A disposable double blood blocking clip with frame

Abstract

The present invention discloses a disposable double-blood-blocking clamp with a frame, comprising an expansion frame, wherein the expansion frame is configured to form an expansion wall on the outside, and suture hooks for cooperating with sutures are provided at both ends of the expansion wall, so that when a doctor sutures a blood vessel, the suture hooks can be used to assist in fixing the suture, which is convenient for knotting, thereby improving operation efficiency, and an operation area and a connection area are formed inside the expansion frame; at least one clamp body is matched with the connection area of ​​the expansion frame and is built into the expansion frame, so that the clamping part of the clamp body is matched with the operation area of ​​the expansion frame, and the expansion wall of the expansion frame props up the tissue in the operation area to expose the blood vessel in the operation area, so that the clamping part of the clamp body can operate on the blood vessel in the operation area, providing a wide operation field of view for the doctor.

Description

Technical Field

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

[0002] A blood clamp is a medical device frequently used by doctors during surgery. It is used to clamp blood vessels to prevent blood from flowing out of disconnected blood vessels. The blood clamp is 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 and form a blood clot during use. If the clamping force is too small, bleeding is likely to occur.

[0003] Conventional blood-blocking clamps usually have a spring between the upper and lower clamp bodies, so that the spring drives the upper and lower clamp bodies to close, clamp and seal the blood vessels. At the same time, the existing blood-blocking clamps are usually used alone, and the clamping firmness of the blood vessels is unstable. After the blood-blocking clamp is used to clamp the blood vessels, it will hinder the doctor's operating field, affecting the doctor's operation on other tissues and the suturing of the blood vessels.

[0004] Therefore, how to effectively improve the clamping stability of the blood-blocking clip and expand the doctor's operating field of view has become an urgent problem to be solved in this field. Summary of the invention

[0005] In view of the defects of the prior art, the object of the present invention is to provide a disposable double-blood-blocking clamp with a frame which can improve the clamping stability and expand the operating field of view.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a disposable double blood blocking clip with a frame, an expansion frame, wherein the expansion frame is configured to have an expansion wall formed on the outside, suture hooks for cooperating with sutures are provided at both ends of the expansion wall, and an operation area and a connection area are formed inside.

[0007] At least one clamp body, which cooperates with the connection area of ​​the expansion frame and is built into the expansion frame so that the clamping portion of the clamp body cooperates with the operating area of ​​the expansion frame, and the expansion wall of the expansion frame stretches the tissue of the operating area to expose the clamped object in the operating area, so that the clamping portion of the clamp body can operate the clamped object in the operating area.

[0008] Further, the clamp body includes a first clamp body and a second clamp body, the first clamp body and the second clamp body are arranged side by side in the expansion frame, and a connecting shaft passes through the first clamp body and the second clamp body to connect the connection area of ​​the expansion frame.

[0009] Further, the clamp body includes a first clamp and a second clamp that are arranged in cooperation with each other, and an elastic component, the first clamp includes a first clamping portion and a first operating portion, the second clamp includes 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 clamp and the second operating portion of the second clamp, and can form an elastic clamping force between the first clamp and the second clamp;

[0010] When the first clamping portion abuts against the second clamping portion to form a clamping structure based on the elastic clamping force, the first clamping portion can be stretched and deformed from the first form to the second form along the second clamping portion under the action of the elastic clamping force, and form a self-locking structure with the second clamping portion in the second form;

[0011] When the first clamping portion loses the elastic clamping force, it can be restored from the second state to the first state, and the self-locking structure formed between the first clamping portion and the second clamping portion is simultaneously released. Further, the expansion frame is composed of a first frame and a second frame that are connected and matched with each other, and the first frame and the second frame are arranged relative to each other and both include a concave expansion wall.

[0012] Furthermore, the first frame is extended along two ends of the expansion wall to form a first suturing hook, and the second frame is extended along two ends of the expansion wall to form a second suturing hook.

[0013] Further, the first frame and the second frame are connected and matched so that the first suturing hook and the second suturing hook cooperate to form a U shape.

[0014] Furthermore, positioning pins are provided at the bottoms of both ends of the first frame, and positioning holes matched with the positioning pins are provided at both ends of the second frame.

[0015] Further, a first inclined abutting surface is formed on a bottom surface area where the first frame cooperates with the second frame, and a second abutting surface matched with the first abutting surface is formed on a top surface area where the second frame cooperates with the first frame.

