Disposable penetrating hemostatic clip

Abstract

This invention provides a disposable penetrating hemostatic clip, comprising: a handle; an operating component mounted on the handle; a support tube disposed inside the handle; a sleeve component located in front of the support tube, the sleeve component having a limiting step portion inside; a guide plate body at the front end of the sleeve component, the front end face of the guide plate body having an upper guide through hole and a lower guide through hole; a driving assembly, sequentially inserted into the support tube and the sleeve component, the driving assembly including a steel wire rope, a connecting tube, and a notched pull rod; a connecting shaft sleeved outside the connecting tube; an upper elastic clip and a lower elastic clip disposed opposite to each other, the front end of the upper elastic clip having a puncture tooth made of a biodegradable material; and a connecting pin sequentially passing through the clip body connecting hole of the upper elastic clip and the clip body connecting hole of the lower elastic clip. The disposable penetrating hemostatic clip of this invention has puncture teeth, which puncture the mucosal tissue when the disposable penetrating hemostatic clip completes the clamping of mucosal tissue, thereby ensuring that the mucosal tissue does not detach.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a disposable penetrating hemostatic clip. Background Technology

[0002] Currently, endoscopic tumor resection surgery mainly uses submucosal resection techniques. After tumor resection, wound closure is mainly achieved using hemostatic clips. Ordinary hemostatic clips close the wound without penetrating the mucosa. In other words, ordinary hemostatic clips use a non-penetrating "dumpling-like" closure technique. Because the wound is relatively wide, this type of hemostatic clip can easily cause the mucosal tissue to slough off after surgery, thus reopening the wound. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a disposable penetrating hemostatic clip to solve the above-mentioned problems in the prior art.

[0004] To achieve the above and other related objectives, the present invention provides a disposable penetrating hemostatic clip, comprising:

[0005] handle;

[0006] An operating element is mounted on the handle and can move along the front-back direction of the handle;

[0007] A support tube, the rear end of which is disposed inside the handle;

[0008] A sleeve is located in front of the support tube, and a limiting step is provided inside the sleeve; a guide plate is provided at the front end of the sleeve, and an upper guide through hole and a lower guide through hole are provided on the front end surface of the guide plate.

[0009] A drive assembly is sequentially inserted into the support tube and the sleeve. The drive assembly includes a wire rope, a connecting tube, and a notched pull rod. The wire rope passes through the support tube, with its rear end connected to the operating component and its front end connected to the notched pull rod via the connecting tube. A connecting piece is provided on the wire rope, positioned behind the connecting tube. The notched pull rod includes a pull rod body and a pull head connected to the front end of the pull rod body. The pull head has a receiving through hole arranged vertically, and a notch at its front end communicates with the receiving through hole. A positioning piece is provided at the front end of the connecting tube, positioned behind the pull head. The cross-sectional dimension of the positioning piece is larger than that of the connecting tube.

[0010] A connecting shaft is sleeved outside the connecting tube, and a support tube is sleeved outside the connecting shaft; the connecting shaft can move along the axial direction of the connecting tube and within the support tube; the connecting shaft can move along the axial direction of the connecting tube and within the sleeve.

[0011] The upper and lower elastic clips are arranged opposite each other. The front end of the upper elastic clip is provided with piercing teeth, which are made of biodegradable material. The upper and lower elastic clips have the same structure. The upper elastic clip includes an inwardly recessed arc-shaped piece and a support piece connected to the front end of the arc-shaped piece. The rear part of the arc-shaped piece is provided with a piece connection hole. The arc-shaped piece of the upper elastic clip is inserted into the upper guide through hole, and the arc-shaped piece of the lower elastic clip is inserted into the lower guide through hole.

[0012] A connecting pin passes sequentially through the plate-connecting holes of the upper elastic clip and the lower elastic clip, connecting the upper elastic clip and the lower elastic clip in series; the receiving through hole of the notched pull rod is fitted onto the connecting pin, and the notched pull rod is located between the upper elastic clip and the lower elastic clip;

[0013] When the disposable penetrating hemostatic clip is in its initial state, the connecting shaft passes through the connecting tube and the sleeve in sequence, the connecting tube and the sleeve are in contact, the upper elastic clip and the lower elastic clip are closed, and the two arc-shaped pieces are inside the sleeve; when the notched pull rod moves backward and the limiting step blocks the connecting pin, the notched pull rod continues to move backward, the notch of the notched pull rod becomes wider after elastic deformation, and the notched pull rod separates from the connecting pin.

