A microvascular clamp assembly that is easy to take and place and a method of using the same

Abstract

The present invention discloses a microvascular clamp assembly that is easy to take and put, including a microvascular clamp and a needle holding forceps for holding the microvascular clamp; the microvascular clamp includes a clamping part for clamping the blood vessel and a control part for controlling the clamping part to open or close; the needle holding forceps includes an opening and closing part, a hand-held part, and a limiting structure; the opening and closing part is controlled by the hand-held part to open, and the opening and closing part controls the holding part to open, so that the microvascular clamp is opened and clamped on the blood vessel under the elastic support of the C-shaped spring sheet. The microvascular clamp assembly that is easy to take and put of the present invention has a simple structure, is easy to take and put, is quick and convenient to use, and does not damage the microvascular clamp during taking and putting, and is not easy to drop.

Description

Technical Field

[0001] The invention relates to a medical surgical instrument, in particular to a microscopic vascular clamp component which is easy to take and place. Background Art

[0002] In surgical operations, it is often necessary to clamp specific blood vessels to stop bleeding or temporarily close the blood vessels. Currently, the microvascular clamps on the market are small in size, convenient and flexible, and are generally 15-18mm in length. Figure 1 As shown, the microvascular clamp includes a clamping part for clamping the blood vessel and a control part for controlling the opening or closing of the clamping part. The control part is arranged in a C-shaped elastic structure. The clamping part is a first clamp and a second clamp. The first clamp and the second clamp are respectively extensions of the two arms of the C-shaped elastic structure. The first clamp and the second clamp are arranged alternately, so that the first clamp, the second clamp and the two arms of the C-shaped elastic structure are in a cross shape. When not in use, under the elastic force of the C-shaped elastic structure, the first clamp and the second clamp are in a closed state; when the blood vessel clamp is used, the C-shaped elastic structure of the blood vessel clamp is clamped from one side by a needle holding forceps, so that the first clamp and the second clamp are opened and clamped on the blood vessel. However, when using a needle holder to clamp the vascular clamp, it is necessary to clamp it from the side of the vascular clamp. The vascular clamp has a certain width. The existing needle holder can only clamp the side edge of the C-shaped elastic structure. After clamping, it is moved to the surgical field. During use, it is particularly easy to fall to the ground or in the surgical field. After falling, a new vascular clamp needs to be clamped for surgery, which seriously affects the progress of the surgery and increases the surgical risk for patients. At the same time, when clamping with a needle holder, it is necessary to control the clamping force of the needle holder. If too much force is used, it is easy to cause the C-shaped elastic structure to deform and the elastic force to weaken. Therefore, medical staff need to be trained before clamping the vascular clamp, otherwise the vascular clamp will not clamp the blood vessel with enough force, which increases the surgical risk and easily causes medical accidents. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a microvascular clamp assembly and a method of using the microvascular clamp, which has a simple structure, is easy to take and place, does not damage the microvascular clamp during taking and placing, and is not easy to drop.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A microvascular clamp assembly that is easy to take and put, comprising a microvascular clamp and a needle holding forceps for holding the microvascular clamp; the microvascular clamp comprises a clamping part for clamping a blood vessel and a control part for controlling the clamping part to open or close; the clamping part comprises a first clamp and a second clamp; the control part comprises a C-shaped spring piece and a holding part that cooperates with the needle holding forceps; the first clamp and the second clamp are respectively extensions of two arms on one side of the opening of the C-shaped spring piece, and the first clamp and the second clamp are staggered to each other so that the two arms are in a cross shape; the holding part is arranged One side of the C-shaped spring piece is raised, including two wings, and the two wings are extensions of the two arms of the C-shaped spring piece toward the side of the C-shaped spring piece. The needle holding forceps include an opening and closing part between the two wings of the holding part for opening and closing the two wings, a hand-held part for manually controlling the opening and closing of the opening and closing part, and a limiting structure arranged on the hand-held part for limiting the opening and closing degree of the opening and closing part. The opening and closing part is controlled by the hand-held part to open, and the opening and closing part controls the opening of the two wings of the holding part, so that the first clamp and the second clamp are opened and clamped on the blood vessel under the elastic support of the C-shaped spring piece.

[0006] Two wings are arranged on one side of the raised C-shaped spring piece of the microvascular clamp, and the opening and closing of the first clamp and the second clamp can be controlled by the two wings; an opening and closing part is arranged on the needle holding forceps, and a structure for holding open the two wings is arranged on the opening and closing part, and the wing of the microvascular clamp can be directly acted on by holding the needle holding forceps, and the two wings open and clamp the first clamp and the second clamp on the blood vessel under the support of the C-shaped spring piece. When the first clamp and the second clamp are clamped on the blood vessel, the first clamp and the second clamp are clamped on the blood vessel under the elastic action of the C-shaped spring piece. When the operation is completed, the two wings of the microvascular clamp are opened by the opening and closing part of the needle holding forceps, and the first clamp and the second clamp are opened from the blood vessel, and the microvascular clamp can be removed. By arranging two wings on the microvascular clamp and arranging an opening and closing part cooperating therewith on the needle holding forceps, it is possible to clamp the two arms of the C-shaped spring piece of the microvascular without the needle holding forceps directly, and the opening and closing part of the present invention directly acts on the wing to prevent the microvascular clamp from falling. By providing a limiting structure for limiting the degree of opening and closing of the opening and closing part on the needle holding forceps, the size of the opening of the first clamp and the second clamp is guaranteed, and deformation of the microvascular clamp due to excessive force is prevented, thereby ensuring the safety of the microvascular clamp and the number of times it can be recycled.

