the first clamping part 110 and the second clamping part 210 can be abutted and clamped to be in a clamped closed state.

[0056] See also Figure 3 On the basis of the above solution, the first clamping portion 110 in the upper clamping piece 100 in this embodiment is a deformable elastic component as a whole, and the first clamping surface thereon is an arc-shaped surface in the initial state. As a preferred setting, the first clamping portion 110 can be an arc-shaped as a whole in the initial state.

[0057] Furthermore, the first clamping portion 110 can produce a certain elastic deformation under the action of external force (such as the elastic tension generated by the spring piece 400); it can also restore to the initial state based on its own elastic restoring force when the external force (such as the elastic tension generated by the spring piece 400) is lost.

[0058] Furthermore, the outer end of the first clamping portion 110 is a first inclined surface 111 inclined toward the middle of the first clamping portion 110 , which is used to cooperate with the limiting member 211 on the second clamping portion 210 to form a self-locking structure.

[0059] In coordination therewith, the second clamping portion 210 on the lower clamping piece 200 in this embodiment is a hard portion as a whole, and the second clamping surface thereon always remains a flat surface.

[0060] Furthermore, a stopper 211 is disposed at the end of the second clamping portion 210 for cooperating with the first inclined surface 111 at the outer end of the first clamping portion 110 to form a self-locking structure.

[0061] Specifically, the stopper 211 is in the shape of a hook protruding from the second clamping portion 210, and has a second inclined surface 212 formed at the outer end thereof, which is inclined toward the middle of the second clamping portion 210. The second inclined surface 212 can be adapted to the first inclined surface 111, and when the two are in contact, they are flat against each other to form a self-locking structure, such as Figure 5 shown.

[0062] When a clamping structure is formed between the first clamping portion 110 and the second clamping portion 210 under the action of the elastic tension generated by the spring sheet 400, the spring sheet 400 forms an elastic tension between the first operating portion 130 and the second operating portion 230, which can drive the first clamping portion 110 and the second clamping portion 210 to move relative to each other around the connecting portion, thereby forming an elastic clamping force between the first clamping portion 110 and the second clamping portion 210, so that the first clamping portion 110 moves toward the second clamping portion 210 based on the elastic clamping force.

[0063] Further, as the first clamping portion 110 moves toward the second clamping portion 210, the bottom end of the first clamping portion 110 abuts against the second clamping portion 210. At this time, the first clamping portion 110 is in the initial first form, the first clamping surface thereon is an initial arc-shaped surface, and a gap is left in the middle of the first clamping portion 110 and the second clamping portion 210, and they do not abut against each other. Figure 4 shown.

[0064] Then, based on the continuous action of the elastic tension formed by the spring piece 400, the first clamping part 110 will continue to move toward the second clamping part 210. After the first clamping part 110 contacts the second clamping surface of the second clamping part 210, it will undergo elastic deformation based on the second clamping surface of the second clamping part 210, and the whole will deform and stretch along the second clamping surface of the second clamping part 210 toward the limiting piece 211 on the second clamping part 210 until the first inclined surface 111 at the top of the first clamping part 110 abuts against the second inclined surface 212 of the limiting piece 211 at the end of the second clamping part 210. At this time, the first clamping part 110 as a whole is in the second form after deformation and stretching.

[0065] When the first clamping portion 110 is deformed and stretched from the initial first form to the second form along the second clamping surface of the second clamping portion 210, the first clamping surface on the first clamping portion 110 will deform and stretch synchronously with the overall deformation and stretching of the first clamping portion 110, extending from the initial arc-shaped surface to a straight surface, and can be flatly abutted against the second clamping surface of the second clamping portion 210 to form a clamping structure between the two.

[0066] Furthermore, as the first clamping portion 110 is deformed and stretched from the initial first form to the second form along the second clamping surface of the second clamping portion 210, the first inclined surface 111 at the end of the first clamping portion 110 will abut against the second inclined surface 212 of the limiting piece 211 at the end of the second clamping portion 210. Since the second inclined surface 212 is inclined toward the middle direction of the second clamping portion 210 and is adapted to the first inclined surface 111, the second inclined surface 212 can limit the axial and vertical movement of the first inclined surface 11, so that the first clamping portion 110 is restricted by the limiting piece 211 and cannot continue to move axially and vertically under the action of the elastic force, so that the movement of the first clamping portion 110 is limited. At the same time, the first inclined surface 111 remains in contact with the second inclined surface 212 under the action of the elastic force, so that the first clamping portion 110 and the second clamping portion 210 form a self-locking structure, and the first clamping portion 110 is deformed from the first to the second form, thereby achieving stable clamping of the blood vessel. Figure 5 shown.

