Conveying device and clamp equipment

Abstract

The invention discloses a conveying device and clamp equipment, and belongs to the field of medical instruments, a sheath assembly of the conveying device comprises a transition cap and a control ring arranged on the transition cap in a sleeving mode, a first protruding part of the control ring is arranged in a first guide groove of the transition cap, and at least part of a connecting assembly arranged on the transition cap is arranged in the first guide groove in a protruding mode. When the control ring moves on the transition cap, the first convex part can extrude the connecting assembly, so that the connecting assembly can move from a first position to a second position, in the first position, the connecting assembly can be connected with the clamping seat, and the second position is closer to the central axis O of the sheath assembly than the first position, so that the second position is closer to the radial inner side than the first position; when the connecting assembly is located at the second position, the connecting assembly can be separated from the clamping base. Therefore, the conveying device and the clamp assembly can be arranged to be two independent parts, the clamp assembly is disposable, the conveying device is reusable, and product cost is saved.

Description

Technical Field

[0001] The present application belongs to the field of medical device technology, and specifically relates to a delivery device and a clamp device. Background Art

[0002] Hemostatic clips are common surgical instruments used to control bleeding in many surgeries, such as gastrointestinal and respiratory surgeries. Hemostasis is achieved by inserting the clip into the body and then manipulating it to clamp onto a blood vessel or tissue. Currently, the clip assembly of the hemostatic clip is connected to the distal end of a delivery device, which delivers the clip assembly into the patient's body through an endoscopic channel. During surgery, the clip assembly lacks rotational stability relative to the delivery device, significantly increasing the difficulty of the surgical procedure. Summary of the Invention

[0003] Purpose of the invention: An embodiment of the present application provides a conveying device, aiming to solve the current technical problem of insufficient rotational stability of the clamp assembly relative to the conveying device; another purpose of an embodiment of the present application is to provide a clamp device.

[0004] Technical solution: A conveying device according to an embodiment of the present application is suitable for conveying a clamp assembly, wherein the clamp assembly includes a clamp seat; the conveying device includes:

[0005] The sheath assembly includes a transition cap and a control ring sleeved on the transition cap, wherein the transition cap has a first guide groove extending along its axial direction, and the control ring has a first protrusion disposed in the first guide groove;

[0006] a connecting assembly connected to the transition cap, wherein the connecting assembly is partially disposed in the first guide groove;

[0007] The control ring is configured to be able to move axially along the transition cap, so that the first protrusion squeezes the connecting assembly to move the connecting assembly from a first position to a second position closer to the central axis O of the sleeve assembly than the first position. In the first position, the connecting assembly can be connected to the clamp seat.

[0008] In some embodiments, the control ring is configured to be movable toward the proximal end of the sheath assembly so that the first protrusion presses the connecting assembly.

[0009] In some embodiments, the transition cap is provided with a first limiting step;

[0010] The sheath assembly further includes a reset elastic member sleeved on the transition cap. The reset elastic member is arranged on a side of the control ring close to the proximal end and between the first limiting step and the control ring.

[0011] In some embodiments, the transition cap further has a second guide groove extending along its axial direction, and the control ring further has a second protrusion, which is arranged through the second guide groove and partially arranged in the channel of the transition cap; the conveying device further includes:

[0012] A cable assembly is provided through the channel, and the cable assembly can move toward the proximal end of the sheath assembly and abut against the second protrusion to push the control ring to move toward the proximal end.

[0013] In some embodiments, there are multiple first guide grooves and / or second guide grooves, and the second guide grooves and the first guide grooves are arranged along the circumference of the transition cap.

[0014] In some embodiments, the number of the first protrusions is consistent with the number of the first guide grooves, and each first protrusion corresponds to one first guide groove;

[0015] The number of the second protrusions is consistent with the number of the second guide grooves, and each second protrusion is provided corresponding to one second guide groove.

[0016] In some embodiments, the cable assembly includes a cable body and a coupling head connected to each other, and the cable body is configured to drive the coupling head to move along the sheath assembly;

[0017] When the cable body drives the coupling head to move toward the distal end of the sheath assembly, the coupling head can be connected to the clamp of the clamp assembly;

[0018] When the cable body drives the coupling head to move toward the proximal end of the sheath assembly, the coupling head can abut against the second protrusion to push the control ring to move toward the proximal end.