[0016] Furthermore, the middle bottom surfaces of the first frame and the second frame are both provided with connecting plates, and the connecting plates are provided with connecting holes matched with the connecting shafts.

[0017] Furthermore, the first clamp body and the second clamp body can move axially along the connecting axis.

[0018] The disposable double-blood-blocking clamp with a frame provided by the present invention adopts a connection area between the clamp body and the expansion frame and is built into the expansion frame, so that the clamping part of the clamp body cooperates with the operating area of ​​the expansion frame. The expansion wall of the expansion frame can expand and stretch other tissues in the operating area during use, exposing the blood vessels and tissues in the operating area, providing a wide operating field for doctors. Suture hooks are also provided at both ends of the expansion frame, so that when the doctor sutures the blood vessels, the suture hooks can be used to assist in fixing the sutures, which is convenient for knotting, thereby improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the disposable double blood blocking clamp with frame provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the expansion frame in the present invention;

[0022] Figure 3 It is a schematic diagram of the decomposition structure of the expansion framework in the present invention;

[0023] Figure 4 This is a schematic diagram of the exploded structure of the disposable double blood blocking clamp with frame in the present invention;

[0024] Figure 5 It is a schematic diagram of the exploded structure of the first clamp in the present invention;

[0025] Figure 6 and Figure 7 It is a schematic diagram of the cooperation between the first clamping part and the second clamping part in the present invention;

[0026] Figure 8 A schematic diagram of the cooperation between the first clamping part and the second clamping part and the blood vessel in the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the upper clip in the present invention;

[0028] Fig.10 It is a structural schematic diagram of the lower clip in the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the clamping teeth in the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the first operating part and the second operating part in the present invention.

[0031] Reference numerals:

[0032] 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;

[0033] 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;

[0034] 300. Connecting shaft;

[0035] 400. shrapnel; 410. groove; 420. first elastic arm; 430. second elastic arm;

[0036] 500. Blood vessels;

[0037] 600. Clamp; 610. First clamp; 620. Second clamp;

[0038] 700. Expansion frame; 701. Operation area; 702. Connection area; 710. First frame; 711. First expansion wall; 712. Positioning pin; 713. First suturing hook; 714. First connecting plate; 715. First abutting surface; 720. Second frame; 721. Second expansion wall; 722. Positioning hole; 723. Second suturing hook; 724. Second connecting plate; 725. Connection hole; 726. Second abutting surface. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1 , which shows an example of a disposable double blood blocking clip with frame provided by the present invention.

[0041] As can be seen from the figure, the disposable double-blood-blocking clamp with frame of this example mainly includes a clamp body 600, an expansion frame 700 and a connecting shaft 300.

[0042] The expansion frame 700 is configured to have an expansion wall formed on the outside, and suture hooks for cooperating with sutures are provided at both ends of the expansion wall, so that when the doctor sutures the blood vessel 500, the suture hooks can be used to assist in fixing the sutures, which is convenient for knotting, thereby improving the operation efficiency. An operation area 701 and a connection area 702 are formed inside the expansion frame 700, so that the clamp body 600 can cooperate with the connection area 702 of the expansion frame 700 through the connecting shaft 300, and is built into the expansion frame 700. The clamping part of the clamp body 600 cooperates with the operation area 701 of the expansion frame 700, so that when the expansion wall stretches the tissue in the operation area 701, the blood vessel is exposed in the operation area 701, providing the doctor with a wide operation field of view, so that the clamping part of the clamp body 600 can operate on the blood vessel in the operation area 701.

[0043] Among them, see Figure 2 and Figure 3 The expansion frame 700 is composed of a first frame 710 and a second frame 720 that are connected and matched with each other. The first frame 710 includes a concave first expansion wall 711, and positioning pins 712 are provided at the bottom of both ends of the first expansion wall 711. The second frame 720 includes a concave second expansion wall 721, and positioning holes 722 that match the positioning pins 712 are provided at both ends of the second expansion wall 721, so that when the first frame 710 and the second frame 720 are arranged relative to each other, the positioning pins 712 at the bottom of the first frame 710 can be inserted into the positioning holes 722 of the second frame 720, thereby connecting the first frame 710 and the second frame 720.

