Medical closure clip

Abstract

A medical closure clip is assembled by at least two closure clip parts (1), the closure clip parts (1) include connecting ends and clamping ends connected with each other, the connecting ends are connected to form a ring structure through a connecting assembly (18); the clamping end is provided with a clamping jaw (3); the clamping jaw (3) is made of shape memory material; the ring structure connecting assembly (18) includes a socket (6) located at the connecting end of one of the closure clip parts (1) and a plug (5) located at the connecting end of the adjacent other closure clip part (1), the plug (5) is adapted to be inserted into the socket (6); the connecting assembly (18) is arranged between the connecting pieces of at least one set of two connecting ends connected with each other, when the connecting piece is separated from at least one of the connecting ends, the plug (5) can be separated from the socket (6). The medical closure clip is circumferentially disconnected, the connecting assembly (18) is reinforced by the connecting piece, when it is necessary to take out the medical closure clip, the connecting piece can be removed, so that the plug (5) can be separated from the socket (6) under the action of external force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a medical closure clip. BACKGROUND

[0002] The medical closure clip is mainly used for clamping and suturing human body wound tissue in endoscopic surgery, and needs to be taken out after the wound tissue recovers. There is an integrated closure clip in the prior art, the rear end of which is a ring-shaped part, the front end is a clamping jaw, and a pull wire is connected to the ring-shaped part. The closure clip is taken out by pulling the pull wire. In this process, the clamping jaw may cause damage to the human body tissue due to the strong clamping force of the clamping jaw, causing secondary injury. Meanwhile, it is difficult to take out. Therefore, a medical closure clip that is easy to take out needs to be designed. SUMMARY

[0003] In order to solve the technical problem of the medical closure clip in the prior art that may potentially cause damage to the human body tissue during the taking-out process, causing secondary injury, and being difficult to take out, the present application provides a medical closure clip to solve the above problems.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A medical closure clip is assembled by at least two closure clip parts, the closure clip part includes a connecting end and a clamping end, the connecting end is connected to form a ring structure through a connecting assembly; the clamping end is provided with a clamping jaw, the clamping jaws can be engaged with each other in a natural state after the closure clip parts are assembled into the medical closure clip; the clamping jaw is made of shape memory material; the connecting assembly includes a socket located at the connecting end of one of the closure clip parts and a plug located at the connecting end of the adjacent other closure clip part, the plug is adapted to be inserted into the socket; the connecting assembly further includes a connecting piece connecting the adjacent two connecting ends, when the connecting piece is separated from at least one of the connecting ends, the plug can be separated from the socket.

[0006] Further, the plug and the socket of the adjacent closure clip part are buckled to each other in the circumferential direction.

[0007] Further, the opening width of the socket is smaller than the maximum width of the plug located in the socket.

[0008] Further, the connecting piece includes a clasp and a first binding line, the clasp is sleeved on the connecting assembly of the ring structure, the clasp is a ring structure that can be circumferentially broken and deformed under the action of external force, one end of the first binding line is connected to the clasp, and the other end of the first binding line is connected to the plug.

[0009] Further, the connecting member is a clasp ring sleeved on the outer circumferential surface of the ring structure, or a C-shaped spring sleeved on the connecting assembly, or a sleeve sleeved on the connecting assembly.

[0010] Further, the connecting member is made of bioabsorbable medical material.

[0011] Further, the connecting member is a second binding wire connecting the plug and the connecting end adjacent to the plug.

[0012] Further, the second binding wire is made of bioabsorbable medical material.

[0013] Further, the connecting assembly has two connecting end surfaces protruding from both sides of the axial direction of the ring structure, and the connecting member is a third binding wire connecting the opposite ears on the adjacent connecting ends.

[0014] Further, the ears and the connecting ends form a recessed winding part, and the third binding wire is wound in the winding part of the ear.

[0015] Further, the socket extends to the outer circumferential surface of the ring structure.

[0016] Further, the clasp ring is a split open ring.

[0017] Further, the clasp ring is a closed ring structure, and a connection weak area is arranged on the clasp ring, which can be circumferentially fractured under external force.

[0018] The present application also provides a medical closure clamp, which is composed of at least two closure clamp parts, each of which comprises a connecting end and a clamping end connected to each other, and the connecting ends of the closure clamp parts are connected in sequence to form a ring structure; the clamping end is provided with a clamping jaw made of shape memory material, and the clamping jaws of the medical closure clamp are engaged with each other in a natural state; the connection part of the ring structure comprises a socket on one of the closure clamp parts and a plug on the adjacent other closure clamp part, and the plug is adapted to be inserted into the socket; a pulling wire is connected to the plug of the ring structure, and when the pulling wire is pulled, the plug and the socket connected to each other can be separated.

[0019] Further, the inner surface of the socket is a circular arc surface or a rectangular surface.

[0020] Further, the pulling wire is located on the outer surface of the plug.

[0021] Further, the plug has two through wire holes, and the two ends of the pulling wire are connected to the two wire holes.

[0022] Further, the socket extends to the outer circumferential surface of the ring structure.

[0023] Further, the socket does not extend to the inner circumferential surface of the ring structure.