[0019] In some embodiments, the bond head comprises:

[0020] a cone head configured to be inserted into a clamp of the clamp assembly;

[0021] a convex ridge portion, spaced apart from the cone head, wherein the convex ridge portion is capable of abutting against the second convex portion when moving toward the proximal end;

[0022] a connecting portion connected between the convex ridge portion and the cone head;

[0023] When the cone head is inserted into the clamp, at least a portion of the clamp is located between the cone head and the ridge portion and is in contact with the joint portion.

[0024] In some embodiments, the connecting assembly includes an elastic portion and a tongue portion connected to each other, the elastic portion is disposed in the channel of the transition cap and partially disposed in the first guide groove, and the first protrusion squeezes the elastic portion to move the connecting assembly from the first position to the second position;

[0025] In the first position, the tongue portion protrudes from the transition cap and is connectable to the clamp seat, and a first distance exists between the tongue portion and the central axis O;

[0026] In the second position, the tongue portion has a second distance from the central axis O, and the second distance is smaller than the first distance.

[0027] In some embodiments, the elastic portion includes an arched section and an extension section, the arched section is disposed in the first guide groove, and the extension section is disposed in the channel and connects the arched section and the tongue portion;

[0028] The first protrusion is capable of compressing the arched section to move the connecting assembly from the first position to the second position.

[0029] In some embodiments, the transition cap further has a lateral hole. In the first position, the tongue portion passes through the lateral hole and protrudes out of the transition cap so as to be connectable with the clamp seat.

[0030] In some embodiments, the tongue portion is provided with a shoulder, which is located in the channel of the transition cap. In the first position, the shoulder abuts against the edge of the lateral hole to limit the size of the tongue portion protruding outside the transition cap.

[0031] In some embodiments, the elastic portion has a fixed end and a movable end that are relatively arranged, the fixed end is fixed on the transition cap, the tongue portion is connected to the movable end, and extends from the movable end toward the lateral hole. The elastic portion can produce elastic deformation when squeezed, so that the movable end drives the tongue portion to move.

[0032] In some embodiments, the sheath assembly further has an assembly hole, and the connecting assembly further includes a bending portion, the bending portion is connected to the fixed end, the bending portion is arranged in the assembly hole, and abuts against the hole wall of the assembly hole.

[0033] In some embodiments, the transition cap has a plurality of the assembly holes arranged along its circumference, the conveying device includes a plurality of the connecting components, and the bending portion of each of the connecting components is arranged in one of the assembly holes.

[0034] Accordingly, a clamp device according to an embodiment of the present application includes:

[0035] The delivery device as described in any of the above embodiments, and

[0036] The clamp assembly, the conveying device is used to convey the clamp assembly, the clamp assembly and the conveying device are arranged as split structures, the clamp assembly includes a clamp and a clamp seat that accommodates at least part of the clamp, the clamp is arranged to be connected to the cable assembly of the conveying device, and the clamp seat is arranged to be connected to the connecting assembly of the conveying device.

[0037] In some embodiments, the clamp includes a clip element and a buckle connected to each other, the buckle includes at least two holding units arranged around its axis M, and the holding unit has a holding portion at one end away from the clip element;

[0038] The coupling head of the cable assembly can be inserted between the at least two holding units, and the holding portion is used to limit the coupling head so that the coupling head is connected to the buckle.

[0039] In some embodiments, the internal space of the clamp seat has a first section and a second section arranged sequentially along its axial direction, the first section is located on a side of the second section away from the clip element, and a radial dimension R of the first section is greater than a radial dimension r of the second section;

[0040] When the holding portion is located in the first section, the holding portions of the at least two holding units can be moved away from each other by the squeezing force of the bonding head;

[0041] When the holding portion is located in the second section, the inner circumferential surface of the clamping seat can contact the holding unit to prevent the holding portions of the at least two holding units from moving away from each other.

[0042] In some embodiments, a receiving groove is formed between the at least two holding units, and the coupling head can be inserted into the receiving groove; the holding portion is arranged at the notch of the receiving groove and protrudes radially inward.