[0067] In this embodiment, the first clamping portion 110 is configured to be elastically deformable, so that the first clamping portion 110 can be directionally deformed and stretched along the second clamping surface of the second clamping portion 210 in a hard state under the action of elastic tension. In the process of deformation and stretching from the first form to the second form, the first clamping surface on the first clamping portion 110 is finally formed by an arc surface into a plane that is compatible with the second clamping surface of the second clamping portion 210, and the two are fitted to form a stable clamping structure; at the same time, the first clamping portion 110 and the second clamping portion 210 in the second form synchronously form a self-locking structure, lock the clamping structure formed between the first clamping portion 110 and the second clamping portion 210, maintain the clamping state, and further ensure the stability of the formed clamping structure.

[0068] Since the tension generated by the spring sheet 400 is in a continuous state, in the absence of other external forces, the first clamping portion 110 and the second clamping portion 210 will maintain the clamping state locked by the self-locking structure.

[0069] When the clamping state of the first clamping portion 110 and the second clamping portion 210 needs to be released, it is only necessary to press the first operating portion 130 on the upper clamping piece 100 and the second operating portion 230 on the lower clamping piece 200 to overcome the elastic tension generated by the spring sheet 400 and compress the first elastic arm 420 and the second elastic arm 430 of the spring sheet 400 respectively, so that the first clamping portion 110 loses the elastic tension effect. At this time, the first clamping portion 110 will automatically recover from the second state in the extended state to the first state based on the elastic restoring force generated by its own deformation, such as Figure 4 shown.

[0070] At this time, the first clamping portion 110 will retract as a whole toward the first operating portion 130, and the first clamping surface thereon will simultaneously retract and deform from a flat surface to an initial arcuate surface, and the first clamping surface and the second clamping surface are no longer flat, thereby releasing the clamping state of the first clamping portion 110 and the second clamping portion 210; at the same time, as the first clamping portion 110 retracts from the extended state toward the first operating portion 130, the first inclined surface 111 of the first clamping portion 110 will synchronously disengage from the second inclined surface 212 of the limiting member 211 of the second clamping portion 210, and the two are no longer abutted, and the first inclined surface 111 is no longer restricted by the second inclined surface 212 and can move axially and vertically, so that the first clamping portion 110 is not restricted by the limiting member 211 and can move axially and vertically, thereby releasing the self-locking structure of the first clamping portion 110 and the second clamping portion 210, so that the first clamping portion 110 can rotate freely relative to the second clamping portion 210.

[0071] Here, when the first clamping portion 110 is in the first form and the first clamping surface thereon is an arc-shaped surface, the spacing of the gaps left in the middle of the first clamping portion 110 and the second clamping portion 210 needs to be adapted to the diameter of the blood vessel 500, so that the blood vessel 500 can be clamped by the first clamping portion 110 and the second clamping portion 210. At the same time, when the first clamping portion stretches and deforms from the first form 110 to the second form, the length of the first clamping portion 110 needs to be adapted to the length of the second clamping portion 210, so that the first clamping surface of the first clamping portion 110 and the second clamping surface of the second clamping portion 210 can fit tightly to form a clamping structure, and the first inclined surface 111 of the first clamping portion 110 can abut against the second inclined surface 212 of the limiter 211 of the second clamping portion 210 to form a self-locking structure, thereby firmly clamping the blood vessel 500.