[0014] Preferably, the sleeve has a first notch and a second notch arranged opposite to each other, both the first notch and the second notch being located behind the limiting step; along the front-rear direction of the pull head, the cross-sectional size of the pull head decreases sequentially; when the notch pull rod separates from the connecting pin, the notch pull rod continues to move backward, the rear end of the upper elastic clip extends into the first notch, and the rear end of the lower elastic clip extends into the second notch.

[0015] Furthermore, hooks are provided on the rear end of the arc-shaped body of the upper elastic clip and the rear end of the arc-shaped body of the lower elastic clip, and each hook is bent outward; when the notch pull rod is separated from the connecting pin, the notch pull rod continues to move backward, the hook of the upper elastic clip hooks the first notch groove, and the hook of the lower elastic clip hooks the second notch groove.

[0016] Preferably, the inner wall of the sleeve has two oppositely arranged receiving portions, and the inner side of each receiving portion is a receiving slope. When the upper elastic clip and the lower elastic clip are closed, the receiving slopes of the two receiving portions respectively support the arc-shaped piece of the upper elastic clip and the arc-shaped piece of the lower elastic clip.

[0017] Preferably, the sleeve includes a sleeve body, a limiting step portion, and a sleeve connecting portion connected sequentially from front to back; along the front-rear direction of the sleeve, the cross-sectional dimensions of the limiting step portion decrease sequentially, the inner diameter of the sleeve body is equal to the inner diameter of the front end of the limiting step portion, and the inner diameter of the sleeve connecting portion is equal to the inner diameter of the rear end of the limiting step portion.

[0018] Preferably, the piercing tooth includes a tooth support member and at least three tooth bodies. The tooth support member includes a first support plate, a transition connecting plate, and a second support plate connected in sequence. The first support plate, the transition connecting plate, and the second support plate are all connected to the front end of the upper elastic clip. The tooth bodies are provided on the first support plate, the transition connecting plate, and the second support plate.

[0019] Furthermore, each of the tooth bodies has a chamfer at the end furthest from the tooth support.

[0020] Preferably, the front end of the handle is provided with a handle head, the outer peripheral surface of the handle head is provided with a head protrusion, and the inner side of a conical cap is provided with a receiving groove. The handle head is inserted into the conical cap, and the head protrusion is inserted into the receiving groove.

[0021] Preferably, the support tube is a spring tube.

[0022] Preferably, the operating element is a slip ring.

[0023] As described above, the disposable penetrating hemostatic clip of the present invention has the following beneficial effects:

[0024] In the initial state, the disposable penetrating hemostatic clip of the present invention has the connecting shaft passing sequentially through the connecting tube and the sleeve, with the connecting tube and the sleeve in contact, the upper elastic clip and the lower elastic clip closing together, and the two arc-shaped pieces inside the sleeve. When the disposable penetrating hemostatic clip is used, the operator pulls the operating component, causing the operating component to drive the wire rope forward towards the handle. The wire rope drives the notched pull rod forward through the connecting tube, and the pull head of the notched pull rod pushes the connecting pin. The connecting pin drives the upper elastic clip and the lower elastic clip forward, and the upper elastic clip and the lower elastic clip... As the sleeve slides out, the upper and lower elastic clips gradually open; and the wire rope drives the connecting piece forward, which in turn pushes the connecting shaft forward; when the disposable penetrating hemostatic clip is placed in the correct position and orientation, the operator pulls the operating component, causing the operating component to drive the wire rope to move backward towards the handle. The wire rope, through the connecting pipe, drives the notch pull rod backward, which in turn pulls the connecting pin backward. The connecting pin drives the upper and lower elastic clips backward, causing them to slide into the sleeve. During the process, the gap between the upper and lower elastic clips decreases, and the piercing teeth of the upper elastic clip gradually penetrate the tissue mucosa. The connecting pin slides towards the rear end of the sleeve until it encounters the limiting step, at which point it stops moving. At this point, the upper and lower elastic clips completely clamp the tissue. After the upper and lower elastic clips have completely clamped the tissue, the operator continues to pull the slip ring backward. Because the connecting pin cannot continue moving after encountering the limiting step, the wire rope applies force to the notch pull rod. Since the pull head of the notch pull rod has a notch, under the force, the notch undergoes elastic deformation, further... As the notch width increases, when it is greater than or equal to the diameter of the connecting pin, the notch pull rod disengages from the connecting pin and continues to move backward. During the backward movement of the connecting tube, the positioning plate on the connecting tube drives the connecting shaft to move backward. After the front end of the connecting shaft and the front end of the pull head enter the support tube, the support tube and the sleeve separate, and the support tube and the drive assembly can be pulled out. The sleeve, the upper elastic clip, and the lower elastic clip remain at the bleeding site to clamp and stop the bleeding. After the puncture tooth degrades and is absorbed by the body, the sleeve, the upper elastic clip, and the lower elastic clip naturally fall off and are expelled from the body.