[0043] In some embodiments, the buckle further comprises a hinged seat hinged to the clip element, and the retaining unit is provided on a side of the hinged seat away from the clip element;

[0044] The holding unit further includes a first holding arm and a second holding arm respectively connected to the hinge seat. The holding portion is arranged on a side of the first holding arm and the second holding arm away from the hinge seat, and connects the first holding arm and the second holding arm.

[0045] In some embodiments, when the bonding head is inserted between the at least two holding units, the holding portion is located between the cone head and the ridge portion of the bonding head and fits in with the bonding portion.

[0046] In some embodiments, the bonding head is capable of driving the clip assembly to rotate relative to the connecting assembly.

[0047] In some embodiments, the buckle is configured as an elastic structure.

[0048] In some embodiments, the clip element includes a first clip and a second clip hinged to the buckle, and the first clip and the second clip are both provided with a slide groove; a pin is provided in the clip seat, and the pin is inserted into the slide groove;

[0049] The slide groove is provided with an open position, a closed position, and a locked position. The cable assembly drives the clip element to move via the pull buckle, so that the pin shaft can reciprocate between the open position and the closed position. In the open position, the first clip and the second clip are open, and in the closed position, the first clip and the second clip are closed.

[0050] The locking position is located on the side of the closed position away from the open position, a first protrusion is provided in the sliding groove of the first clip, and a second protrusion opposite to the first protrusion is provided in the sliding groove of the second clip, and the first protrusion and the second protrusion are located between the locking position and the closed position; the cable assembly drives the clip element toward the proximal end through the buckle, so that the pin shaft squeezes the first protrusion and the second protrusion and moves to the locking position, and in the locking position, the first clip and the second clip are locked.

[0051] In some embodiments, the first clip is provided with a first avoidance notch, and the second clip is provided with a second avoidance notch. The pin shaft squeezes the first protrusion and the second protrusion, so that the first protrusion can be deformed toward the first avoidance notch and the second protrusion can be deformed toward the second avoidance notch.

[0052] Beneficial effects: The conveying device provided in the embodiment of the present application is suitable for conveying a clamp assembly, and the clamp assembly includes a clamp seat; the conveying device includes: a sheath assembly, including a transition cap and a control ring sleeved on the transition cap, the transition cap has a first guide groove extending along its axial direction, the control ring is provided with a first convex portion, and the first convex portion is arranged in the first guide groove; a connecting assembly is arranged on the transition cap, and at least partially protrudes from the first guide groove; the control ring is arranged to be able to move along the axial direction of the transition cap, so that the first convex portion squeezes the connecting assembly, so that the connecting assembly moves from the first position to a second position closer to the central axis O of the sheath assembly than the first position, and in the first position, the connecting assembly can be connected to the clamp seat. In an embodiment of the present application, the sheath assembly of the delivery device includes a transition cap and a control ring mounted on the transition cap, wherein the first protrusion of the control ring is disposed in a first guide groove of the transition cap, and at least a portion of the connecting assembly disposed on the transition cap is protruded in the first guide groove, so that when the control ring moves on the transition cap, the first protrusion can squeeze the connecting assembly, so that the connecting assembly can move from a first position to a second position. In the first position, the connecting assembly can be connected to the clamp seat. The second position is closer to the central axis O of the sheath assembly than the first position, and thus is radially inward compared to the first position. When the connecting assembly is in the second position, it can be disengaged from the clamp seat. Therefore, the delivery device can be connected to and separated from the clamp assembly, and the delivery device and the clamp assembly can be configured as two independent parts, wherein the clamp assembly is disposable and the delivery device is reusable. In actual clinical use, it is only necessary to continuously replace the clamp assembly according to actual conditions, thereby greatly saving product costs. Furthermore, because the delivery device and clip assembly are independent of each other, if the clip assembly is damaged during use, only the clip assembly needs to be replaced, rather than the entire device. This significantly improves efficiency and reduces medical costs. Furthermore, during transportation and storage, the two devices can be packaged and stored separately, saving space and reducing transportation and storage costs.