[0072] See also Figure 6 and Figure 7 In order to improve the clamping tightness of the first clamping part 110 and the second clamping part 210, a plurality of first clamping teeth 140 and a second clamping teeth 240 are respectively provided on the first clamping surface of the first clamping part 110 and the second clamping surface of the second clamping part 210. The first clamping teeth 140 and the second clamping teeth 240 are arranged alternately at intervals, and there is a sufficient interval between two adjacent first clamping teeth 140 and second clamping teeth 240 to adapt to the extension deformation of the first clamping surface along the second clamping surface, so that the first clamping surface and the second clamping surface are flatly abutted against each other. The first clamping teeth 140 and the second clamping teeth 240 are engaged with each other, and there is a gap between the first clamping teeth 140 and the second clamping teeth 240, so that when the first clamping part 110 and the second clamping part 210 abut against each other, when the first clamping surface is deformed and moves axially on the second clamping surface, the abutting friction between the two adjacent first clamping teeth 140 and the second clamping teeth 240 is small, and at the same time, the abutting tightness between the first clamping part 110 and the second clamping part 210 can be improved, effectively improving the stability and firmness of the clamped blood vessel 500.

[0073] For details, see Figure 8 The first clamping tooth 140 and the second clamping tooth 240 have the same structure. Taking the first clamping tooth 140 as an example, the first clamping tooth 140 includes a connecting piece 141 for connecting the first clamping part 110 and a convex tooth 142 arranged on the connecting piece 141. The cross-section of the convex tooth 142 is trapezoidal, so that when the first clamping tooth 140 and the second clamping tooth 240 are engaged with each other, the first clamping tooth 140 and the second clamping tooth 240 can be embedded with each other, so that the first clamping tooth 140 and the second clamping tooth 240 are tightly engaged, increasing the contact area with the blood vessel 500 and improving the clamping firmness of the blood vessel 500.

[0074] In order to limit the elastic force of the spring piece 400 and make the elastic force of the spring piece 400 moderate, so that the first clamping part 110 and the second clamping part 210 can abut against each other to clamp the blood vessel 500, and at the same time, the clamping force between the first clamping part 110 and the second clamping part 210 will not be too large to cause damage to the blood vessel wall tissue and the endothelium, nor will it be too small to cause blood vessel leakage, spring piece grooves that can accommodate and limit the spring piece 400 are provided on the opposite surfaces of the first operating part 130 of the upper clamp 100 and the second operating part 230 of the lower clamp 200.

[0075] Specifically, further combining Figure 3 , Figure 6 and Figure 7 A first spring clip groove 131 is provided on one side of the first operating portion 130 of the upper clip 100 relative to the lower clip 200, and a limiting ridge is provided at the end of the first spring clip groove 131, so that the first elastic arm 420 of the spring clip 400 abuts against the first spring clip groove 131 and is restricted by the limiting ridge so as not to fall off from the first spring clip groove 131.

[0076] Correspondingly, a second operating portion 230 of the lower clip 200 is provided with a second spring clip groove 231 on one side relative to the upper clip 100, and a limiting ridge 232 is also provided at the end of the second spring clip groove 231, so that the second elastic arm 430 of the spring clip 400 abuts against the second spring clip groove 231 and is restricted by the limiting ridge 232 so as not to fall off from the second spring clip groove 131.

[0077] Furthermore, the depth of the first spring clip groove 131 and the second spring clip groove 231 is associated with the elastic tension that can be released by the spring clip 400. The deeper the first spring clip groove 131 and the second spring clip groove 231 are, the greater the distance that the first elastic arm 420 and the second elastic arm 430 of the spring clip 400 can move relative to each other, and the greater the elastic tension of the spring clip 400, thereby increasing the clamping force between the first clamping portion 110 and the second clamping portion 210.

[0078] Therefore, the depth of the first spring clip groove 131 and the second spring clip groove 231 can be adaptively adjusted according to the elastic clamping force required for the first clamping part 110 and the second clamping part 210 to abut against each other to form a clamping self-locking structure, so that the relative movement distance of the first elastic arm 420 and the second elastic arm 430 can make the elastic tension generated by the spring clip 400 large enough to ensure that the first clamping part 110 and the second clamping part 210 can abut against each other and firmly clamp the blood vessel 500, while not being too large to cause damage to the blood vessel wall tissue and the endothelium, nor too small to cause blood vessel leakage, thereby ensuring that the upper clamp 100 and the lower clamp 200 clamp the blood vessel 500 firmly and firmly.