[0024] The application also provides a medical closure clip, comprising at least two closure clip parts, the closure clip parts comprising connecting ends and clamping ends connected to each other, the connecting ends of each of the closure clip parts being connected end to end to form a ring structure; the clamping ends are provided with clamping jaws made of shape memory material; the clamping jaws can be engaged with each other in a natural state after the closure clip parts are assembled into the medical closure clip; the medical closure clip further comprises a connecting piece connecting adjacent connecting ends, and the connecting piece can be separated from at least one of the connecting ends under the action of an external force.

[0025] Further, the connecting piece is a ring embracing the outer circumferential surface of the ring structure.

[0026] Further, the ring is made of bioabsorbable medical material.

[0027] Further, the connecting end has a lug protruding at least on one side along the axial direction of the ring structure, and the connecting piece is a wire turn connecting corresponding lugs on adjacent connecting ends.

[0028] Further, a recessed winding part is formed between the lug and the connecting end, and the wire turn is wound in the winding part of the lug.

[0029] Further, the wire turn is a medical grade PE suture.

[0030] Further, the wire turn is made of bioabsorbable medical material.

[0031] The beneficial effects of the application are:

[0032] The medical closure clip described in the application is formed by the connecting ends of at least two closure clip parts, the connecting ends are connected end to end to form a ring structure, the connecting parts of the ring structure are limited in the circumferential direction by the plug and the socket to maintain the ring structure, the pull wire is used to pull the plug outward to separate the connecting parts, the engaged clamping jaws can be separated, which facilitates the removal of the medical closure clip and prevents the tearing of the wound during the removal of the overall closure clip, which may cause secondary bleeding.

[0033] The medical closure clip described in the application is formed by the end face connection of at least two closure clip parts, and the connecting assembly is reinforced by the connecting piece, when it is necessary to remove the medical closure clip, the connecting piece can be removed to enable the plug to be separated from the socket under the action of an external force.

[0034] The medical closure clip is circumferentially disconnected, assembled by at least two closure clip parts, the connecting ends of adjacent closure clip parts are connected by a connecting piece, when the medical closure clip needs to be taken out, the connecting piece can be removed, the closure clip parts are separated from each other, so that the clamping jaws of the closure clip parts are loosened and the clamping state is released.

[0035] An annular embracing ring is used to wholly embrace the outer periphery of all the closure clip parts, so as to limit the opening of the closure clip parts, when the clamping needs to be released, the embracing ring is pushed along the axial direction to separate from the closure clip parts.

[0036] The connecting ends of the closure clip parts are provided with lugs, the lugs on the adjacent connecting ends are bound by a wire loop, the connection of the two is realized, when the clamping needs to be released, the wire loop is loosened by pulling. BRIEF DESCRIPTION OF DRAWINGS

[0037] The application will be further described below in combination with the drawings and examples.

[0038] Figure 1 is the front view of one of the embodiments of the medical closure clip described in the application;

[0039] Figure 2 is the front view of another embodiment of the medical closure clip described in the application;

[0040] Figure 3 is the side view of Figure 2 ;

[0041] Figure 4 is the side view of the closure clip part of one of the embodiments of the application;

[0042] Figure 5 is the front view of one of the embodiments of the medical closure clip described in the application in the assembled state;

[0043] Figure 6 is the exploded view of Figure 5 the clasp ring and the medical closure clip;

[0044] Figure 7 is the schematic view of the medical closure clip shown in Figure 5 loaded on the clip applier cap;

[0045] Figure 8 is the schematic view of the medical closure clip shown in Figure 5 when taken out;

[0046] Figure 9 is the perspective view of one of the embodiments of the medical closure clip described in the application;

[0047] Figure 10This is a perspective view of one embodiment of the medical closure clip described in this invention;

[0048] Figure 11 yes Figure 10 The main view;

[0049] Figure 12 This is a perspective view of one embodiment of the medical closure clip described in this invention;

[0050] Figure 13 yes Figure 12 The main view;

[0051] Figure 14 This is a front view of one embodiment of the medical closure clip described in this invention;

[0052] Figure 15 This is a front view of one embodiment of the medical closure clip described in this invention;

[0053] Figure 16 This is an assembled perspective view of another embodiment of the medical closure clip described in this invention;

[0054] Figure 17 This is a front view of another embodiment of the medical closure clip (excluding the retaining ring) described in this invention;

[0055] Figure 18 It is based on Figure 17 Side view.

[0056] In the diagram, 1. Closing clamp section, 2. Threading hole, 3. Clamping claw, 4. Fastening part, 5. Plug, 6. Socket, 7. Pull wire, 8. Snap ring, 801. Notch, 9. Clamping ring, 10. C-shaped snap ring, 11. Sleeve, 12. Second binding wire, 13. Support ear, 14. Third binding wire, 15. Ring structure, 16. Limiting groove, 17. Winding part, 18. Connecting component, 19. First binding wire, 20. Wire coil, 21. Clamping cap. Detailed Implementation

[0057] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0058] This invention proposes a medical closure clip, see [link to relevant documentation]. Figure 1The medical closure clip is formed by splicing end portions of at least two closure clip parts 1, the closure clip parts 1 include connecting ends and clamping ends connected with each other, the connecting ends of each of the closure clip parts 1 are connected in sequence in a head-to-tail mode to form a ring structure; at least two clamping jaws 3 capable of being engaged with each other are arranged at one end of the ring structure in a width direction, that is, the clamping end, the width direction refers to a direction parallel to a central axis of the ring structure, the clamping jaws 3 are made of a shape memory material, such as a nickel-titanium alloy, and a connecting part 4 of the ring structure includes a spigot 6 on one of the closure clip parts and a spigot 5 on the other adjacent closure clip part, the spigot 5 is adapted to be inserted into the spigot 6 and is limited in a circumferential direction, and the spigot 5 and the spigot 6 can be limited to each other when connected.