[0007] Preferably, the needle holding forceps include an upper forceps body and a lower forceps body; the hand holding part of the needle holding forceps includes an upper forceps handle and a lower forceps handle, and the opening and closing part of the needle holding forceps includes an upper forceps head and a lower forceps head; the upper forceps handle and the upper forceps head constitute the upper forceps body, and the lower forceps handle and the lower forceps head constitute the lower forceps body; the upper forceps body and the lower forceps body are hinged at the connection between the forceps handle and the forceps head, and the upper forceps body and the lower forceps body are respectively located on both sides of the hinge; the limiting structure is a limiting rod arranged between the upper forceps handle and the lower forceps handle to limit the relative closing distance between the upper forceps handle and the lower forceps handle, and the limiting rod is arranged on the inner side of the upper forceps handle and / or the lower forceps handle; the upper forceps handle and the lower forceps handle are opened to close the upper forceps head and the lower forceps head, and the upper forceps handle and the lower forceps handle are closed to open the upper forceps head and the lower forceps head so that the two wings of the holding part are opened.

[0008] The needle holding forceps is set as a forceps structure, and the upper forceps body and the lower forceps body are set on both sides, and a limit rod is set between the upper forceps body and the lower forceps body. When the upper forceps handle and the lower forceps handle are pinched, the upper forceps head and the lower forceps head are opened, and the opening degree of the upper forceps head and the lower forceps head is limited by the setting of the limit rod. When opened to the maximum extent, the limit rod is pressed between the upper forceps handle and the lower forceps handle. The maximum opening degree of the upper forceps head and the lower forceps head does not affect or has a low impact on the deformation of the C-shaped spring piece through design. Two wings are set on the microvascular clamp. Except for one side of the C-shaped spring piece, the other parts of the two wings are in a separated state. When using the needle holding forceps, the wing can be contacted from other parts except one side of the C-shaped spring piece, which is more flexible and convenient to use.

[0009] Furthermore, a plurality of protrusions are arranged on the outer surfaces of the ends of the upper clamp head and the lower clamp head, and a plurality of protrusions matching the protrusions on the upper clamp head and the lower clamp head are arranged alternately on the inner surfaces of the two wings of the holding portion. By arranging a plurality of protrusions on the inner surfaces of the fins, a concave-convex structure can be formed on the inner surfaces of the fins, and the protrusions on the upper clamp head and the lower clamp head cooperate with the concave-convex structure to ensure that the microvascular clamp will not fall off the needle clamp.

[0010] The present invention relates to a method for using more than one microvascular clip assembly, comprising the following steps:

[0011] S1. Hold the upper and lower handles of the needle holding forceps, so that the upper and lower clamp heads are in a closed state, and place the upper and lower clamp heads of the needle holding forceps between the two fins of the holding part;

[0012] S2. Under the action of the limit rod, the upper clamp handle and the lower clamp handle of the needle holding forceps are pinched together, so that the upper clamp head and the lower clamp head are opened to each other, driving the two wings of the microvascular clamp to open, and under the support of the C-shaped spring sheet, the first clamp and the second clamp are opened;

[0013] S3, holding the needle holder to clamp the first clamp and the second clamp on the blood vessel, and removing the needle holder;

[0014] S4. After using the microvascular clamp, repeat steps S1 and S2 to remove the microvascular clamp from the blood vessel.

[0015] Preferably, the two wings of the holding portion are respectively provided with a hemispherical groove outwardly, and the openings of the two grooves are arranged opposite to each other; the opening and closing portion is a drum spring, and the drum spring includes an annular spring seat arranged at both ends and a plurality of spring leaves arranged between the two spring seats, the two spring seats are coaxially arranged, the two ends of the plurality of spring leaves are respectively fixed on the two spring seats and are evenly arranged between the two spring seats, and the plurality of drum springs bulge outwardly to form a drum shape with the two spring seats; the limiting structure is a self-locking structure, including a self-locking switch and a self-locking member cooperating with the self-locking switch; the hand-held portion includes a gun-shaped support member, a push-pull rod, a pull member and a linkage structure connecting the push-pull rod and the pull member arranged inside the support member; the support member includes a sleeve fixedly connected to the spring seat at one end of the drum spring and a hand-held seat fixedly connected to the sleeve; The spring seat is sleeved on the free end of the sleeve; the push-pull rod is sleeved in the sleeve, and one end of the push-pull rod passes through the two spring seats of the drum spring from the middle of the drum spring and rests on the spring seat outside the drum spring, and the other end is connected with the linkage structure; the pulling piece is hinged on the hand-held seat, one end of which is connected to the end of the push-pull rod on one side of the hand-held seat through the linkage structure, and the other end is the pulling part that is pulled by the finger; the self-locking piece is fixedly arranged on the push-pull rod, and the self-locking switch is fixedly arranged on the hand-held seat; when in use, the drum spring is placed between the two wings, and the pulling piece is pulled to drive the linkage structure, and the linkage structure drives the push-pull rod to move along the sleeve toward the hand-held seat, and the end of the push-pull rod compresses the spring seat of the drum spring, and several spring leaves of the drum spring bulge and form an interference fit with the grooves on the fins, thereby opening the two wings. At the same time, the self-locking switch and the self-locking piece of the self-locking structure cooperate to shape the two wings.