[0025] The disposable penetrating hemostatic clip of the present invention is provided with puncture teeth. While the disposable penetrating hemostatic clip completes the clamping of mucosal tissue, the puncture teeth pierce the mucosal tissue, thereby ensuring that the mucosal tissue will not fall off. Moreover, the disposable penetrating hemostatic clip can stably clamp the mucosal tissue, and the separation of the support tube and the sleeve is very convenient. Attached Figure Description

[0026] Figure 1The diagram shows the structure of the support tube of the disposable penetrating hemostatic clip in this embodiment, which is inserted into the handle.

[0027] Figure 2 Displayed as Figure 1 An enlarged structural diagram of point A.

[0028] Figure 3 The diagram shows the external structure of the disposable penetrating hemostatic clip of this embodiment with the upper and lower elastic clips in the open state.

[0029] Figure 4 The diagram shows a cross-sectional view of the upper and lower elastic clips of the disposable penetrating hemostatic clip in this embodiment when they are in the open state.

[0030] Figure 5 The diagram shown is a three-dimensional structural schematic of the notch pull rod of the disposable penetrating hemostatic clip in this embodiment.

[0031] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the upper and lower elastic clips of the disposable penetrating hemostatic clip in this embodiment when they are in the open state.

[0032] Figure 7 This diagram shows the internal structure of the disposable penetrating hemostatic clip in this embodiment when the upper and lower elastic clips are in a closed state, the upper and lower elastic clips clamp the tissue, and the limiting step prevents the connecting pin from moving.

[0033] Figure 8 The diagram shows an enlarged view of the upper and lower elastic clips of the disposable penetrating hemostatic clip in this embodiment, with the clips in a closed state and the clips clamping the tissue.

[0034] Figure 9 The diagram shows the internal three-dimensional structure of the disposable penetrating hemostatic clip in its initial state according to this embodiment.

[0035] Figure 10 The diagram shows an enlarged three-dimensional structure of the contact point between the connecting pin and the limiting step portion of the disposable penetrating hemostatic clip in its initial state, as shown in this embodiment.

[0036] Figure 11 The diagram shown is a three-dimensional internal structure of the disposable penetrating hemostatic clip in this embodiment when the notch pull rod and the connecting pin are separated.

[0037] Figure 12 The diagram shows a three-dimensional structure of the upper elastic clip of the disposable penetrating hemostatic clip of this embodiment, in which the hook hooks onto the first notch groove.

[0038] Figure 13The diagram shows a three-dimensional structure of the hook of the lower elastic clip of the disposable penetrating hemostatic clip in this embodiment, which hooks onto the second notch groove.

[0039] Figure 14 This is a three-dimensional structural diagram showing the puncture teeth of the disposable penetrating hemostatic clip in this embodiment when they are set on the upper elastic clip.

[0040] Figure 15 The diagram shows a three-dimensional structure of the disposable penetrating hemostatic clip of this embodiment, in which the toothed body connected to the first support plate is inclined relative to the first support plate.

[0041] Figure 16 The diagram shows the structure of the connection between the conical cap and the handle head of the disposable penetrating hemostatic clip in this embodiment.