[0059] The cap 21 (medical transparent mucosa suction cap) is an accessory commonly used in endoscopic treatment, and is widely used for assisting hemostatic treatment, foreign body removal, magnifying endoscopic examination, improving endoscopic imaging observation of incision line position and observing lesions in difficult parts. Figure 7 Before actual surgery, the cap 21 (medical transparent mucosa suction cap) is sleeved on the outer peripheral side of the front end of the lens of the endoscope, the medical closure clip is loaded on the cap 21, at this time, the clamping jaws 3 are opened by the cap 21, the medical closure clip can enter the human body cavity along with the endoscope, after the medical closure clip is released to the target tissue, due to the shape memory characteristic, the clamping jaws 3 restore the original shape, so that the clamping jaws 3 of the plurality of closure clip parts 1 are engaged with each other, the target tissue is clamped stably, and the purpose of closing the wound and stopping bleeding is achieved. The spigot 5 and the spigot 6 in the application are connected in a circumferential direction, that is, limited by relative movement in the circumferential direction; the spigot 5 is connected with a pulling line 7, when the pulling line 7 is pulled, the spigot 5 and the spigot 6 connected in a circumferential direction can be separated, a surgical instrument with pulling capacity such as a hook or a biopsy forceps is used to pull the pulling line 7, the spigot 5 is separated from the spigot 6, the connecting ends of the two connected closure clip parts 1 can be separated, and then the engaged clamping jaws 3 are separated, so that the closure clip part 1 can be removed.

[0060] In one specific embodiment of the application, as shown in Figures 1-3 The medical closure clip is formed by splicing end portions of at least two closure clip parts 1, the closure clip parts 1 include connecting ends and clamping ends connected with each other, the connecting ends of each of the closure clip parts 1 are connected in sequence in a head-to-tail mode to form a ring structure; at least two clamping jaws 3 capable of being engaged with each other are arranged at one end of the ring structure in a width direction, that is, the clamping end, the width direction refers to a direction parallel to a central axis of the ring structure, the clamping jaws 3 are made of a shape memory material, such as a nickel-titanium alloy, and a connecting part 4 of the ring structure includes a spigot 6 on one of the closure clip parts and a spigot 5 on the other adjacent closure clip part, the spigot 5 is adapted to be inserted into the spigot 6 and is limited in a circumferential direction, and the spigot 5 and the spigot 6 can be limited to each other when connected. Figure 3 The spigot 6 refers to a groove on one of the circumferential end portions of the connecting endFigure 4 As shown in the figure, the plug 5 refers to the structure of one of the circumferential ends of the convex connecting end, and the plug 5 is adapted to be inserted into the socket 6; the plug 5 and the socket 6 are preferably buckled with each other in the circumferential direction, so as to play a circumferential limiting role. In order to facilitate batch processing, the two closed clip parts 1 are the same in structure, and the two ends of each closed clip part 1 are respectively the plug 5 and the socket 6, at this time the plug 5 on each buckling part 4 is connected with the pulling line 7, one of the pulling lines 7 can be pulled to separate the two clamping jaws 3, at this time one connecting end of the two closed clip parts 1 is still connected by the buckling part 4, or both of the pulling lines 7 are pulled to separate the ring structure into two independent closed clip parts 1, and then the surgical instrument with pulling capacity such as a hook or a sample clamp is used to take out.

[0061] In other optional embodiments, the ring structure can also be formed by three or four or more different closed clip parts 1 connected end to end at the connecting end.

[0062] The inner surface of the socket 6 in the embodiment is a circular arc surface or a rectangular surface, the plug 5 and the socket 6 are the same in shape, when the inner surface of the socket 6 is a circular arc surface (as shown in the figure), the opening width of the socket 6 is smaller than the diameter of the plug 5 (as shown in the figure); when the inner surface of the socket 6 is a rectangular surface, the opening width of the socket 6 is smaller than the width of the plug 5. Figure 1 Figure 2 In order to be able to pull the plug 5 outwardly, as preferred, the pulling line 7 is located on the outer surface of the plug 5. In the embodiment, the plug 5 has two through-threading holes 2, the two ends of the pulling line 7 are connected to the two-threading holes 2, so as to form a pulling area between the two-threading holes 2, and the surgical instrument with pulling capacity such as a hook or a sample clamp can directly hook the pulling line 7 between the two-threading holes 2.