[0016] By setting a hemispherical groove on the wing to cooperate with the drum spring, the drum spring can be conveniently matched with the two grooves in any direction between the two wings. The drum spring is acted on by the pull member, the linkage structure and the push-pull rod, which is convenient for one-handed operation. The microvascular clamp can be taken out and placed by just pulling the pull member. The structure is simple and easy to use. Under the action of the self-locking switch and the self-locking member, the degree of the drum spring is limited, thereby limiting the degree of opening of the two wings of the microvascular clamp, thereby preventing the microvascular clamp from failing due to excessive clamping force. And the drum spring and the groove are interlocked with each other, so that the microvascular clamp is not easy to fall off the needle holder.

[0017] Furthermore, the push-pull rod is provided with an orientation seat at the end of one side of the hand-held seat, and a through hole is provided on the orientation seat for the push-pull rod to pass through; the push-pull rod is limited to move in a straight line by the sleeve and the through hole on the orientation seat. By providing the orientation seat, under the action of the orientation seat and the sleeve, the push-pull rod can move along the axial direction of the sleeve and the through hole of the orientation seat, thereby ensuring that the drum spring is normally inflated.

[0018] Preferably, the linkage structure includes a compression spring sleeved on the push-pull rod, a wire drawing whose two ends are respectively connected to the end of the push-pull rod and the pulling piece, and a roller arranged on the hand-held seat to change the direction of the wire drawing; a limit plate for limiting the compression spring is fixedly arranged on the push-pull rod, and the compression spring is arranged between the limit plate and the directional seat; the wire drawing is wound on the roller, and the push-pull rod and the pulling piece are arranged on the same side of the roller through the wire drawing, and the roller is arranged on one side of the push-pull rod end, and the wire drawing between the push-pull rod end and the roller is arranged parallel to the push-pull rod, the pulling piece pulls the wire drawing, and the wire drawing drives the push-pull rod to move axially along the push-pull rod.

[0019] Preferably, the linkage structure includes a C-shaped spring with elastic deformation, a winding column and a C-shaped groove that limits the C-shaped spring; one end of the C-shaped spring is fixedly connected to the end of the push-pull rod, and the other end is fixedly connected to the pulling piece; the winding column is arranged at the bending part of the C-shaped spring, and the winding column is arranged on one side of the end of the push-pull rod, and the C-shaped groove has a bell mouth on the side where the C-shaped spring is connected to the pulling piece to accommodate the elastic deformation of the C-shaped spring, and the push-pull rod and the pulling piece are arranged on the same side of the winding column through the C-shaped spring; the pulling piece is pulled, and the pulling piece drives the C-shaped spring to move on the winding column in the C-shaped groove and pull the push-pull rod, so that the reed leaf of the drum spring bulges, and the self-locking structure locks the push-pull rod, and the pulling piece is pulled again, the self-locking structure opens, and the C-shaped spring restores its original deformation in the C-shaped groove under the action of its elastic deformation, and at the same time, under the action of the drum spring, the push-pull rod is released.

[0020] The above two linkage structures can make the entire drum spring inflate or return to its original state more smoothly by arranging a compression spring and a C-shaped spring respectively; when the drum spring inflates, the push-pull rod is pulled by the pull member under the action of the compression spring, and is also affected by the rebound force of the compression spring and the drum spring, so that the drum spring can be inflated slowly and smoothly; similarly, the C-shaped spring also has a rebound force during the deformation process.

[0021] The present invention also relates to a method for using a microvascular clamp assembly that is easy to take and put, wherein the microvascular clamp adopts a structure in which a fin has a groove, and the needle holding forceps adopts a structure in which the opening and closing part is a drum spring; the method comprises the following steps:

[0022] St1, holding the holding seat of the support member, place the drum spring between the grooves of the two fins;

[0023] St2, pull the pull member, the pull member drives the linkage structure, the linkage structure pulls the push-pull rod, the push-pull rod pulls the spring seat at one end of the drum spring, so that the several spring leaves of the drum spring are bulged in the two grooves, thereby driving the two wings of the microvascular clamp to open, and under the support of the C-shaped spring, the first clamp and the second clamp are opened, and the push-pull rod is locked with the cooperation of the self-locking switch and the self-locking member;

[0024] St3, hold the first clamp and the second clamp on the blood vessel by holding the hand-held seat, pull the pull piece again, the self-locking switch is turned on, and under the action of the linkage structure and the drum spring reed, the pull piece is released, the drum spring returns to its original state, and the needle holder is taken out;

[0025] St4. After using the microvascular clamp, repeat steps S1 and S2 to remove the microvascular clamp from the blood vessel.