[0042] Explanation of icon numbers

[0043] 1. Organization

[0044] 110 Handle

[0045] 111 Handle Head

[0046] 112 Head protrusion

[0047] 120 operating components

[0048] 130 support tube

[0049] 131 Metal Cap

[0050] 200 sleeves

[0051] 210 Limiting step section

[0052] 220 guide plate body

[0053] 221 Upper guide hole

[0054] 222 Lower guide hole

[0055] 231 First notch slot

[0056] 232 Second notch

[0057] 240 Contracting Department

[0058] 241 Receiver slope

[0059] 250 Sleeve Body

[0060] 260 Sleeve Connection Part

[0061] 310 steel wire rope

[0062] 311 Connecting piece

[0063] 320 takeover

[0064] 321 positioning plate

[0065] 330 Notch Tie Rod

[0066] 331 Pull rod body

[0067] 332 zipper puller

[0068] 333 Socket through hole

[0069] 334 Notch

[0070] 400 connecting shaft

[0071] 510 upper elastic clip

[0072] 511 Arc-shaped sheet

[0073] 512 Support sheet

[0074] 513 Plate Connecting Hole

[0075] 514 Hook

[0076] 520 Lower elastic clip

[0077] 530 piercing tooth

[0078] 531 Tooth body

[0079] 532 First Support Plate

[0080] 533 Transition Connection Plate

[0081] 534 Second Support Plate

[0082] 535 chamfer

[0083] 536 Rivets

[0084] 540 connecting pin

[0085] 600 Conical Cap

[0086] 610 Receiving groove Detailed Implementation

[0087] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0088] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0089] like Figures 1 to 16 As shown, the disposable penetrating hemostatic clip of this embodiment includes:

[0090] Handle 110;

[0091] The operating element 120 is mounted on the handle 110 and can move along the front and back direction of the handle 110;

[0092] The support tube 130 has its rear end located inside the handle 110;

[0093] The sleeve 200 is located in front of the support tube 130. The sleeve 200 has a limiting step 210 inside. The front end of the sleeve 200 is provided with a guide plate 220. The front end surface of the guide plate 220 is provided with an upper guide through hole 221 and a lower guide through hole 222.

[0094] A drive assembly, sequentially inserted into a support tube 130 and a sleeve 200, includes a wire rope 310, a connecting tube 320, and a notched tie rod 330. The wire rope 310 is inserted into the support tube 130, with its rear end connected to an operating component 120. Its front end is connected to the notched tie rod 330 via the connecting tube 320. A connecting piece 311 is provided on the wire rope 310, positioned behind the connecting tube 320. The notched tie rod 330 includes a pull... The rod body 331 and the pull head 332 connected to the front end of the rod body 331 are provided. The pull head 332 is provided with a receiving through hole 333, which is arranged in a vertical direction. The front end of the pull head 332 is provided with a notch 334, which communicates with the receiving through hole 333. The front end of the connecting tube 320 is provided with a positioning piece 321. The positioning piece 321 is located behind the pull head 332. The cross-sectional dimension of the positioning piece 321 is larger than the cross-sectional dimension of the connecting tube 320.

[0095] A connecting shaft 400 is sleeved on the outside of the connecting tube 320, and a support tube 130 is sleeved on the outside of the connecting shaft 400; the connecting shaft 400 can move along the axial direction of the connecting tube 320 within the support tube 130; the connecting shaft 400 can move along the axial direction of the connecting tube 320 within the sleeve 200; the connecting tube 320 and the connecting shaft 400 are clearance-fitted; the connecting shaft 400 and the support tube 130 are clearance-fitted; the connecting shaft 400 and the sleeve 200 are clearance-fitted.

[0096] The upper elastic clip 510 and the lower elastic clip 520 are arranged opposite to each other. The front end of the upper elastic clip 510 is provided with piercing teeth 530, which are made of biodegradable material. The upper elastic clip 510 and the lower elastic clip 520 have the same structure. The upper elastic clip 510 includes an inwardly recessed arc-shaped piece 511 and a support piece 512 connected to the front end of the arc-shaped piece 511. The rear part of the arc-shaped piece 511 is provided with a piece connection hole 513. The arc-shaped piece 511 of the upper elastic clip 510 is inserted into the upper guide through hole 221, and the arc-shaped piece 511 of the lower elastic clip 520 is inserted into the lower guide through hole 222.

[0097] A connecting pin 540 passes sequentially through the plate-connecting hole 513 of the upper elastic clip 510 and the plate-connecting hole 513 of the lower elastic clip 520, connecting the upper elastic clip 510 and the lower elastic clip 520 in series; the receiving through hole 333 of the notched pull rod 330 is sleeved on the connecting pin 540, and the notched pull rod 330 is located between the upper elastic clip 510 and the lower elastic clip 520;

[0098] When the disposable penetrating hemostatic clip is in its initial state, the connecting shaft 400 passes through the connecting tube 320 and the sleeve 200 in sequence. The connecting tube 320 and the sleeve 200 come into contact, and the upper elastic clip 510 and the lower elastic clip 520 close together. The two arc-shaped pieces 511 are inside the sleeve 200. When the notched pull rod 330 moves backward and the limiting step 210 blocks the connecting pin 540, the notched pull rod 330 continues to move backward. After the notch 334 of the notched pull rod 330 elastically deforms, its width increases, and the notched pull rod 330 separates from the connecting pin 540.