[0063] If the socket 6 does not penetrate the circumferential outer surface and the circumferential inner surface of the ring structure, the plug 5 will be wrapped by the socket 6, at this time the plug 5 and the socket 6 need to have a certain staggered space in the thickness direction, so that the plug 5 can move in the thickness direction to be disconnected with the socket 6, in order to make the plug 5 easier to pull, as preferred, the socket 6 extends to the circumferential outer surface of the ring structure, so that the outer surface of the plug 5 is exposed, at this time the plug 5 can be moved outwardly by pulling the pulling line 7 outwardly, so as to be separated from the socket 6.

[0064]

[0065] ​​The insertion hole 6 can or can not pass through the inner circumferential surface of the ring structure. When the insertion hole 6 passes through the inner circumferential surface of the ring structure, the plug 5 and the insertion hole 6 are in contact with the human tissue at the same time, and the expansion force of the human tissue on the plug 5 and the insertion hole 6 can be different, which can cause the plug 5 and the insertion hole 6 to separate from each other. Therefore, as a preferred embodiment, the insertion hole 6 does not extend to the inner circumferential surface of the ring structure, that is, the insertion hole 6 does not pass through the inner circumferential surface of the closed clamp part 1. Therefore, the plug 5 is not in contact with the human tissue, and when the plug 5 is subjected to the expansion force of the human tissue, the plug 5 and the insertion hole 6 expand synchronously at the same fastening position 4. In the circumferential direction, the fastening force of the plug 5 and the insertion hole 6 gradually increases, and the plug 5 will not automatically separate from the insertion hole 6.

[0066] Referring to Figures 5-15 The present application also provides a medical closed clamp, which is assembled by at least two closed clamp parts 1. The closed clamp part 1 comprises a connecting end and a clamping end which are connected to each other. The connecting end is connected to form a ring structure by a connecting assembly. The clamping end is provided with a clamping jaw 3. The clamping jaws 3 can be engaged with each other in a natural state after the closed clamp part 1 is assembled into the medical closed clamp. The clamping jaw 3 is made of a shape memory material. Before the actual operation, the medical closed clamp is loaded on a clamp applying cap 21 (a medical transparent mucosa suction cap). The clamp applying cap 21 (a medical transparent mucosa suction cap) is an accessory commonly used in endoscopic treatment and is widely used in auxiliary hemostatic treatment, foreign body removal, magnifying endoscopic examination, improving incision line position and endoscopic imaging observation of difficult parts. Figure 7 The clamp applying cap 21 of the present embodiment is loaded on the front end of the lens of the endoscope. At this time, the clamping jaws 3 are separated by the clamp applying cap 21. After the endoscope passes through the body cavity, observes and finds the target tissue through the lens, and releases the medical closed clamp to the target tissue, the clamping jaws 3 will restore the original shape due to the shape memory property, so that the clamping jaws 3 of the plurality of closed clamp parts 1 are engaged with each other, stably clamping the target tissue to achieve the purpose of closing the wound and stopping bleeding. The connecting assembly comprises an insertion hole 6 located at the connecting end of one of the closed clamp parts 1 and a plug 5 located at the connecting end of the other closed clamp part 1 adjacent to the one closed clamp part 1. The plug 5 is adapted to be inserted into the insertion hole 6. The connecting assembly further comprises a connecting piece arranged between at least one set of two connecting ends connected to each other. The connecting piece mainly has the effect of stable connection. When the connecting piece is separated from at least one of the connecting ends, the plug 5 can be separated from the insertion hole 6.

[0067] When the number of connecting pieces is less than the number of plugs 5 or insertion holes 6, the plugs 5 and the insertion holes 6 are mutually fastened at the connecting ends where no connecting pieces are arranged. At the connecting ends where the connecting pieces are arranged, the plugs 5 and the insertion holes 6 can only be mutually butted (or can be mutually fastened), and the two adjacent connecting ends can be pulled by the connecting pieces.

[0068] The connecting member can connect the two adjacent connecting ends, and can ensure that the ring structure will not fail within a certain period of time. When the medical closure clip needs to be removed, the connecting member is removed, and the plug 5 can protrude outward to separate from the socket 6 under the expansion of the human tissue or the slight pulling force in the surgical process. The medical closure clip is disassembled into multiple separated closure clip parts 1, and the process of removing and taking out the medical closure clip will not cause pulling damage to the human tissue.

[0069] The following describes several embodiments of the medical closure clip according to different connecting members:

[0070] Embodiment one

[0071] As shown in Figures 5-8 , a medical closure clip is provided, which is formed by two closure clip parts 1 connected end to end. The connecting ends of the two closure clip parts 1 are connected to form a ring structure, and the clamping ends of the two closure clip parts 1 are engaged with each other. The clamping jaws 3 are made of a shape memory material, such as nickel-titanium alloy. In the natural state, the two clamping jaws 3 engage and clamp the human tissue. Under the action of external force, the two clamping jaws 3 are opened. The natural state refers to a state without external force.