[0026] The microvascular clamp assembly that is easy to take and place of the present invention has a simple structure, is easy to take and place, is quick and convenient to use, and does not damage or drop the microvascular clamp during taking and placing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The contents expressed in the drawings of the specification and the symbols in the drawings are briefly explained:

[0028] Figure 1 It is a schematic diagram of the structure of a microvascular clamp in the prior art;

[0029] Figure 2 is a stereoscopic diagram of the microvascular clamp of Example 1;

[0030] Figure 3 This is a schematic diagram of the structure of the microvascular clamp of Example 1;

[0031] Figure 4 This is a structural schematic diagram of the needle holding forceps of Example 1;

[0032] Figure 5 This is a diagram showing the use status of the microvascular clamp assembly of Example 1;

[0033] Figure 6 It is a schematic diagram of the structure of the microvascular clamp of Example 2 and Example 3;

[0034] Figure 7 It is a schematic diagram of the structure of the drum spring of the second embodiment and the third embodiment;

[0035] Figure 8 This is a structural schematic diagram of the needle holding forceps of Example 2;

[0036] Fig. 9 This is a schematic diagram of the structure of the needle holding forceps of Example 3;

[0037] Fig.10 It is a process diagram of the drum spring inflating in the second embodiment and the third embodiment;

[0038] In the figure: 1 is the first clamp; 2 is the second clamp; 3 is the spring; 4 is the wing; 5 is the upper clamp handle; 6 is the lower clamp handle; 7 is the upper clamp head; 8 is the lower clamp head; 9 is the limit rod; 10 is the protrusion; 11 is the convexity; 12 is the groove; 13 is the spring; 14 is the spring seat; 15 is the self-locking switch; 16 is the self-locking member; 17 is the push-pull rod; 18 is the pull member; 19 is the sleeve; 20 is the hand-held seat; 21 is the directional seat; 22 is the compression spring; 23 is the drawing; 24 is the roller; 25 is the limit plate; 26 is the C-shaped spring; 27 is the winding column; 28 is the C-shaped groove; 29 is the blood vessel. DETAILED DESCRIPTION

[0039] The present invention is further described below with reference to a non-limiting embodiment of the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.

[0040] Embodiment 1

[0041] like Figure 2 , 3 As shown in , 4 and 5, a microvascular clamp assembly that is easy to take and put includes a microvascular clamp and a needle holding forceps for holding the microvascular clamp; the microvascular clamp includes a clamping part for clamping a blood vessel 29 and a control part for controlling the clamping part to open or close; the clamping part includes a first clamp 1 and a second clamp 2; the control part includes a C-shaped spring piece 3 and a holding part that cooperates with the needle holding forceps; the first clamp 1 and the second clamp 2 are respectively extensions of two arms on one side of the opening of the C-shaped spring piece 3, and the first clamp 1 and the second clamp 2 are staggered to each other so that the two arms are in a cross shape; the holding part is arranged The raised side of the C-shaped spring piece 3 includes two fins 4, and the two fins 4 are extensions of the two arms of the C-shaped spring piece 3 toward the raised side of the C-shaped spring piece 3; the needle holding forceps include an opening and closing part between the two wings 4 of the holding part for opening and closing the two wings 4, a hand-held part for manually controlling the opening and closing of the opening and closing part, and a limiting structure arranged on the hand-held part for limiting the opening and closing degree of the opening and closing part; the opening and closing part is controlled by the hand-held part to open, and the opening and closing part controls the opening of the two wings 4 of the holding part, so that the first clamp 1 and the second clamp 2 are opened and clamped on the blood vessel 29 under the elastic support of the C-shaped spring piece 3.

[0042] like Figure 4 , 5As shown, the needle holding forceps include an upper forceps body and a lower forceps body; the hand holding part of the needle holding forceps includes an upper forceps handle 5 and a lower forceps handle 6, and the opening and closing part of the needle holding forceps includes an upper forceps head 7 and a lower forceps head 8; the upper forceps handle 5 and the upper forceps head 7 constitute the upper forceps body, and the lower forceps handle 6 and the lower forceps head 8 constitute the lower forceps body; the upper forceps body and the lower forceps body are hinged at the connection between the forceps handle and the forceps head, and the upper forceps body and the lower forceps body are respectively located on both sides of the hinge; the limiting structure is a limiting rod 9 arranged between the upper forceps handle 5 and the lower forceps handle 6 to limit the relative closing distance between the upper forceps handle 5 and the lower forceps handle 6, and the limiting rod 9 is arranged on the inner side of the upper forceps handle 5 and / or the lower forceps handle 6; the upper forceps handle 5 and the lower forceps handle 6 are opened to close the upper forceps head 7 and the lower forceps head 8, and the upper forceps handle 5 and the lower forceps handle 6 are closed to open the upper forceps head 7 and the lower forceps head 8, so that the two wings 4 of the holding part are opened. A plurality of protrusions 10 are arranged on the outer surfaces of the ends of the upper clamp head 7 and the lower clamp head 8, and a plurality of protrusions 11 matching with the protrusions 10 on the upper clamp head 7 and the lower clamp head 8 are arranged alternately on the inner surfaces of the two fins 4 of the holding portion.