[0044] Further, the bottom surface area where the first frame 710 and the second frame 720 cooperate is formed with an inclined first abutment surface 715, and the first abutment surface 715 extends to the areas on both sides of the positioning shaft pin 712, so that the areas on both sides of the positioning shaft pin 712 have a slope structure with a gradually decreasing thickness, and the top surface area where the second frame 720 and the first frame 710 cooperate is formed with a second abutment surface 726 adapted to the first abutment surface 715, and the second abutment surface 726 extends to the areas on both sides of the positioning hole 722, so that the areas on both sides of the positioning hole 722 have a slope structure with a gradually decreasing thickness. , so that the first frame 710 and the second frame 720 are arranged relative to each other, when the positioning shaft pin 712 at the bottom of the first frame 710 is inserted into the positioning hole 722 of the second frame 720, the first abutting surface 715 and the second abutting surface 726 abut against each other, and since the two side areas of the positioning shaft pin 712 and the positioning hole 722 are in a slope structure, the thickness of the connection between the first frame 710 and the second frame 720 will not be increased. After the first frame 710 and the second frame 720 are connected, they have a smooth and straight structure, so that the connection and matching structure of the first frame 710 and the second frame 720 are flat.

[0045] At the same time, the inclined first abutting surface 715 and the second abutting surface 726 abut against each other, which can increase the friction between the first abutting surface 715 and the second abutting surface 726 , thereby improving the connection stability of the first frame 710 and the second frame 720 .

[0046] Furthermore, since the first expansion wall 711 and the second expansion wall 721 are concave, the first frame 710 and the second frame 720 are connected and cooperated to form an operating area 701 and a connecting area 702 inside which can accommodate the connecting clamp body 600, so that when the clamp body 600 clamps the blood vessel 500 in the operating area 701, the first expansion wall 711 and the second expansion wall 721 can cooperate to expand and stretch the tissue, thereby expanding the doctor's operating field of view.

[0047] Furthermore, the first frame 710 extends outward along both ends of the first expansion wall 711 to form a first suture hook 713, and the second frame 720 extends outward along both ends of the second expansion wall 721 to form a second suture hook 723, so that after the first frame 710 and the second frame 720 are connected, the first suture hook 713 and the second suture hook 723 cooperate to form a U shape, which is convenient for the doctor to use the first suture hook 713 and the second suture hook 723 to assist in fixing the suture when suturing the blood vessel 500, facilitate knotting, and thus improve operating efficiency.

[0048] In order to enable the expansion frame 700 to be connected and cooperated with the clamp body 600 to fix the clamp body 600, a first connecting plate 714 is provided on the middle bottom surface of the first expansion wall 711 of the first frame 710, and a second connecting plate 724 is provided on the middle bottom surface of the second expansion wall 721 of the second frame 720 at a position corresponding to the first connecting plate 714, and a connecting hole 725 is provided in the first connecting plate 714 and the second connecting plate 724. The connecting hole 725 is adapted to the connecting shaft 300 so that the connecting shaft 300 can pass through the connecting hole on the first connecting plate 714, the connecting hole 725 on the clamp body 600 and the second connecting plate 724 in sequence, thereby fixing the expansion frame 700 and the clamp body 600, so that when the clamp body 600 clamps the blood vessel in the expansion frame 700, the expansion frame 700 can expand and stretch the tissue outside the clamp body 600 to expand the operating field.

[0049] In coordination therewith, the clamp body 600 includes a first clamp body 610 and a second clamp body 620 arranged in parallel in the expansion frame 700, and the expansion frame 700 is connected by a connecting shaft 300 passing through the first clamp body 610 and the second clamp body 620, so that the first clamp body 610 and the second clamp body 620 can clamp the blood vessel 500 synchronously, thereby improving the clamping stability and firmness.

[0050] The first clamping body 610 and the second clamping body 620 have the same structure, and the first clamping body 610 is taken as an example.

[0051] See also Figure 4 and Figure 5 The first clamp body 610 mainly includes a first clamp, a second clamp and a spring piece 400, wherein the first clamp constitutes the upper clamp 100 in this example, and the second clamp constitutes the lower clamp 200 in this example, the upper clamp 100 and the lower clamp 200 are arranged opposite to each other, the spring piece 400 is arranged between the upper clamp 100 and the lower clamp 200, and the upper clamp 100, the lower clamp 200 and the spring piece 400 are connected by the connecting shaft 300 to form the first clamp body 610, and the spring piece 400 can drive the upper clamp 100 and the lower clamp 200 to move toward each other under the action of elastic force, so that the clamping parts at the ends of the upper clamp 100 and the lower clamp 200 abut against each other, thereby clamping the blood vessel 500.

[0052] Specifically, the upper clip 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. First connecting lugs 121 are provided on both sides of the middle of the first connecting portion 120, and first connecting through holes 122 are provided in communication in the first connecting lugs 121 on both sides.