[0072] In this embodiment, there is at least one set of connecting assembly 18, which includes a socket 6 at the connecting end of one of the closure clip parts 1 and a plug 5 at the connecting end of the adjacent other closure clip part 1. The socket 6 refers to a groove at one of the circumferential ends of the connecting end, and the plug 5 refers to a structure protruding from one of the circumferential ends of the connecting end. The plug 5 is adapted to be inserted into the socket 6. The plug 5 and the socket 6 are preferably buckled with each other in the circumferential direction, which can play a circumferential limiting role. Without radial deviation, the ring structure can maintain the ring structure. The connecting assembly further includes a connecting member connecting the two adjacent connecting ends, which mainly plays a stable connecting effect. When the plug 5 is separated from the socket 6, the connecting member is separated from at least one of the connecting ends. When the medical closure clip is removed, one of the connecting members can be removed to disconnect the adjacent closure clip parts 1, causing the ring structure to separate. At this time, the other end of the two closure clip parts 1 is still connected to each other, or both connecting members are removed, so that the medical closure clip is disassembled into two independent closure clip parts 1. The separated or one-end-connected closure clip parts 1 are removed using the hook.

[0073] The circumferential connection between the plug 5 and the socket 6 can be achieved through the following structure: the width of the opening side of the socket 6 is less than the maximum width of the plug 5 located inside the socket 6, so that the plug 5 will not detach from the socket 6 when subjected to only circumferential force. In this design, except for the gripper 3, which needs to be made with a sharp or pointed end face to clamp tissue for wound closure or hemostasis, all other structures are rounded to reduce harm to human tissue, avoiding sharp angles or end faces. In this embodiment, the inner surface of the socket 6 is curved, and the plug 5 has the same shape as the socket 6; therefore, the opening width of the socket 6 is less than the diameter of the plug 5.

[0074] In another embodiment not shown, the socket 6 does not penetrate the outer or inner circumferential surface of the annular structure. The plug 5 is inserted into the socket 6. At this time, the plug 5 and the socket 6 need to be staggered in the thickness direction so that the plug 5 can move along the thickness direction and then disengage from the socket 6. In order to make the plug 5 easier to pull, preferably, the socket 6 extends to the outer circumferential surface of the annular structure, so that the outer surface of the plug 5 can be exposed. At this time, simply pulling the plug 5 outward will make the plug 5 move outward and thus disengage from the socket 6.

[0075] In this embodiment, the connector includes a retaining ring 8 and a first binding wire 19. However, the retaining ring 8 and the first binding wire 19 do not need to be simultaneously installed on the connecting ends between each pair of connected closure clip segments 1. For a medical closure clip forming a ring structure, it is only necessary to install the retaining ring 8 on one pair of connected closure clip segments 1. The remaining connecting ends are connected only through the plug 5 and the socket 6. Furthermore, a retaining ring 8 can be provided for reinforcement. The retaining ring 8 can be a ring made of nickel-titanium alloy. The retaining ring 8 is fitted onto the connecting end of the closure clip segment 1, and the retaining ring 8 is a ring structure that can be circumferentially broken and deformed under external force. For example, in this embodiment, the retaining ring 8 is a circumferentially broken open ring, that is, the retaining ring 8 has a notch 801 (e.g., Figure 6 (As shown), instead of a closed ring structure, one end of the first binding thread 19 is connected to the retaining ring 8, and the other end of the first binding thread 19 is connected to the plug 5. The first binding thread 19 can be a medical-grade PE suture. The first binding thread 19 can be riveted to the retaining ring 8 and the plug 5, or small holes can be machined on the plug 5 and the retaining ring 8, with both ends of the first binding thread 19 tied to the corresponding small holes. In another embodiment (not shown), the retaining ring 8 can also be a closed ring structure, with a weak connection area provided on the retaining ring 8. The weak connection area can break circumferentially under external force. The weak connection area can be a circumferentially cut blind groove, so that the retaining ring 8 is easy to break and deform at the blind groove when subjected to external pulling force.

[0076] When the medical closure clip needs to be taken out, after the endoscope enters the human body cavity, a surgical instrument with pulling ability such as a taking hook or a sampling forceps is arranged through the endoscope channel hole. In this embodiment, the taking hook is taken as an example. When the hook takes the first binding line 19 and pulls it backward, the first binding line 19 drives the deformation of the clasp 8 (the gap 801 part or the blind groove is easy to open), so that the clasp 8 is separated from the connecting end, and further pulling force is applied. The first binding line 19 further drives the plug 5 to separate from the socket 6, so that the clamping relationship between the two is invalid, thereby making the connecting structure where the deformed clasp 8 is located invalid (as shown in Figure 8 The two originally connected connecting ends of the medical closure clip are separated to release the clamping state, and finally the taking hook, the endoscope and the medical closure clip are taken out of the human body.