[0043] like Figure 5 As shown, the method for using the microvascular clip assembly of this embodiment includes the following steps:

[0044] 1) Hold the upper clamp handle 5 and the lower clamp handle 6 of the needle holding forceps, so that the upper clamp head 7 and the lower clamp head 8 are in a closed state, and place the upper clamp head 7 and the lower clamp head 8 of the needle holding forceps between the two fins 4 of the holding part;

[0045] 2) Under the action of the limit rod 9, the upper clamp handle 5 and the lower clamp handle 6 of the needle holding forceps are pinched together, so that the upper clamp head 7 and the lower clamp head 8 are opened to each other, driving the two wings 4 of the microvascular clamp to open, and under the support of the C-shaped spring 3, the first clamp 1 and the second clamp 2 are opened;

[0046] 3) Hold the needle holder by hand to clamp the first clamp 1 and the second clamp 2 on the blood vessel 29, and remove the needle holder;

[0047] 4) After the microvascular clamp is used, repeat steps 1 and 2 to remove the microvascular clamp from the blood vessel 29.

[0048] Embodiment 2

[0049] like Figure 6 , 7 As shown in , 8, a microvascular clamp assembly that is easy to take and put, including a microvascular clamp and a needle holding forceps for holding the microvascular clamp; Figure 6As shown, the microvascular clamp includes a clamping portion for clamping a blood vessel 29 and a control portion for controlling the clamping portion to open or close; the clamping portion includes a first clamp 1 and a second clamp 2; the control portion includes a C-shaped spring piece 3 and a holding portion that cooperates with the needle holding forceps; the first clamp 1 and the second clamp 2 are respectively extensions of two arms on one side of the opening of the C-shaped spring piece 3, and the first clamp 1 and the second clamp 2 are staggered to each other so that the two arms are in a cross shape; the holding portion is arranged on one side of the protrusion of the C-shaped spring piece 3, and includes two wings 4, and the two wings 4 are extensions of the two arms of the C-shaped spring piece 3 toward the protrusion of the C-shaped spring piece 3; the needle holding forceps includes an opening and closing portion between the two wings 4 of the holding portion for opening and closing the two wings 4, a handheld portion for manually controlling the opening and closing of the opening and closing portion, and a limit structure arranged on the handheld portion for limiting the opening and closing degree of the opening and closing portion; hemispherical grooves 12 are respectively arranged outwardly on the two wings 4 of the holding portion, and the openings of the two grooves 12 are arranged opposite to each other;

[0050] like Figure 7 As shown, the opening and closing part is a drum spring, which includes an annular spring seat 14 arranged at both ends and a plurality of spring leaves 13 arranged between the two spring seats 14. The two spring seats 14 are coaxially arranged, and the two ends of the plurality of spring leaves 13 are respectively fixed on the two spring seats 14 and are evenly arranged between the two spring seats 14. The plurality of drum springs bulge outwards to form a drum shape with the two spring seats 14.

[0051] like Figure 8 As shown, the limit structure is a self-locking structure, including a self-locking switch 15 and a self-locking member 16 matched with the self-locking switch 15; the hand-held part includes a gun-shaped support member, a push-pull rod 17, a pull member 18 and a linkage structure connecting the push-pull rod 17 and the pull member 18 arranged inside the support member; the support member includes a sleeve 19 fixedly connected to the spring seat 14 at one end of the drum spring and a hand-held seat 20 fixedly connected to the sleeve 19; the spring seat 14 at one end of the drum spring is sleeved on the free end of the sleeve 19; the push-pull rod 17 is sleeved in the sleeve 19, and one end of the push-pull rod 17 passes through the two spring seats 14 of the drum spring from the middle of the drum spring and abuts against the spring seat 14 outside the drum spring, and the other end is connected to the linkage structure; the pull member 18 is hinged on the hand On the holder 20, one end is connected to the end of the push-pull rod 17 on one side of the holder 20 through a linkage structure, and the other end is a pull part that is pulled by fingers; the self-locking member 16 is fixedly arranged on the push-pull rod 17, and the self-locking switch 15 is fixedly arranged on the holder 20; when in use, the drum spring is placed between the two wings 4, and the pull member 18 is pulled to drive the linkage structure, and the linkage structure drives the push-pull rod 17 to move along the sleeve 19 toward the holder 20. The end of the push-pull rod 17 compresses the spring seat 14 of the drum spring, and the several spring leaves 13 of the drum spring swell and form an interference fit with the groove 12 on the wing 4, so that the two wings 4 are opened, and at the same time, the self-locking switch 15 and the self-locking member 16 of the self-locking structure cooperate to shape the two wings 4. Figure 8As shown, the push-pull rod 17 is provided with an orientation seat 21 at the end of one side of the hand-held seat 20, and the orientation seat 21 is provided with a through hole through which the push-pull rod 17 passes; the push-pull rod 17 is limited to move in a straight line by the sleeve 19 and the through hole on the orientation seat 21.