[0079] Here, the elastic force of the spring clip 400 is preferably adapted to the force required for the first clamping portion 110 and the second clamping portion 210 to abut against each other and firmly clamp the blood vessel 500, so that the first elastic arm 420 and the second elastic arm 430 of the spring clip 400 will not continue to move after exceeding the depth of the first spring clip groove 131 and the second spring clip groove 231, causing the mutual clamping force between the first clamping portion 110 and the second clamping portion 210 to be too large, resulting in deformation of the first clamping portion 110 and the second clamping portion 210.

[0080] Furthermore, the first operating portion 130 of the upper clip 100 and the second operating portion 230 of the lower clip 200 are both provided with multi-stage anti-slip ribs 150, such as Fig. 9 As shown, the friction between the user's fingers and the first operating part 130 and the second operating part 230 is increased, so that the user's fingers are not easy to slip when pressing the first operating part 130 and the second operating part 230, thereby improving the working stability of the blood blocking clamp.

[0081] Thus, the disposable single blood blocking clip of this example can be used to stably clamp the blood vessel 500. Fig.10 shown.

[0082] The following examples illustrate the working process of the present invention in a specific application. It should be noted that the following content is only a specific application example of the present solution and does not constitute a limitation to the present solution.

[0083] Combination Fig.10 The user presses the first operating part 130 and the second operating part 230 synchronously through the multi-stage anti-slip ribs 150 to drive the first operating part 130 and the second operating part 230 to move relative to each other. The first operating part 130 and the second operating part 230 compress the first elastic arm 420 and the second elastic arm 430 of the spring sheet 400, so that the first elastic arm 420 and the second elastic arm 430 are deformed and elastic tension is generated between the first clamping part 110 and the second clamping part 210, and the first clamping part 110 and the second clamping part 210 are synchronously driven to move in opposite directions, so that the first clamping part 110 and the second clamping part 210 are in an open state.

[0084] The blood vessel 500 is placed on the second clamping portion 210 of the lower clamp 200, and the first operating portion 130 and the second operating portion 230 are released. The first operating portion 130 and the second operating portion 230 lose the pressure facing the spring sheet 400, and the first elastic arm 420 and the second elastic arm 430 of the spring sheet 400 release the elastic force based on their own restoring elastic force, thereby forming an elastic tension on the first operating portion 130 and the second operating portion 230, and then driving the first operating portion 130 and the second operating portion 230 to move in the opposite directions around the connecting portion; at the same time, the first clamping portion 110 and the second clamping portion 210 are synchronously driven to move relative to each other around the connecting portion, so that the first clamping portion 110 and the second clamping portion 210 can be abutted and clamped to be in a clamped closed state.

[0085] At this time, the first clamping part 110 stretches and deforms along the second clamping part 210 under the action of elastic tension, and stretches and deforms from the first form to the second form, so that the first clamping surface of the first clamping part 110 and the second clamping surface of the second clamping part are flatly attached to form a clamping structure, and the end of the first clamping part and the end of the second clamping part cooperate and abut to form a self-locking structure, so that the first clamping part 110 and the second clamping part 210 abut against each other and self-lock, thereby firmly clamping the blood vessel 500.

[0086] At the same time, the first clamping teeth 140 on the first clamping part 110 and the second clamping teeth 240 on the second clamping part 210 engage with each other, thereby improving the abutment tightness between the first clamping part 110 and the second clamping part 210 and effectively improving the stability and firmness of the clamped blood vessel 500.

[0087] Furthermore, the spring 400 is restricted by the first spring slot 131 and the second spring slot 231 and no longer moves relative to each other, so that the abutment force between the first clamping portion 110 and the second clamping portion 210 no longer increases, thereby maintaining a firm clamping of the blood vessel 500 .

[0088] When the blood vessel 500 needs to be released, the first operating part 130 and the second operating part 230 are pressed synchronously so that the first operating part 130 and the second operating part 230 compress the first elastic arm 420 and the second elastic arm 430 of the spring sheet 400 respectively, so as to offset the elastic tension generated by the spring sheet 400, thereby making the first clamping part 110 lose the elastic tension effect, and recover from the second form to the first form under the action of its own elastic restoring force, thereby releasing the clamping state of the first clamping part 110 and the second clamping part 210, and synchronously releasing the self-locking structure formed between the first clamping part 110 and the second clamping part 210.