[0077] In addition, in order to avoid the circumferential movement of the clasp 8, a limiting groove 16 can be arranged on the outer periphery of one of the connecting ends, and the clasp 8 is clamped in the limiting groove 16. Because the width of the connecting end on the side where the plug 5 is located is relatively smaller than the width on the side where the socket 6 is located, in this embodiment, the limiting groove 16 is preferentially arranged on the connecting end on the side where the socket 6 is located. After the ring-shaped structure is formed and the clasp 8 is installed, the socket 6 and the plug 5 can be bound by the clasp 8. In this embodiment, the plug 5 is connected with the first binding line 19, and under the action of the pulling force of the first binding line 19, the plug 5 can be easily pulled outward. Therefore, the socket 6 can penetrate the connecting end of the closure clip part 1 in the thickness direction (the thickness direction refers to the radial direction of the ring-shaped structure), that is, the plug 5 can be in contact with the human tissue, and when the human tissue expands, an outward pushing force can be applied to the plug 5. The socket 6 can also not penetrate in the thickness direction, but only extend to the outer periphery of the connecting end. At this time, the plug 5 is not in contact with the human tissue, and the connecting assembly 18 is only in contact with the human tissue on the inner periphery of one of the connecting ends. Therefore, the human tissue cannot directly apply a pushing force to the plug 5. At this time, an external force is needed to make the plug 5 move outward, so that the plug 5 is disconnected from the socket 6.

[0078] In other optional embodiments, the inner surface of the socket 6 can also be a rectangular surface. At this time, the opening width of the socket 6 is smaller than the width of the plug 5 located in the socket 6.

[0079] Embodiment two

[0080] As Figure 9As shown, the connecting member in the embodiment is a ring holder 9 sleeved on the outer circumferential surface of the ring structure. The ring holder 9 is a ring structure wrapped around the outer circumferential surface of the ring structure, and is used to fix the connection relationship between the plug 5 and the socket 6. When the medical closure clip needs to be taken out, a surgical instrument with pulling or pushing ability such as a taking-out hook or a sampling forceps is used to push or pull the ring holder 9, so that the ring holder 9 is separated from the ring structure. Since there is no component to pull the plug 5 in the embodiment, when the socket 6 penetrates the connecting end of the closure clip part 1 in the thickness direction, the plug 5 can be separated from the socket 6 by the expansion force of the human tissue. When the socket 6 only extends to the outer circumferential surface of the connecting end, the plug 5 needs to be pushed by the taking-out hook to separate the plug 5 from the socket 6.

[0081] Embodiment Three

[0082] The connecting member in the embodiment is a C-shaped clamp spring 10 sleeved on the connecting assembly 18. Specifically, the opening side of the C-shaped clamp spring 10 clamps the inner and outer surfaces of the connecting assembly 18 along the longitudinal axis of the connecting end, as shown in Figure 10 and Figure 11 The connecting assembly 18 is clamped between the two opposite surfaces of the C-shaped clamp spring 10. The taking-out method of the C-shaped clamp spring is the same as that of the second embodiment, that is, a surgical instrument with pulling or pushing ability such as a taking-out hook or a sampling forceps is used to push or pull the C-shaped clamp spring 10, so that the C-shaped clamp spring 10 is separated from the ring structure, thereby separating the plurality of closure clip parts 1 originally engaged with each other by the clamping jaws 3, facilitating the surgeon to take out.

[0083] Embodiment Four

[0084] The connecting member in the embodiment is a sleeve 11 sleeved on the connecting assembly 18. Specifically, the sleeve 11 can be sleeved on the connecting end before the adjacent two connecting ends are connected, and after the connection of the connecting ends is completed, the sleeve 11 is moved to wrap the adjacent two connecting ends on the outside. As shown in Figure 12 and Figure 13 The sleeve 11 is a closed loop structure that completely wraps around the connecting assembly 18. When the medical closure clip needs to be taken out, the sleeve 11 is pushed to move on the circumference of the ring structure until the connecting assembly 18 is exposed, and the plug 5 is not limited by the sleeve 11, so that the ring structure can be popped open. The disengagement method of the plug 5 and the socket 6 in the embodiment is the same as that in the second embodiment.

[0085] The connecting members in the second to fourth embodiments can also be made of bioabsorbable medical materials, which can automatically disappear after a certain period of time, thereby releasing the restraint of the connecting assembly 18.

[0086] Embodiment Five

[0087] The connecting member in this embodiment is a second binding wire 12 connecting the plug 5 and the connecting end adjacent to the plug 5. The material of the second binding wire 12 is the same as that of the first binding wire 19, as shown in Figure 14 small holes can be provided on the plug 5 and the connecting end adjacent to the plug 5, and the two ends of the second binding wire 12 are tied on the two small holes, and the second binding wire 12 is located on the outer periphery of the plug 5, facilitating outward pulling. When the medical closure clip needs to be taken out, the second binding wire 12 is pulled by the taking-out hook, and the plug 5 can move outward under the pulling force of the second binding wire 12. At this time, the socket 6 can penetrate the closure clip part 1 in the thickness direction, or can only extend to the outer peripheral surface of the closure clip part 1.

[0088] In other alternative embodiments, the second binding wire 12 can be connected to the plug 5 and the connecting end adjacent to the plug 5 through a loose joint. When the second binding wire 12 is pulled, the loose joint of the second binding wire 12 is loosened. When the socket 6 penetrates the connecting end of the closure clip part 1 in the thickness direction, the plug 5 can be moved by the expansion force of the human tissue or the traction force from the taking-out hook or the sampling forceps or other surgical instruments with pulling capacity; when the socket 6 is a blind groove opened on the outer peripheral surface or the inner peripheral surface of the connecting end (i.e. not penetrating the peripheral wall of the closure clip part 1), the plug 5 or the socket 6 can be driven by the traction force from the taking-out hook or the sampling forceps or other surgical instruments with pulling capacity, so that the connection between the plug 5 and the socket 6 is invalid. Similarly, the second binding wire 12 can also be made of bioabsorbable medical materials.