[0052] like Figure 8 As shown, the linkage structure includes a compression spring 22 sleeved on the push-pull rod 17, a wire drawing 23 whose two ends are respectively connected to the end of the push-pull rod 17 and the pull member 18, and a roller 24 arranged on the hand-held seat 20 to change the direction of the wire drawing 23; a limit plate 25 for limiting the compression spring 22 is fixedly arranged on the push-pull rod 17, and the compression spring 22 is arranged between the limit plate 25 and the directional seat 21; the wire drawing 23 is wound on the roller 24, and the push-pull rod 17 and the pull member 18 are arranged on the same side of the roller 24 through the wire drawing 23, and the roller 24 is arranged on one side of the end of the push-pull rod 17, and the wire drawing 23 between the end of the push-pull rod 17 and the roller 24 is arranged parallel to the push-pull rod 17, and the pull member 18 pulls the wire drawing 23, and the wire drawing 23 drives the push-pull rod 17 to move axially along the push-pull rod 17.

[0053] The method for using the microvascular clip assembly of this embodiment includes the following steps:

[0054] 1) Hold the holding seat 20 of the holding support member and place the drum spring between the grooves 12 of the two fins 4;

[0055] 2) Pull the pull member 18, the pull member 18 drives the linkage structure, the wire drawing 23 of the linkage structure pulls the push-pull rod 17 around the roller 24, the push-pull rod 17 pulls the limit plate 25 to compress the compression spring 22 and pulls the spring seat 14 at one end of the drum spring, so that the several spring leaves 13 of the drum spring are bulged in the two grooves 12, thereby driving the two wings 4 of the microvascular clamp to open, and under the support of the C-shaped spring 3, the first clamp 1 and the second clamp 2 are opened, and the push-pull rod 17 is locked with the cooperation of the self-locking switch 15 and the self-locking member 16;

[0056] 3) Hold the hand-held seat 20 to clamp the first clamp 1 and the second clamp 2 on the blood vessel 29, pull the pull member 18 again, the self-locking switch 15 is turned on, and under the action of the compression spring 22 of the linkage structure and the drum spring reed 13, the pull member 18 is released, the drum spring returns to its original state, and the needle holder is taken out;

[0057] 4) After the microvascular clamp is used, repeat steps 1 and 2 to remove the microvascular clamp from the blood vessel 29.

[0058] Embodiment 3

[0059] The difference between this embodiment and the second embodiment lies in the difference in linkage structure:

[0060] like Fig. 9As shown, the linkage structure includes a C-shaped spring 26 with elastic deformation, a winding column 27 and a C-shaped groove 28 that limits the C-shaped spring 26; one end of the C-shaped spring 26 is fixedly connected to the end of the push-pull rod 17, and the other end is fixedly connected to the pull member 18; the winding column 27 is arranged at the bending part of the C-shaped spring 26, and the winding column 27 is arranged on one side of the end of the push-pull rod 17. The C-shaped groove 28 has a flared mouth on the side where the C-shaped spring 26 is connected to the pull member 18 to adapt to the elastic deformation of the C-shaped spring 26. The push-pull rod 17 and the pull member 18 are connected. The movable member 18 is arranged on the same side of the winding column 27 through the C-shaped spring 26; when the movable member 18 is pulled, the movable member 18 drives the C-shaped spring 26 to move on the winding column 27 in the C-shaped groove 28 and pull the push-pull rod 17, so that the spring leaf 13 of the drum spring swells, and the self-locking structure locks the push-pull rod 17. When the movable member 18 is pulled again, the self-locking structure is opened, and the C-shaped spring 26 restores its original deformation in the C-shaped groove 28 under the action of its elastic deformation, and at the same time, under the action of the drum spring, the push-pull rod 17 is released.

[0061] The method for using the microvascular clip assembly of this embodiment includes the following steps:

[0062] 1) Hold the holding seat 20 of the holding support member and place the drum spring between the grooves 12 of the two fins 4;

[0063] 2) Pull the pull member 18, the pull member 18 drives the C-shaped spring 26 of the linkage structure, the C-shaped spring 26 winds around the column 27 to pull the push-pull rod 17, the C-shaped spring 26 is deformed, and the push-pull rod 17 pulls the spring seat 14 at one end of the drum spring, so that the several spring leaves 13 of the drum spring are bulged in the two grooves 12 due to interference, thereby driving the two wings 4 of the microvascular clamp to open, and under the support of the C-shaped spring leaf 3, the first clamp 1 and the second clamp 2 are opened, and with the cooperation of the self-locking switch 15 and the self-locking member 16, the push-pull rod 17 is locked; in the process of pulling the pull member 18, a trumpet mouth is opened on the hand-held seat 20 at one end of the C-shaped spring 26 connected to the pull member 18, so that the C-shaped spring 26 is always in the C-shaped groove 28 during deformation, and it is more stable to use.