[0099] In the initial state, the disposable penetrating hemostatic clip of this embodiment has the connecting shaft 400 passing through the connecting tube 320 and the sleeve 200 in sequence. The connecting tube 320 and the sleeve 200 are in contact, and the upper elastic clip 510 and the lower elastic clip 520 are closed, with the two arc-shaped pieces 511 inside the sleeve 200. When the disposable penetrating hemostatic clip is used, the operator pulls the operating component 120, causing the operating component 120 to drive the wire rope 310 to move forward toward the handle 110. The wire rope 310 drives the notched pull rod 330 forward through the connecting tube 320. The pull head 332 of the notched pull rod 330 pushes the connecting pin 540, which drives the upper elastic clip 510 and the lower elastic clip 520 forward. The elastic clip 520 slides out of the sleeve 200. Under the action of the guide plate 220, the upper elastic clip 510 and the lower elastic clip 520 gradually open their angles. The wire rope 310 drives the connecting plate 311 forward, which in turn pushes the connecting shaft 400 forward. When the disposable penetrating hemostatic clip is placed in the correct position and orientation, the operator pulls the operating component 120, causing the operating component 120 to drive the wire rope 310 to move backward toward the handle 110. The wire rope 310, through the connecting pipe 320, drives the notched pull rod 330 backward. The notched pull rod 330 pulls the connecting pin 540 backward, which in turn drives the upper elastic clip 510 and the lower elastic clip 520 backward. As the upper elastic clip 510 and lower elastic clip 520 slide into the sleeve 200, the distance between them decreases, and the piercing teeth 530 of the upper elastic clip 510 gradually penetrate the mucosa of the tissue 1. The connecting pin 540 continues to slide towards the rear end of the sleeve 200 until it encounters the limiting step 210, at which point it stops moving. At this point, the upper elastic clip 510 and lower elastic clip 520 completely clamp the tissue 1. After the upper elastic clip 510 and lower elastic clip 520 completely clamp the tissue 1, the operator continues to pull the slip ring backward. Because the connecting pin 540 cannot continue to move after encountering the limiting step 210, the wire rope 310 will apply force at the notch. On rod 330, since the pull head 332 of the notched pull rod 330 is provided with a notch 334, under the action of force, the notch 334 undergoes elastic deformation and further increases in size. When the width of the notch 334 is greater than or equal to the diameter of the connecting pin 540, the notched pull rod 330 disengages from the connecting pin 540 and continues to move backward. During the backward movement of the connecting tube 320, the positioning piece 321 on the connecting tube 320 drives the connecting shaft 400 to move backward. After the front end of the connecting shaft 400 and the front end of the pull head 332 both enter the support tube 130, the support tube 130 and the sleeve 200 separate, and the support tube 130 and the drive assembly can be pulled out. The sleeve 200, the upper elastic clamp 510 and the lower elastic clamp 520 remain at the bleeding site to clamp and stop the bleeding.After approximately three weeks, the bleeding site tissue 1 heals, and the puncture tooth 530 degrades and is absorbed by the body. The sleeve 200, upper elastic clip 510, and lower elastic clip 520 naturally detach and are expelled from the body.

[0100] The disposable penetrating hemostatic clip of this embodiment is equipped with puncture teeth 530. While the disposable penetrating hemostatic clip completes the clamping of mucosal tissue 1, the puncture teeth 530 pierce the mucosal tissue 1, thereby ensuring that the mucosal tissue 1 will not fall off, that is, the wound will not be torn again. This disposable penetrating hemostatic clip can stably clamp the mucosal tissue 1, and the separation of the support tube 130 and the sleeve 200 is very convenient.

[0101] In this embodiment, the front-to-back direction of the disposable penetrating hemostatic clip is horizontal, and the up-to-down direction is vertical. The biodegradable material is magnesium alloy. The guide plate 220 is welded to the front end of the sleeve 200, and the guide plate 220 plays a guiding role during the opening and closing of the upper elastic clip 510 and the lower elastic clip 520. The front end of the support tube 130 is provided with a metal cap 131.

[0102] The connecting piece 311 is annular and is fitted onto the outer circumference of the wire rope 310. The cross-sectional dimension of the connecting piece 311 is larger than that of the connecting tube 320. The positioning piece 321 is circular.