[0089] Embodiment Six

[0090] The connecting assembly 18 in this embodiment has two connecting end surface lugs 13 protruding on both sides of the axial direction of the ring structure, and the connecting member is a third binding wire 14 connecting the opposite lugs 13 on the adjacent connecting ends. The material of the third binding wire 14 is the same as that of the first binding wire 19 and the second binding wire 12, as shown in Figure 15 The upper and lower lugs 13 are provided on the connecting end, and the lug 13 and the connecting end form a recessed winding part 17, and the third binding wire 14 is wound on the winding part 17 of the lug 13. The upper and lower two groups of lugs 13 are both wound with the third binding wire 14. The connecting assembly 18 in this embodiment can only rely on the third binding wire 14 for restraint, and the socket 6 and the plug 5 do not need to be buckled. As long as the plug 5 is inserted into the socket 6, when the medical closure clip is taken out, the third binding wire 14 is pulled by the taking-out hook, so that the third binding wire 14 is loosened (the two ends of the third binding wire 14 can be loose, and the pulling can be loosened), thereby releasing the restraint of the connecting assembly 18, and the ring structure is opened.

[0091] In other alternative embodiments, more than two closure clip parts 1 can be connected end to end to form a medical closure clip.

[0092] As shown in Figures 16-18As shown, the present application also provides a medical closure clip, which comprises at least two closure clip parts 1, each of which comprises a connecting end and a clamping end connected to each other, and the connecting end of each of the closure clip parts is sequentially connected to the tail end of the previous one to form a ring structure 15; the clamping end is provided with a clamping jaw 3, which can be engaged with each other in a natural state after the closure clip parts 1 are assembled into the medical closure clip; the clamping jaw 3 is made of shape memory material, and a cap 21 (a medical transparent mucosa suction cap) is a commonly used accessory for endoscopic treatment, which is widely used for assisting hemostasis treatment, foreign body removal, magnifying endoscopic examination, improving incision line position, and observing endoscopic imaging observation of difficult parts. Combined with Figure 7 Before actual surgery, the cap 21 (a medical transparent mucosa suction cap) is sleeved on the outer peripheral side of the front end of the lens of the endoscope, the medical closure clip is loaded on the cap 21, at this time the clamping jaw 3 is opened by the cap 21, and the medical closure clip can enter the human body cavity along with the endoscope, after the medical closure clip is released to the target tissue, due to the shape memory characteristic, the clamping jaw 3 will restore the original shape, so that the clamping jaws 3 of the plurality of closure clip parts 1 are engaged with each other, and the target tissue is clamped stably to achieve the purpose of closing the wound and stopping bleeding; the medical closure clip further comprises a connecting piece connecting the connecting ends of two adjacent closure clip parts, and the connecting piece can be separated from at least one of the connecting ends under the action of external force. The connecting piece is used to connect the two adjacent closure clip parts, so as to maintain the structure of the ring structure 15. In the present application, the connecting ends of the adjacent closure clip parts 1 can be connected by plane butt joint, for example, Figure 2 As shown, the connecting part of the adjacent closure clip parts 1 is a line.

[0093] When the medical closure clip needs to be removed, only the connecting piece is removed, and under the expansion of the human tissue or the action of slight pulling force in the surgical process, the medical closure clip can be disassembled into a plurality of separated closure clip parts, and the process of removing and taking out the medical closure clip will not cause pulling damage to the human tissue.

[0094] The following will describe two embodiments of the medical closure clip according to different connecting pieces:

[0095] Embodiment seven

[0096] As shown in Figure 16 , Figure 17 and Figure 18 , the present application provides a medical closure clip, which comprises two closure clip parts 1 connected end to end; the connecting ends of the two closure clip parts 1 form a ring structure 15, and the clamping ends of the two closure clip parts 1 are engaged with each other; the clamping jaw 3 is made of shape memory material, such as nickel-titanium alloy, and in a natural state, the two clamping jaws 3 engage and clamp the human tissue, and under the action of external force, the two clamping jaws 3 are opened; the natural state refers to a state without external force.

[0097] The connecting member in this embodiment is a holding ring 9 sleeved on the outer circumferential surface of the annular structure 15. The holding ring 9 is an annular structure wrapped around the annular outer circumferential surface of the annular structure 15, and is used to limit the outward expansion of the closure clip parts, so that the connecting ends of the closure clip parts remain in an arc shape. When it is necessary to take out the medical closure clip, after the endoscope enters the body cavity, a surgical instrument with pulling or pushing capability, such as a taking-out hook or a sampling forceps, is arranged in the endoscope channel hole to push or pull the holding ring 9, so that the holding ring 9 is separated from the annular structure 15, and then the two originally connected connecting ends of the medical closure clip are separated to release the clamping state, and finally the taking-out hook, the endoscope and the medical closure clip are taken out of the human body.