[0064] 3) Hold the hand-held seat 20 to clamp the first clamp 1 and the second clamp 2 on the blood vessel 29, pull the pull member 18 again, the self-locking switch 15 is turned on, and under the action of the C-shaped spring 26 returning to its original state and the drum spring reed 13, release the pull member 18, the drum spring returns to its original state, and the needle holder is taken out;

[0065] 4) After the microvascular clamp is used, repeat steps 1 and 2 to remove the microvascular clamp from the blood vessel 29.

[0066] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, if the terms "first", "second", etc. appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A microvascular clip assembly that is easy to take and put, characterized in that: It includes a microvascular clamp and a needle holding forceps for holding the microvascular clamp; The microvascular clamp comprises a clamping portion for clamping a blood vessel (29) and a control portion for controlling the opening or closing of the clamping portion; the clamping portion comprises a first clamp (1) and a second clamp (2); the control portion comprises a C-shaped spring (3) and a holding portion cooperating with the needle holding clamp; the first clamp (1) and the second clamp (2) are respectively extensions of two arms on one side of the opening of the C-shaped spring (3), and the first clamp (1) and the second clamp (2) are arranged alternately so that the two arms are in a cross shape; the holding portion is arranged on one side of the protrusion of the C-shaped spring (3), and comprises two fins (4), and the two fins (4) are extensions of the two arms of the C-shaped spring (3) toward the protrusion of the C-shaped spring (3); The needle holding forceps comprises an opening and closing portion between the two wings (4) of the holding portion for opening and closing the two wings (4), a hand-held portion for manually controlling the opening and closing of the opening and closing portion, and a limit structure arranged on the hand-held portion for limiting the degree of opening and closing of the opening and closing portion; the opening and closing portion is controlled by the hand-held portion to open, and the opening and closing portion controls the opening of the two wings (4) of the holding portion, so that the first clamp (1) and the second clamp (2) are opened and clamped on the blood vessel (29) under the elastic support of the C-shaped spring sheet (3); The needle holding forceps comprises an upper forceps body and a lower forceps body; the hand holding part of the needle holding forceps comprises an upper forceps handle (5) and a lower forceps handle (6), and the opening and closing part of the needle holding forceps comprises an upper forceps head (7) and a lower forceps head (8); the upper forceps handle (5) and the upper forceps head (7) constitute the upper forceps body, and the lower forceps handle (6) and the lower forceps head (8) constitute the lower forceps body; the upper forceps body and the lower forceps body are hinged at the connection between the forceps handle and the forceps head, and the upper forceps body and the lower forceps body are respectively located on both sides of the hinge; the limiting structure is A limit rod (9) is arranged between the upper clamp handle (5) and the lower clamp handle (6) to limit the relative closing distance between the upper clamp handle (5) and the lower clamp handle (6), and the limit rod (9) is arranged on the inner side of the upper clamp handle (5) and / or the lower clamp handle (6); the upper clamp handle (5) and the lower clamp handle (6) are opened so that the upper clamp head (7) and the lower clamp head (8) are closed, and the upper clamp handle (5) and the lower clamp handle (6) are closed so that the upper clamp head (7) and the lower clamp head (8) are opened so that the two wings (4) of the holding portion are opened; A plurality of protrusions (10) are arranged on the outer surfaces of the ends of the upper clamp head (7) and the lower clamp head (8), and a plurality of protrusions (11) matching with the protrusions (10) on the upper clamp head (7) and the lower clamp head (8) are arranged alternately on the inner surfaces of the two fins (4) of the holding portion.