[0089] The disposable single blood-blocking clamp provided by the present invention has a plurality of first clamping teeth 140 on the first clamping portion 110 of the upper clamp 100, a plurality of second clamping teeth 240 on the second clamping portion 210 of the lower clamp 200, and a limit piece 211 is provided at the end to form a clamping self-locking structure after closing with the first clamping portion 110 of the upper clamp 100, so that when clamping the blood vessel 500, the blood-blocking clamp can be clamped firmly; at the same time, the two elastic arms of the spring clip 400 respectively abut against the first spring clip groove 131 and the second spring clip groove 231, which can further ensure the stability and firmness of the clamping force of the blood-blocking clamp, and the matching elasticity of the spring clip 400 and the spring clip groove can ensure that the clamping force is moderate, thereby preventing damage to the vascular wall tissue and the endothelium or bleeding during use.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A disposable single blood blocking clip, comprising a first clip and a second clip that are arranged in cooperation with each other and an elastic component, wherein the first clip comprises a first clamping portion and a first operating portion, and the second clip comprises a second clamping portion and a second operating portion, and the elastic component is arranged to cooperate with the first operating portion of the first clip and the second operating portion of the second clip, and can form an elastic clamping force between the first clamping portion of the first clip and the second clamping portion of the second clip; It is characterized in that The first clamping surface of the first clamping portion is an arc-shaped surface in an initial state, and the second clamping surface of the second clamping portion always remains a flat surface; The first clamping portion can move toward the second clamping portion based on the elastic tension formed by the elastic component, so that the first clamping surface of the first clamping portion abuts against the second clamping surface of the second clamping portion, and under the continuous action of the elastic tension, the first clamping portion can deform and extend along the second clamping surface of the second clamping portion, deforming and extending from the first form to the second form, and in the second form, the first clamping surface of the first clamping portion can be flat against the second clamping surface of the second clamping portion to form a clamping structure, and the end of the first clamping portion abuts against the end of the second clamping portion to form a self-locking structure; A stopper is provided at the end of the second clamping portion, and the stopper is configured so that when the first clamping portion is in the second state, the stopper abuts against the first clamping portion to limit the movement of the first clamping portion; the end of the first clamping portion is a first inclined surface, the stopper is in a hook shape, and a second inclined surface matching the first inclined surface is formed at the end When the first operating part and / or the second operating part is subjected to force, so that the first clamping part loses the elastic clamping force formed by the elastic component, it can recover from the second form to the first form, so that the end of the first clamping part and the end of the second clamping part no longer abut against each other, and the self-locking structure formed between the first clamping part and the second clamping part is synchronously released.

2. The disposable single blood blocking clip according to claim 1, characterized in that: The elastic component is composed of a U-shaped spring sheet, a groove is provided at the bottom of the spring sheet, and a first elastic arm and a second elastic arm are formed along the two ends of the groove.

3. The disposable single blood blocking clip according to claim 2, characterized in that: The first clip and the second clip also include a first connecting portion and a second connecting portion respectively arranged in the middle of the first clip and the second clip, and a connecting shaft passes through the first connecting portion and the second connecting portion and is clamped in the bottom groove of the elastic sheet.

4. The disposable single blood blocking clip according to claim 2, characterized in that: A first elastic sheet groove for accommodating and limiting the first elastic arm of the elastic sheet and a second elastic sheet groove for accommodating and limiting the second elastic arm of the elastic sheet are respectively provided on the opposite surfaces of the first operating portion and the second operating portion.

5. The disposable single blood blocking clip according to claim 4, characterized in that: The ends of the first elastic arm and the second elastic arm are provided with limiting ridges.

6. The disposable single blood blocking clip according to claim 4, characterized in that: The first operating part and the second operating part are respectively provided with anti-slip ribs.

7. The disposable single blood blocking clip according to claim 1, characterized in that: The first clamping part and the second clamping part have a plurality of clamping teeth arranged on their opposite clamping surfaces and distributed at staggered intervals.

8. The disposable single blood blocking clip according to claim 7, characterized in that: The clamping teeth are composed of a connecting piece and a convex tooth arranged on the connecting piece, and the cross section of the convex tooth is trapezoidal.

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