[0098] In this scheme, in addition to the fact that the clamping jaw 3 needs to be made into a sharp or sharp end surface in order to clamp the tissue to close the wound or stop bleeding, other structures will be rounded to reduce the harm to human tissue, avoiding the presence of sharp angles or end surfaces.

[0099] The holding ring 9 in this embodiment can also be made of a bioabsorbable medical material, which can automatically disappear after a certain period of time, thereby releasing the constraint of the holding ring 9.

[0100] Embodiment Eight

[0101] In this embodiment, two closure clip parts 1 are also composed of two closure clip parts 1, and each closure clip part 1 has two ears 13 protruding along the axial sides of the annular structure 15 at the two ends of the connecting end. The connecting member is a wire turn 20 connecting the corresponding ears 13 on the adjacent connecting ends. The wire turn 20 can be made of medical-grade PE suture, as shown in Figure 17 and Figure 18 The upper and lower ears 13 are provided above and below the connecting end, and a recessed winding part 17 is formed between the ear 13 and the connecting end. The wire turn 20 is wound on the ear 13 and located in the winding part 17. The two groups of upper and lower ears 13 are both wound with wire turns 20. When the medical closure clip is taken out, the wire turn 20 is pulled by the taking-out hook to loosen the wire turn 20 (the two ends of the wire turn 20 can be hinged and loosened by pulling), thereby releasing the constraint of the wire turn 20, and the annular structure 15 is opened. In addition, the wire turn 20 can also be made of a bioabsorbable medical material.

[0102] In this embodiment, the two ends of the two closure clip parts 1 are both provided with connecting members, which are respectively located at the left and right ears 13 as shown in Figure 18 When the medical closure clip is taken out, only one connecting member at one end can be removed, so that the adjacent closure clip part 1 is disconnected to cause the annular structure 15 to separate. At this time, the other end of the two closure clip parts 1 is still connected to each other, or both connecting members are removed, so that the medical closure clip is disassembled into two independent closure clip parts 1, and then the separated or one-end-connected closure clip parts 1 are taken out using the taking-out hook.

[0103] In other optional embodiments, more than two closed clamps can be used, and the two closed clamps are connected end to end.

[0104] In this specification, illustrative statements of the terminology are not necessarily referred to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments.

[0105] The above is the ideal embodiment according to the application, and the above description can be changed and modified by the relevant staff without deviating from the technical idea of the application. The technical scope of the application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A medical closure clip, characterized in that: The medical closure clip is assembled from at least two closure clip sections (1). Each closure clip section (1) includes a connecting end and a clamping end that are connected to each other. The connecting end is connected by a connecting component to form a ring structure. The clamping end is provided with a clamping claw (3). The clamping claw (3) is located at one end of the width direction of the ring structure. After the closure clip sections (1) are assembled into the medical closure clip, the clamping claw (3) can engage with each other in a natural state. The clamping claw (3) is made of shape memory material. The connection assembly (18) includes a socket (6) at the connection end of one of the closure clip portions (1) and a plug (5) at the connection end of the adjacent closure clip portion (1), the plug (5) being adapted to be inserted into the socket (6); The connection assembly (18) further includes a connector disposed between at least one set of two interconnected connection ends, wherein when the connector is separated from at least one of the connection ends, the plug (5) can be disengaged from the socket (6). The socket (6) extends to the outer circumference of the annular structure, and when the connector is released, the plug (5) can move outward and disengage from the socket (6).

2. The medical closure clip according to claim 1, characterized in that: The adjacent plugs (5) and sockets (6) are interlocked in the circumferential direction.

3. The medical closure clip according to claim 1 or 2, characterized in that: The connector includes a retaining ring (8) and a first binding wire (19). The retaining ring (8) is sleeved on the connecting end of the closing clamp section (1). The retaining ring (8) is a ring structure that can be circumferentially broken and deformed under external force. One end of the first binding wire (19) is connected to the retaining ring (8), and the other end of the first binding wire (19) is connected to the plug (5).

4. The medical closure clip according to claim 1 or 2, characterized in that: The connecting component is a retaining ring (9) sleeved on the outer circumference of the annular structure, or a C-shaped retaining ring (10) sleeved on the connecting assembly (18), or a sleeve (11) sleeved on the connecting assembly (18).

5. The medical closure clip according to claim 4, characterized in that: The connector is made of bio-absorbable medical material.

6. The medical closure clip according to claim 1 or 2, characterized in that: The connector is a connector plug (5) and a second binding wire (12) adjacent to the connector end of the plug (5).

7. The medical closure clip according to claim 1, characterized in that: The connecting assembly (18) has two lugs (13) protruding from the two connecting end surfaces along the axial sides of the annular structure, and the connector is a third binding wire (14) connecting the opposite lugs (13) on adjacent connecting ends.

8. The medical closure clip according to claim 7, characterized in that: A recessed winding portion (17) is formed between the lug (13) and the connecting end, and the third binding wire (14) is wound around the winding portion (17) of the lug (13).

9. The medical closure clip according to claim 3, characterized in that: The retaining ring (8) is a circumferentially open ring.

10. The medical closure clip according to claim 3, characterized in that: The retaining ring (8) is a closed ring structure. A weak connection area is provided on the retaining ring (8). The weak connection area can break circumferentially under the action of external force.

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