2. A microvascular clip assembly that is easy to take and put, characterized in that: It includes a microvascular clamp and a needle holding forceps for holding the microvascular clamp; The microvascular clamp comprises a clamping portion for clamping a blood vessel (29) and a control portion for controlling the opening or closing of the clamping portion; the clamping portion comprises a first clamp (1) and a second clamp (2); the control portion comprises a C-shaped spring (3) and a holding portion cooperating with the needle holding clamp; the first clamp (1) and the second clamp (2) are respectively extensions of two arms on one side of the opening of the C-shaped spring (3), and the first clamp (1) and the second clamp (2) are arranged alternately so that the two arms are in a cross shape; the holding portion is arranged on one side of the protrusion of the C-shaped spring (3), and comprises two fins (4), and the two fins (4) are extensions of the two arms of the C-shaped spring (3) toward the protrusion of the C-shaped spring (3); The needle holding forceps comprises an opening and closing portion between the two wings (4) of the holding portion for opening and closing the two wings (4), a hand-held portion for manually controlling the opening and closing of the opening and closing portion, and a limit structure arranged on the hand-held portion for limiting the degree of opening and closing of the opening and closing portion; the opening and closing portion is controlled by the hand-held portion to open, and the opening and closing portion controls the opening of the two wings (4) of the holding portion, so that the first clamp (1) and the second clamp (2) are opened and clamped on the blood vessel (29) under the elastic support of the C-shaped spring sheet (3); The two fins (4) of the holding portion are respectively provided with hemispherical grooves (12) facing outwards, and the openings of the two grooves (12) are arranged opposite to each other; The opening and closing portion is a drum spring, the drum spring comprising an annular spring seat (14) arranged at both ends and a plurality of spring leaves (13) arranged between the two spring seats (14), the two spring seats (14) being coaxially arranged, the two ends of the plurality of spring leaves (13) being respectively fixed on the two spring seats (14) and being evenly arranged between the two spring seats (14), and the plurality of spring leaves (13) all bulge outwards to form a drum shape with the two spring seats (14); The limit structure is a self-locking structure, comprising a self-locking switch (15) and a self-locking member (16) cooperating with the self-locking switch (15); The hand-held part comprises a gun-shaped support member, a push-pull rod (17) and a pull member (18) arranged inside the support member, and a linkage structure connecting the push-pull rod (17) and the pull member (18); the support member comprises a sleeve (19) fixedly connected to a spring seat (14) at one end of a drum spring, and a hand-held seat (20) fixedly connected to the sleeve (19); the spring seat (14) at one end of the drum spring is sleeved on the free end of the sleeve (19); the push-pull rod (17) is sleeved in the sleeve (19), and one end of the push-pull rod (17) passes through two spring seats (14) of the drum spring from the middle of the drum spring and abuts against the spring seat (14) outside the drum spring, and the other end of the push-pull rod (17) is connected to the linkage structure; the pull member (18) is hinged on the hand-held seat (20), and one end of the push-pull rod (17) is connected to the push-pull rod (17) through the linkage structure. 17) is connected to the end of one side of the hand-held seat (20), and the other end is a pull part that is pulled by a finger; the self-locking member (16) is fixedly arranged on the push-pull rod (17), and the self-locking switch (15) is fixedly arranged on the hand-held seat (20); when in use, the drum spring is placed between the two wings (4), the pull member (18) is pulled to drive the linkage structure, and the linkage structure drives the push-pull rod (17) to move along the sleeve (19) toward the hand-held seat (20), the end of the push-pull rod (17) compresses the spring seat (14) of the drum spring, and the plurality of spring leaves (13) of the drum spring swell and form an interference fit with the grooves (12) on the wings (4), so that the two wings (4) are opened, and at the same time, the self-locking switch (15) and the self-locking member (16) of the self-locking structure cooperate to shape the two wings (4); The push-pull rod (17) is provided with an orientation seat (21) at the end portion on one side of the hand-held seat (20), and a through hole through which the push-pull rod (17) passes is provided on the orientation seat (21); the push-pull rod (17) is limited to move in a straight line by the sleeve (19) and the through hole on the orientation seat (21).

3. The microvascular clamp assembly that is easy to take and put as claimed in claim 2, wherein the linkage structure includes a compression spring (22) sleeved on the push-pull rod (17), a wire drawing (23) whose two ends are respectively connected to the end of the push-pull rod (17) and the trigger (18), and a roller (24) arranged on the hand-held seat (20) to change the direction of the wire drawing (23); a limit plate (25) that limits the compression spring (22) is fixedly arranged on the push-pull rod (17), and the compression spring (22) is arranged between the limit plate (25) and the directional The wire drawing (23) is wound around the roller (24), the push-pull rod (17) and the pull member (18) are arranged on the same side of the roller (24) through the wire drawing (23), the roller (24) is arranged on one side of the end of the push-pull rod (17), the wire drawing (23) between the end of the push-pull rod (17) and the roller (24) is arranged parallel to the push-pull rod (17), the pull member (18) pulls the wire drawing (23), and the wire drawing (23) drives the push-pull rod (17) to move axially along the push-pull rod (17).

4. The easy-to-remove microvascular clip assembly according to claim 2, characterized in that: The linkage structure comprises a C-shaped spring (26) with elastic deformation, a winding column (27) and a C-shaped groove (28) defining the C-shaped spring (26); one end of the C-shaped spring (26) is fixedly connected to the end of the push-pull rod (17), and the other end is fixedly connected to the pull member (18); the winding column (27) is arranged at the bending part of the C-shaped spring (26), the winding column (27) is arranged on one side of the end of the push-pull rod (17), the C-shaped groove (28) has a flared mouth on the side where the C-shaped spring (26) is connected to the pull member (18) to adapt to the elastic deformation of the C-shaped spring (26), and the push-pull rod (17) and the trigger member (18) are arranged on the same side of the winding column (27) through the C-shaped spring (26); when the trigger member (18) is pulled, the trigger member (18) drives the C-shaped spring (26) to move in the C-shaped groove (28) against the winding column (27) and pulls the push-pull rod (17), so that the spring leaf (13) of the drum spring bulges, and the self-locking structure locks the push-pull rod (17); when the trigger member (18) is pulled again, the self-locking structure is opened, and the C-shaped spring (26) returns to its original deformation in the C-shaped groove (28) under the action of its elastic deformation, and at the same time, under the action of the drum spring, the push-pull rod (17) is released.

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