[0053] The clamp device of the embodiment of the present application can have all the technical features and technical effects of the above-mentioned conveying device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 A schematic structural diagram of a clamp assembly and a conveying device in a clamp device provided in one embodiment of the present application;

[0056] Figure 2A schematic diagram of a partial structure of a conveying device and a clamp seat of a clamp assembly in a connected state according to an embodiment of the present application;

[0057] Figure 3 A schematic diagram of a partial structure of a conveying device provided in one embodiment of the present application;

[0058] Figure 4 A schematic structural diagram of a transition cap in a conveying device provided in one embodiment of the present application;

[0059] Figure 5 A schematic structural diagram of a control ring in a conveying device provided in one embodiment of the present application;

[0060] Figure 6 A schematic structural diagram of a connecting assembly in a conveying device provided in one embodiment of the present application;

[0061] Figure 7 for Figure 3 Schematic diagram of the partial structure of the middle conveying device after removing the reset elastic member;

[0062] Figure 8 A schematic diagram of the partial structure of a cable assembly in a conveying device provided in one embodiment of the present application;

[0063] Figure 9 A top view of the local structure of the conveying device and the clamp seat of the clamp assembly in a connected state according to an embodiment of the present application;

[0064] Figure 10 for Figure 9 Schematic cross-sectional view of the middle structure along line BB;

[0065] Figure 11 The conveying device provided in one embodiment of the present application is along Figure 9 Schematic diagram of partial cross-section along line BB;

[0066] Figure 12 A side view of a partial structure of a conveying device provided in one embodiment of the present application;

[0067] Figure 13 A side view of the partial structure of the delivery device and the clamp seat of the clamp assembly in a connected state according to one embodiment of the present application;

[0068] Figure 14 for Figure 13 Schematic cross-sectional view of the middle structure along line CC;

[0069] Figure 15 The conveying device provided in one embodiment of the present application is along Figure 13 Schematic diagram of partial cross-section of CC line;

[0070] Figure 16This is one of the partial cross-sectional schematic diagrams of the cable assembly in the delivery device provided by one embodiment of the present application during the process of moving toward the proximal end;

[0071] Figure 17 This is a second partial cross-sectional schematic diagram of the cable assembly in the delivery device provided by one embodiment of the present application during the process of moving toward the proximal end;

[0072] Figure 18 A schematic structural diagram of a connecting assembly in a conveying device provided in another embodiment of the present application;

[0073] Figure 19 A schematic diagram of a partial structure of a delivery device provided by another embodiment of the present application as viewed from a remote end;

[0074] Figure 20 A schematic structural diagram of a clamp assembly in a clamp device provided in an embodiment of the present application;

[0075] Figure 21 for Figure 20 Schematic diagram of the cross-section of the middle structure along line AA;

[0076] Figure 22 A schematic diagram of a buckle structure of a clip assembly in a clip device provided in one embodiment of the present application;

[0077] Figure 23 A schematic structural diagram of a clamp assembly in a clamp device provided in another embodiment of the present application;

[0078] Figure 24 A schematic diagram of the connection structure between a cable assembly and a buckle in a clamp device provided in another embodiment of the present application;

[0079] Figure 25 for Figure 24 A schematic side view of the middle cable assembly and the buckle connection structure;

[0080] Figure 26 for Figure 25 Schematic cross-sectional view of the connecting structure along line FF;

[0081] Figure 27 For the Figure 25 Another cross-sectional structural diagram of the FF line;

[0082] Figure 28 For the Figure 25 Schematic diagram of the third cross-sectional structure of the FF line;

[0083] Figure 29 For the Figure 25 Schematic diagram of the fourth cross-sectional structure of the FF line;

[0084] Figure 30 For the Figure 25Schematic diagram of the fifth cross-sectional structure of the FF line;

[0085] Figure 31 This is a schematic diagram of the protective shell structure of the clip device in the embodiment of the present application;

[0086] Figure 32 This is a schematic diagram of the exploded structure of the protective shell of the clip device in the embodiment of the present application;