[0103] The sleeve 200 has a first notch 231 and a second notch 232 that are arranged opposite to each other. Both the first notch 231 and the second notch 232 are located behind the limiting step portion 210. Along the front and rear direction of the pull head 332, the cross-sectional size of the pull head 332 decreases sequentially. When the notch pull rod 330 is separated from the connecting pin 540, the notch pull rod 330 continues to move backward, the rear end of the upper elastic clip 510 extends into the first notch 231, and the rear end of the lower elastic clip 520 extends into the second notch 232. Since the rear part of the upper elastic clip 510 is an arc-shaped piece 511 and the rear part of the lower elastic clip 520 is an arc-shaped piece 511, as the notch pull rod 330 continues to move backward, the upper part of the pull head 332 can push the arc-shaped piece 511 of the upper elastic clip 510 upward, so that the rear end of the arc-shaped piece 511 of the upper elastic clip 510 is inserted into the first notch groove 231; the lower part of the pull head 332 can push the arc-shaped piece 511 of the lower elastic clip 520 downward, so that the rear end of the arc-shaped piece 511 of the lower elastic clip 520 is inserted into the second notch groove 232; thus, the positions of the upper elastic clip 510 and the lower elastic clip 520 are fixed, preventing the upper elastic clip 510 and the lower elastic clip 520 from falling off the sleeve 200. In this embodiment, the upper surface and the lower surface of the pull head 332 are arranged opposite to each other, the upper surface of the pull head 332 is inclined downward, and the lower surface of the pull head 332 is inclined upward. The pull head 332 has a structure that retracts backward.

[0104] Hooks 514 are provided on the rear ends of the arc-shaped plate 511 of the upper elastic clip 510 and the arc-shaped plate 511 of the lower elastic clip 520, each hook 514 bending outwards. When the notch pull rod 330 separates from the connecting pin 540, the notch pull rod 330 continues to move backwards, and the hooks 514 of the upper elastic clip 510 hook onto the first notch groove 231, and the hooks 514 of the lower elastic clip 520 hook onto the second notch groove 232. This structure can further fix the positions of the upper elastic clip 510 and the lower elastic clip 520, preventing the upper elastic clip 510 and the lower elastic clip 520 from falling off.

[0105] The inner wall of the sleeve 200 has two opposing receiving portions 240. The inner surface of each receiving portion 240 is a receiving inclined surface 241. When the upper elastic clip 510 and the lower elastic clip 520 are closed, the receiving inclined surfaces 241 of the two receiving portions 240 respectively support the arc-shaped plate 511 of the upper elastic clip 510 and the arc-shaped plate 511 of the lower elastic clip 520. When the upper elastic clip 510 and the lower elastic clip 520 are closed, the receiving inclined surfaces 241 of the two receiving portions 240 can reduce the angle of the upper elastic clip 510 and the lower elastic clip 520, reducing the distance between the upper elastic clip 510 and the lower elastic clip 520. During the contraction process of the upper elastic clip 510 and the lower elastic clip 520, the upper elastic clip 510 gradually penetrates the mucosa of the tissue 1. The design of the inclined surface 241 also makes the opening and closing of the upper elastic clip 510 and the lower elastic clip 520 smoother.

[0106] The sleeve component 200 includes a sleeve body 250, a limiting step portion 210, and a sleeve connecting portion 260 connected sequentially from front to back. Along the front-rear direction of the sleeve component 200, the cross-sectional dimensions of the limiting step portion 210 decrease sequentially. The inner diameter of the sleeve body 250 is equal to the inner diameter of the front end of the limiting step portion 210, and the inner diameter of the sleeve connecting portion 260 is equal to the inner diameter of the rear end of the limiting step portion 210. This structure facilitates the machining of the sleeve component 200 and allows the limiting step portion 210 to block the connecting pin 540 in its movement path.

[0107] The puncture tooth 530 includes a tooth support and at least three tooth bodies 531. The tooth support includes a first support plate 532, a transition connecting plate 533, and a second support plate 534 connected in sequence. The first support plate 532, the transition connecting plate 533, and the second support plate 534 are all connected to the front end of the upper elastic clip 510. Each of the first support plate 532, the transition connecting plate 533, and the second support plate 534 is provided with a tooth body 531. In this embodiment, there are three tooth bodies 531, one on each of the first support plate 532, the transition connecting plate 533, and the second support plate 534. The tooth body 531 connected to the first support plate 532 is inclined relative to the first support plate 532, with an inclination angle B of 20°. The tooth body 531 connected to the second support plate 534 is also inclined with an angle of 20° relative to the second support plate 534 to prevent the tooth support from damaging the endoscope.