[0053] Furthermore, the lower clamp 200 includes a second clamping portion 210 arranged at the end, a second connecting portion 220 in the middle and a second operating portion 230 at the other end, and second connecting lugs 221 are provided on both sides of the middle of the second connecting portion 220, and connected second connecting through holes 222 are provided in the second connecting lugs 221 on both sides.

[0054] In order to connect and cooperate with each other, the upper clip 100 and the lower clip 200 are arranged relatively to each other, and the connecting shaft 300 passes through the first connecting through hole 122 in the first connecting lug 121 on the first connecting part 120 of the upper clip 100 and the second connecting through hole 222 in the second connecting lug 221 on the second connecting part 220 of the lower clip 200 in the first clamp body 610, so that the upper clip 100 and the lower clip 200 are connected through the connecting shaft 300, thereby connecting the upper clip 100 and the lower clip 200 to form the first clamp body 640.

[0055] Correspondingly, the connecting shaft 300 also passes through the first connecting through hole in the first connecting lug on the first connecting part of the upper clamp in the second clamp body 620 and the second connecting through hole in the second connecting lug on the second connecting part of the lower clamp, so that the upper clamp and the lower clamp are connected through the connecting shaft, thereby connecting the upper clamp and the lower clamp to form the second clamp body 620.

[0056] Thus, the connecting shaft 300 passes through the connecting hole on the first connecting plate 714 in the first frame 710, the connecting through hole of the upper clip 100 and the lower clip 200 of the first clamp body 610, the connecting through hole of the upper clip and the lower clip of the second clamp body 620, and the connecting hole 725 on the second connecting plate 724 in the second frame 720, connecting the first frame 710, the first clamp body 610, the second clamp body 620 and the second frame 720, thereby connecting the frame 700 and the clamp body 600 to form a blood-blocking clamp as a whole.

[0057] In order to enable the first clamp 610 and the second clamp 620 to cooperate to stably clamp the blood vessel 500, the first clamp 610 and the second clamp 620 can move axially along the connecting shaft 300 on the connecting shaft 300 through the connecting through holes of the upper clamp and the lower clamp to adjust the distance L between the first clamp 610 and the second clamp 620, thereby controlling the distance between the two clamping points of the first clamp 610 and the second clamp 620 respectively clamping the blood vessel 500.

[0058] Furthermore, in the first clamp body 610 and the second clamp body 620, the first connecting through hole 122 in the first connecting lug 121 of the upper clamp piece 100 is preferably a D-shaped hole with a straight top and a circular arc at the bottom, and the second connecting through hole 222 in the second connecting lug 221 of the lower clamp piece 200 is preferably a circular hole, and the connecting shaft 300 preferably has a D-shaped cross-section at the end and a long axis that is adapted to the first connecting through hole 122, so that the bottom of the first connecting through hole 122 can cooperate with the second connecting through hole 222, so that the connecting shaft 300 can smoothly pass through the second connecting through hole 222 and the second connecting through hole 222 along the bottom of the first connecting through hole 122 and the second connecting through hole 222. At the same time, the first clamp body 610 and the second clamp body 620 can move horizontally along the axial direction of the connecting shaft 300 through the first connecting through hole 122, and are not easily offset.

[0059] Furthermore, since the first connecting through hole 122 is a D-shaped hole and is compatible with the connecting shaft 300, the connection and cooperation between the first connecting through hole 122 and the connecting shaft 300 can effectively limit the first clamp body 610 and the second clamp body 620 from rotating around the connecting shaft 300, so that the first clamp body 610 and the second clamp body 620 are fixedly connected in the expansion frame 700.

[0060] Here, the distance L between the first clamp 610 and the second clamp 620 can preferably be adjusted to 2mm~40mm, so that when the exposed length of the blood vessel 500 is shorter, the distance between the first clamp 610 and the second clamp 620 is adjusted to a smaller distance, so as to clamp the end of the blood vessel 500 at two points, improve the clamping firmness of the blood vessel 500, and prevent blood vessel leakage; when the exposed length of the blood vessel 500 is longer, the distance between the first clamp 610 and the second clamp 620 is adjusted to a larger distance, so as to clamp the blood vessel 500 at two points along the length, and improve the clamping stability of the blood vessel 500.

[0061] Here, the first clamp 610 and the second clamp 620 can simultaneously clamp a blood vessel at two points to improve clamping reliability. The first clamp 610 and the second clamp 620 can also clamp two blood vessels separately by adjusting the distance to improve work efficiency and facilitate fixation and suturing of the two blood vessels.

[0062] Furthermore, in order to illustrate the specific structures of the first clamping body 610 and the second clamping body 620 , the first clamping body 610 is taken as an example.

[0063] The first clamping portion 110, the first connecting portion 120 and the first operating portion 130 of the first clamping body 610 are preferably 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, thereby making the first clamping portion 110, the first connecting portion 120 and the first operating portion 130 of the upper clip 100 as a whole form a seesaw motion state around the first connecting portion 120.

[0064] Furthermore, the second clamping portion 210, the second connecting portion 220 and the second operating portion 230 of the lower clamping piece 200 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 clamping piece 200 as a whole form a seesaw motion state around the second connecting portion 220.

[0065] In coordination therewith, 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 via the connecting shaft 300.

[0066] Furthermore, the spring sheet 400 is disposed between the upper clamping sheet 100 and the lower clamping sheet 200 , driving the upper clamping sheet 100 and the lower clamping sheet 200 to move toward each other, so that the upper clamping sheet 100 and the lower clamping sheet 200 can abut against each other and close.

[0067] 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.

[0068] Thus, when the first operating part 130 and the second operating part 230 are pressed synchronously to move the first operating part 130 vertically downward and the second operating part 230 vertically upward, 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 moves vertically upward and the second clamping part 210 moves vertically downward, so that the upper clamp 100 and the lower clamp 200 are in an open state.

[0069] Further, the first operating part 130 and the second operating part 230 are released, and the first elastic arm 420 and the second elastic arm 430 release their elastic force, thereby synchronously driving the first operating part 130 to move vertically upward and the second operating part 230 to move vertically downward, so that the first clamping part 110 moves vertically downward and the second clamping part 210 moves vertically upward, and the first clamping part 110 and the second clamping part 210 abut against each other, so that the upper clamping piece 100 and the lower clamping piece 200 are in a clamped closed state.

[0070] Furthermore, the first clamping surface of the first clamping portion 110 is in an arched shape when not under force, and 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, and the second clamping surface of the second clamping portion 210 is always kept straight, and a stopper 211 is provided at the end of the second clamping portion 210, and the stopper 211 is in a hook shape protruding from the second clamping portion 210, and a second inclined surface 211 is formed at the outer end to be inclined toward the middle of the second clamping portion 210 and adapted to the first inclined surface 111. 2, so that the first clamping portion 110 and the second clamping portion 210 move toward each other under the elastic force of the spring sheet 400, when the first clamping portion 110 abuts against the second clamping portion 210 to form a clamping structure based on the elastic force, under the action of the elastic force, it can be stretched and deformed from the first form to the second form along the second clamping portion 210, and form a self-locking structure with the second clamping portion in the second form; and when the first clamping portion 110 loses the elastic force, it can restore from the second form to the first form, and simultaneously release the self-locking structure formed between it and the second clamping portion 210.

[0071] Specifically, when the first clamping portion 110 and the second clamping portion 210 move toward each other under the elastic force of the spring sheet 400, the bottom end of the first inclined surface 111 of the first clamping portion 110 first abuts against the second clamping portion 210. At this time, 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 6 shown.

[0072] Furthermore, the spring piece 400 continuously releases elastic force. Since the bottom surface of the first inclined surface 111 at the end of the first clamping portion 110 is restricted by the second clamping portion 210 and cannot move vertically, the elastic force can only act on the middle part of the first clamping portion 110, causing the first clamping portion 110 to move axially. Under the action of the elastic force, the first clamping portion 110 first produces a downward displacement toward the second clamping portion 210 in the middle part of the first clamping surface, and produces a deformation with a trend of changing from a bow shape to a reverse bow shape, so that the middle part of the first clamping portion 110 and the second clamping portion 210 abut against each other, presenting the first form, thereby achieving a firm clamping of the blood vessel 500.

[0073] When the spring piece 400 continuously releases the elastic force, the first clamping portion 110 extends to both sides along the second clamping portion 210, changing from an arch shape to an inverted arch shape, and extending and deforming from the first form to the second form. At this time, the first inclined surface 111 of the first clamping portion 110 abuts against the second inclined surface 212 of the limiting member 211 of the second clamping portion 210, and the first inclined surface 111 is restricted by the second inclined surface 212 and cannot move axially and vertically, so that the first clamping portion 110 is restricted by the limiting member 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, so that the first clamping portion 110 and the second clamping portion 210 are interlocked, thereby achieving stable clamping of the blood vessel. Figure 7 shown.