[0108] Each tooth body 531 has a chamfer 535 at the end away from the tooth support to enhance the piercing function.

[0109] The handle 110 has a handle head 111 at its front end, and a head protrusion 112 on the outer circumferential surface of the handle head 111. A receiving groove 610 is provided on the inner side of a conical cap 600. The handle head 111 is inserted into the conical cap 600, and the head protrusion 112 is inserted into the receiving groove 610. In this embodiment, the front end of the handle head 111 is a conical structure with a cross-sectional dimension decreasing from back to front. The rear end of the inner side of the conical cap 600 is for the conical structure to be inserted into. This structure facilitates the assembly of the handle 110 and the conical cap 600. The head protrusion 112 of the handle head 111 corresponds to the receiving groove 610. Therefore, the assembly of the handle 110 and the conical cap 600 is achieved through elastic deformation, which can reduce welding and other connection processes.

[0110] The support tube 130 is a spring tube, which allows it to be bent. The operating element 120 is a slip ring, which facilitates the operator's actuation. The upper elastic clamp 510 has a rivet hole, and the rivet 536 passes through the rivet hole and the mounting hole on the piercing tooth 530, connecting the upper elastic clamp 510 to the piercing tooth 530. When the upper elastic clamp 510 and the lower elastic clamp 520 are fully closed, they are engaged.

[0111] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0112] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A disposable penetration hemostat characterized in that, The utility model relates to a kind of drive mechanism, including: Handle (110); Operating member (120), installed on the handle (110), and can be moved along the front-back direction of the handle (110); Support pipe (130), the rear end of the support pipe (130) is arranged inside the handle (110); Sleeve member (200), in front of the support pipe (130), the inside of the sleeve member (200) is equipped with limiting step portion (210);The front end of the sleeve member (200) is equipped with guide piece body (220), and the front end surface of the guide piece body (220) is equipped with upper guide through-hole (221) and lower guide through-hole (222); Drive assembly, sequentially into the support pipe (130) and the sleeve member (200), the drive assembly includes steel wire rope (310), butt joint pipe (320) and notched pull rod (330);The steel wire rope (310) is threaded into the support pipe (130), and the rear end of the steel wire rope (310) is connected with the operating member (120), and the front end of the steel wire rope (310) is connected with the notched pull rod (330) by the butt joint pipe (320), and the steel wire rope (310) is equipped with connecting piece (311), and the connecting piece (311) is in the rear of the butt joint pipe (320);The notched pull rod (330) includes pull rod body (331) and pull head (332) connected with the front end of the pull rod body (331), and the pull head (332) is equipped with receiving through-hole (333), and the receiving through-hole (333) is arranged along vertical direction, and the front end of the pull head (332) is equipped with notch portion (334), and the notch portion (334) is communicated with the receiving through-hole (333);The front end of the butt joint pipe (320) is equipped with positioning piece (321);The positioning piece (321) is in the rear of the pull head (332);The size of the cross section of the positioning piece (321) is greater than the size of the cross section of the butt joint pipe (320); Connecting shaft (400), sleeve in the outside of the butt joint pipe (320), and the support pipe (130) is sleeved in the outside of the connecting shaft (400);The connecting shaft (400) can be moved in the support pipe (130) along the axial direction of the butt joint pipe (320);The connecting shaft (400) can be moved in the sleeve member (200) along the axial direction of the butt joint pipe (320); The upper elastic clamping piece (510) and the lower elastic clamping piece (520) are oppositely arranged, a puncture tooth (530) is arranged on the front end of the upper elastic clamping piece (510), and the puncture tooth (530) is made of degradable material; the upper elastic clamping piece (510) and the lower elastic clamping piece (520) are the same in structure, the upper elastic clamping piece (510) comprises an inwardly recessed arc-shaped piece body (511) and a supporting piece body (512) connected with the front end of the arc-shaped piece body (511), and the rear part of the arc-shaped piece body (511) is provided with a piece body connecting hole (513); the arc-shaped piece body (511) of the upper elastic clamping piece (510) is inserted into the upper guide through hole (221), and the arc-shaped piece body (511) of the lower elastic clamping piece (520) is inserted into the lower guide through hole (222); A connecting pin (540) sequentially passes through the piece body connecting hole (513) of the upper elastic clamping piece (510) and the piece body connecting hole (513) of the lower elastic clamping piece (520), and connects the upper elastic clamping piece (510) and the lower elastic clamping piece (520) in series; the receiving through hole (333) of the notched pull rod (330) is sleeved on the connecting pin (540), and the notched pull rod (330) is located between the upper elastic clamping piece (510) and the lower elastic clamping piece (520); When the disposable puncture type hemostatic clip is in an initial state, the connecting shaft (400) sequentially passes through the butt joint pipe (320) and the sleeve piece (200), the butt joint pipe (320) and the sleeve piece (200) are in contact, the upper elastic clamping piece (510) and the lower elastic clamping piece (520) are folded, and the two arc-shaped piece bodies (511) are located inside the sleeve piece (200); after the notched pull rod (330) moves backward and the limiting step portion (210) blocks the connecting pin (540), the notched pull rod (330) continues to move backward, the notched portion (334) of the notched pull rod (330) is elastically deformed to increase in width, and the notched pull rod (330) is separated from the connecting pin (540); The sleeve piece (200) is provided with oppositely arranged first and second notched grooves (231) and (232), and the first and second notched grooves (231) and (232) are located behind the limiting step portion (210); along the front-rear direction of the pull head (332), the size of the cross section of the pull head (332) decreases sequentially; after the notched pull rod (330) is separated from the connecting pin (540), the notched pull rod (330) continues to move backward, the rear end of the upper elastic clamping piece (510) extends into the first notched groove (231), and the rear end of the lower elastic clamping piece (520) extends into the second notched groove (232); The rear end of the arc-shaped sheet body (511) of the upper elastic clamping sheet (510) and the rear end of the arc-shaped sheet body (511) of the lower elastic clamping sheet (520) are both provided with hooks (514), each of which is outwardly bent; after the gap pull rod (330) is separated from the connecting pin (540), the gap pull rod (330) continues to move backward, the hook (514) of the upper elastic clamping sheet (510) hooks the first gap groove (231), and the hook (514) of the lower elastic clamping sheet (520) hooks the second gap groove (232). The sleeve piece (200) comprises a sleeve body (250), a limiting step portion (210) and a sleeve connecting portion (260) connected in sequence from front to back; along the front-to-back direction of the sleeve piece (200), the size of the cross section of the limiting step portion (210) decreases in sequence, the inner diameter of the sleeve body (250) is equal to the inner diameter of the front end of the limiting step portion (210), and the inner diameter of the sleeve connecting portion (260) is equal to the inner diameter of the rear end of the limiting step portion (210).