[0074] At the same time, since the first clamping portion 110 is configured as an elastically deformable bow structure, under the action of elastic force, the middle part of the first clamping portion 110 is first subjected to a force toward the second clamping portion 210, so that the middle part of the first clamping surface moves toward the second clamping portion 210 and presents a first form. In the process of the first clamping portion 110 stretching and deforming along the second clamping portion 210 from the first form to the second form, the middle part of the first clamping portion 110 continues to be subjected to a force toward the second clamping portion 210, so that the first clamping portion 110 presents the second form and forms a self-locking structure with the second clamping portion 210, thereby increasing the clamping force between the first clamping portion 110 and the second clamping portion 210, thereby ensuring the stability of clamping the blood vessel 500.

[0075] Furthermore, when the clamping of the blood vessel 500 is completed and the blood vessel 500 needs to be released, and the self-locking structure formed between the first clamping part 110 and the second clamping part 210 is released, the first operating part 130 and the second operating part 230 are pressed synchronously to cause the first elastic arm 420 and the second elastic arm 430 to deform and store elastic force. At this time, the first clamping part 110 loses the elastic force, and the middle part of the first clamping part 110 loses the force toward the second clamping part 210, and the second form is released under the action of elastic deformation, so that the first clamping part 110 shrinks and deforms from the second form to the first form along the second clamping part 210, and changes from a reverse bow shape to a bow shape, presenting the first form.

[0076] At this time, the first clamping portion 110 retracts along the second clamping portion 210, and the first inclined surface 111 of the first clamping portion 110 no longer abuts against the second inclined surface 212 of the limiting member 211 of the second clamping portion 210. 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 and the second clamping portion 210 are restored to the open state.

[0077] When there is a clamped object, such as a blood vessel 500, between the first clamping portion 110 and the second clamping portion 210, the first clamping portion 110 and the second clamping portion 210 cannot completely abut against each other, but because the first clamping surface of the first clamping portion 110 is deformed from an arch to an anti-arch, the first clamping portion 110 first moves downward in the middle of the first clamping surface, so that the middle of the first clamping portion 110 and the second clamping portion 210 abut against each other, thereby clamping the blood vessel 500;

[0078] When there is no clamped object between the first clamping portion 110 and the second clamping portion 210, the first clamping surface of the first clamping portion 110 completely changes from an arch shape to an inverse arch shape, so that the first clamping portion 110 and the second clamping portion 210 are completely in contact with each other. Figure 7 shown.

[0079] Here, the first clamping portion 110 is in an arch shape before deformation. When the bottom end of the first inclined surface 111 of the first clamping portion 110 abuts against the second clamping portion 210, the spacing between the gaps 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. Figure 8 As shown, the length of the first clamping portion 110 after being deformed into an inverse bow shape needs to be compatible with the length of the second clamping portion 210, so that the first clamping portion 110 and the second clamping portion 210 can fit tightly together, and the first inclined surface 111 of the first clamping portion 110 and the second inclined surface 212 of the limiting member 211 of the second clamping portion 210 abut against each other to form an interlocking structure, thereby firmly clamping the blood vessel 500.

[0080] Furthermore, combined with Figures 9 to 11The first clamping part 110 and the second clamping part 210 have a plurality of first clamping teeth 140 and a plurality of second clamping teeth 240 respectively disposed on the clamping surfaces opposite to each other. The first clamping teeth 140 and the second clamping teeth 240 are arranged alternately at intervals, and the intervals between two adjacent first clamping teeth 140 and the second clamping teeth 240 are sufficient to adapt to the extension deformation of the first clamping part 110 along the second clamping part 210, and when the first clamping part 110 and the second clamping part 210 abut against each other, the first clamping teeth 140 and the second clamping teeth 240 They 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 part 110 is deformed and moves axially on the second clamping part 210, the abutting friction between two adjacent first clamping teeth 140 and the second clamping teeth 240 is small, and at the same time, the abutting tightness of 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.

[0081] Specifically, 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 in 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 firmness of clamping the blood vessel 500.

[0082] 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.

[0083] Specifically, combined Figure 4 , Fig. 9 and Fig.10 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.

[0084] 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.

[0085] Furthermore, the depth of the first spring clip groove 131 and the second spring clip groove 231 is associated with the size of the elastic force that the spring clip 400 can release. 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 force of the spring clip 400, thereby increasing the clamping force between the first clamping portion 110 and the second clamping portion 210.