2. The disposable penetration hemostasis clamp according to claim 1, characterized in that: The inner wall of the sleeve piece (200) is provided with two oppositely arranged receiving portions (240), the inner side surface of each receiving portion (240) is a receiving inclined surface (241), and when the upper elastic clamping sheet (510) and the lower elastic clamping sheet (520) are closed, the receiving inclined surfaces (241) of the two receiving portions (240) respectively hold the arc-shaped sheet body (511) of the upper elastic clamping sheet (510) and the arc-shaped sheet body (511) of the lower elastic clamping sheet (520).

3. The disposable penetration hemostasis clamp according to claim 1, characterized in that: The puncture tooth (530) comprises a tooth portion support and at least three tooth bodies (531), the tooth portion support comprises a first support plate (532), a transition connecting plate (533) and a second support plate (534) connected in sequence, the first support plate (532), the transition connecting plate (533) and the second support plate (534) are all connected with the front end of the upper elastic clamping sheet (510), and the first support plate (532), the transition connecting plate (533) and the second support plate (534) are all provided with the tooth body (531).

4. The disposable penetration hemostasis clamp according to claim 3, characterized in that: The end of each tooth body (531) away from the tooth portion support is provided with a chamfer (535).

5. The disposable penetration hemostasis clamp according to claim 1, characterized in that: The front end of the handle (110) is provided with a handle head portion (111), the outer peripheral surface of the handle head portion (111) is provided with a head portion protruding piece (112), the inner side surface of a conical cap (600) is provided with a receiving groove portion (610), the handle head portion (111) is inserted into the conical cap (600), and the head portion protruding piece (112) is inserted into the receiving groove portion (610).

6. The disposable penetration hemostasis clamp according to claim 1, characterized in that: The support pipe (130) is a spring pipe.

7. The disposable penetration hemostasis clamp according to claim 1, characterized in that: The operating piece (120) is a slip ring.

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