[0086] Therefore, the depth of the first spring clip groove 131 and the second spring clip groove 231 can be adaptively adjusted according to the clamping force required for the mutual abutment between the first clamping part 110 and the second clamping part 210, so that the relative movement distance of the first elastic arm 420 and the second elastic arm 430 can make the elastic force 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.

[0087] 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.

[0088] 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.12 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.

[0089] Thus, the first clamp 610 is formed, and the second clamp 620 has the same structure as the first clamp 610, so that the first clamp 610 and the second clamp 620 cooperate to clamp the blood vessel 500 at two points, thereby further improving the clamping stability and firmness of the blood vessel 500, so that the blood vessel 500 is not easy to fall off from the clamp 600 or cause bleeding.

[0090] 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.

[0091] Take, for example, when a blood-blocking clamp needs to clamp a blood vessel.

[0092] According to the exposed length of the blood vessel 500, the first clamp 610 and the second clamp 620 are moved axially along the connecting axis 300 to adjust the distance L between the first clamp 610 and the second clamp 620, thereby controlling the distance between the two clamping points of the first clamp 610 and the second clamp 620 respectively clamping the blood vessel 500, so that the first clamp 610 and the second clamp 620 can clamp the blood vessel 500.

[0093] The blood blocking clip is placed on the blood vessel 500, and the first expansion wall 711 and the second expansion wall 721 of the expansion frame 700 can cooperate to expand and stretch the tissue outside the blood vessel 500, thereby expanding the doctor's operating field of view.

[0094] The doctor presses the first operating part 130 and the second operating part 230 on the first clamp body 610 and the second clamp body 620 through the multi-level anti-slip ribs 150, and the first operating part 130 moves vertically downward, and the second operating part 230 moves vertically upward, 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 moves vertically upward, and the second clamping part 210 moves vertically downward, so that the upper clamp 100 and the lower clamp 200 are in an open state, so that the first clamp body 610 and the second clamp body 620 are opened to prepare to clamp the blood vessel 500.

[0095] Place the two clamping points of the blood vessel 500 on the second clamping part 210 of the lower clamp 200 in the first clamp body 610 and the second clamp body 620 respectively, release the first operating part 130 and the second operating part 230, and the first elastic arm 420 and the second elastic arm 430 move relatively in the first spring clip groove 131 and the second spring clip groove 231 respectively, thereby releasing the elastic force of the spring clip 400, and synchronously driving the first operating part 130 to move vertically upward and the second operating part 230 to move vertically downward, so that the first clamping part 110 moves vertically downward and the second clamping part 210 moves vertically upward.

[0096] At this time, the end of the first clamping part 110 first abuts against the limiting piece 211 on the second clamping part 210, and a gap is left in the middle of the first clamping part 110 and the second clamping part 210. Since the first clamping part 110 is restricted by the limiting piece 211, it cannot continue to move axially and vertically under the action of the elastic force, so that the movement of the first clamping part 110 is limited, so that the first clamping part 110 and the second clamping part 210 are interlocked, thereby realizing the first clamp body 610 and the second clamp body 620 to firmly clamp the two clamping points of the blood vessel 500.

[0097] Then, the spring piece 400 continues to release the elastic force. Since the end of the first clamping portion 110 is restricted by the limit piece 211 and cannot move axially and vertically, the elastic force can only act on the middle part of the first clamping portion 110, so that the first clamping portion 110 changes from a bow shape to an inverted bow shape under the action of the elastic force, so that the first clamping portion 110 and the second clamping portion 210 abut against each other, and the upper clamping piece 100 and the lower clamping piece 200 are in a clamped closed state.

[0098] 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.

[0099] 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 mutual abutment force between the first clamping portion 110 and the second clamping portion 210 no longer increases, and the first clamping body 610 and the second clamping body 620 maintain a firm clamping of the two clamping points of the blood vessel 500.

[0100] When the doctor sutures the blood vessel, the doctor overlaps the suture on the first suture hook 713 and the second suture hook 723 at both ends of the expansion frame 700, so that the first suture hook 713 and the second suture hook 723 assist in fixing the suture, making it easier to tie the suture, thereby improving the operation efficiency.

[0101] The disposable double-blood-blocking clamp with frame provided by the present invention adopts a first clamp body 610 and a second clamp body 620 to clamp the blood vessel 500, thereby improving the clamping stability and firmness of the blood vessel. At the same time, the expansion frame 700 outside the first clamp body 610 and the second clamp body 620 can effectively expand and stretch the tissue outside the blood vessel 500, providing a wide operating field for the doctor. At the same time, the suture hook at the end of the expansion frame 700 can effectively assist in the fixation of sutures, thereby improving operating efficiency.

[0102] 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 double-blocking blood clamp with a frame, characterized in that: include The expansion frame is configured to have an expansion wall formed on the outside, suture hooks for cooperating with sutures are provided at both ends of the expansion wall, and an operation area and a connection area are formed inside. At least one clamp body, the clamp body cooperates with the connection area of ​​the expansion frame and is built into the expansion frame, so that the clamping portion of the clamp body cooperates with the operation area of ​​the expansion frame, and the expansion wall of the expansion frame props up the tissue of the operation area to expose the clamped object in the operation area, so that the clamping portion of the clamp body can operate the clamped object in the operation area; The clamp body comprises a first clamp and a second clamp that are arranged in cooperation with each other and an elastic component, the first clamp comprises a first clamping portion and a first operating portion, the second clamp comprises a second clamping portion and a second operating portion, the elastic component is arranged to cooperate with the first operating portion of the first clamp and the second operating portion of the second clamp, and can form an elastic clamping force between the first clamp and the second clamp; The first clamping surface of the first clamping part is arched when not under force, and the outer end of the first clamping part includes a first inclined surface inclined toward the middle of the first clamping part, the second clamping surface of the second clamping part always remains straight, and a limit piece is provided at the end of the second clamping part. When the first clamping portion abuts against the second clamping portion to form a clamping structure based on the elastic clamping force, under the action of the elastic clamping force, the bottom end of the first inclined surface of the first clamping portion first abuts against the second clamping portion, and the middle part of the first clamping surface produces a downward displacement toward the second clamping portion, and produces a deformation with a trend of changing from a bow shape to a reverse bow shape, so that the middle part of the first clamping portion and the second clamping portion abut against each other to present a first form. Under the continuous action of the elastic force, the first clamping portion extends to both sides along the second clamping portion, changing from a bow shape to a reverse bow shape, and stretching and deforming from the first form to the second form. The first clamping portion and the second clamping portion are completely abutted and clamped, and in the second form, the first inclined surface of the first clamping portion abuts against the limiting piece of the second clamping portion to form a self-locking structure; The first operating part and the second operating part are pressed synchronously. When the first clamping part loses the elastic clamping force, it can be restored from the second form to the first form along the second clamping part. The first inclined surface of the first clamping part and the limiting piece of the second clamping part are no longer abutted, and the self-locking structure formed between the first clamping part and the second clamping part is synchronously released.

2. The disposable double-blocking blood clamp with frame according to claim 1, characterized in that: The clamping body comprises a first clamping body and a second clamping body, wherein the first clamping body and the second clamping body are arranged side by side in the expansion frame, and a connecting shaft passes through the first clamping body and the second clamping body to connect the connection area of ​​the expansion frame.

3. The disposable double-blocking blood clamp with frame according to claim 2, characterized in that: The expansion frame is composed of a first frame and a second frame which are connected and matched with each other. The first frame and the second frame are arranged opposite to each other and both include a concave expansion wall.

4. The disposable double-blocking blood clamp with frame according to claim 3, characterized in that: The first frame is extended along two ends of the expansion wall to form a first suturing hook, and the second frame is extended along two ends of the expansion wall to form a second suturing hook.

5. The disposable double-blocking blood clamp with frame according to claim 4, characterized in that: The first frame and the second frame are connected and matched so that the first suturing hook and the second suturing hook cooperate to form a U shape.

6. The disposable double-blocking blood clamp with frame according to claim 5, characterized in that: Positioning pins are arranged at the bottoms of both ends of the first frame, and positioning holes matching with the positioning pins are arranged at both ends of the second frame.

7. The disposable double-blocking blood clamp with frame according to claim 6, characterized in that: An inclined first abutting surface is formed in the bottom surface area where the first frame cooperates with the second frame, and a second abutting surface matched with the first abutting surface is formed in the top surface area where the second frame cooperates with the first frame.

8. The disposable double-blocking blood clamp with frame according to claim 3, characterized in that: The middle bottom surfaces of the first frame and the second frame are both provided with connecting plates, and the connecting plates are provided with connecting holes matched with the connecting shafts.

9. The disposable double-blocking blood clamp with frame according to claim 8, characterized in that: The first clamp body and the second clamp body are capable of axially moving along the connecting axis.

Images