[0087] Explanation of reference numerals: 100 - delivery device; 110 - sheath assembly; 111 - sheath body; 112 - transition cap; 1121 - side wall; 1123 - first guide groove; 1124 - second guide groove; 1125 - first limiting step; 113 - channel; 114 - lateral hole; 115 - proximal end; 116 - distal end; 117 - assembly hole; 1171 - hole wall; 118 - reset elastic member; 119 - control ring; 1191 - First protrusion; 1192 - second protrusion; 120 - connecting assembly; 121 - elastic portion; 1211 - fixed end; 1212 - movable end; 1213 - extension section; 1214 - arched section; 122 - tongue section; 1221 - shoulder; 123 - bent section; 130 - cable assembly; 131 - cable body; 132 - coupling head; 1321 - cone head; 1322 - coupling section; 1323 - ridge section; 1324 - extension section ;1325-connecting portion;140-handle mechanism;200-clip assembly;210-clamp;211-clip element;211a-first clip;211b-second clip;212-pull buckle;2121-outer peripheral surface;2122-accommodating groove;2123-notch;213-holding unit;2131-holding portion;2132-first holding arm;2133-second holding arm;217-hinge seat;214-slide groove; 215a-first protrusion; 215b-second protrusion; 216a-first avoidance gap; 216b-second avoidance gap; 220-clamp seat; 221-inner circumference; 222-limiting groove; 223-first section; 224-second section; 225-pin shaft; 300-protective shell; 310-shell assembly; 311-receiving groove; 312-assembly groove; 320-positioning assembly; 321-first positioning portion; 322-second positioning portion. DETAILED DESCRIPTION

[0088] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0089] In the description of this application, it should be understood that the terms "proximal end" and "distal end" are used as reference objects by the operator (doctor), wherein the "proximal end" is the end closer to the operator, and the "distal end" is the end farther away from the operator relative to the "proximal end", that is, the end closer to the patient. The orientation or positional relationship indicated by the terms "upper", "lower", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. "Multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two devices or the interaction relationship between two devices, unless otherwise clearly and specifically defined. The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0090] As an introduction to the present application, a clamp device is first introduced. The clamp device consists of a clamp assembly and a conveying device. The clamp assembly is connected to the distal end of the conveying device. The two parts are a whole and disposable. Although this design is simple and convenient, in actual use, since both the clamp assembly and the conveying device are disposable, the cost is relatively high, which is not conducive to large-scale use of the product. In addition, since the clamp assembly and the conveying device are integrated, if the clamp assembly is damaged during use, the entire clamp device needs to be replaced, which undoubtedly increases medical costs. Furthermore, since the clamp assembly and the conveying device are integrated, a large space is required during transportation and storage, which also increases the cost of transportation and storage. In addition, this clamp device is not flexible in rotation, and it is relatively difficult for doctors to control it during surgery.

[0091] In addition, the current solutions for assembled hemostatic clips also have many problems, such as patent CN100475165C, which has several problems:

[0092] 1) In this technology, during the assembly of the clip assembly, the protective shell needs to be pressed manually to secure the delivery device and the clip assembly, and then the connector is pushed to complete the assembly. This method is relatively complicated to operate, especially in the tense clinical surgical environment, making it more difficult to operate and increasing the difficulty of assembly;

[0093] 2) The clip in this solution cannot be opened and closed repeatedly (because there is no spring to connect the delivery device and the clip assembly in this solution), which will greatly increase the difficulty and inconvenience of the operation in actual use.

[0094] 3) The clip in this solution cannot be rotated, which will greatly increase the difficulty of the operation and reduce the efficiency of the operation in actual use.

[0095] 4) When replacing the second clip assembly, the remaining clip assembly remains at the front end of the connector, so it needs to be manually removed. Only after this removal can the next clip assembly be assembled, which increases the difficulty of assembly and reduces surgical efficiency.

[0096] In addition, as shown in patent CN103989500B, this solution has several problems:

[0097] 1) The clip assembly is not reloadable, which, in the current context of environmental protection, is inconsistent with the concept of sustainable development. In particular, the EU's PPWR regulations aim to reduce packaging waste and promote the recycling and reuse of packaging materials. Therefore, if the solution described in CN103989500B is used, the remaining delivery device will be discarded after the clip assembly is used. This is not only unsustainable but also increases the burden on patients.

[0098] In view of this, the conveying device 100 and the clamp device having the conveying device 100 provided in the embodiment of the present application are intended to solve the above-mentioned technical problems.

[0099] Figure 1 The clamp device provided by the embodiment of the present application is shown, and the clamp device includes a delivery device 100 and a clamp assembly 200, and Figure 1 In the illustrated clip apparatus, the delivery device 100 and the clip assembly 200 are in an assembled state where they are connected together.

[0100] Please combine Figure 2 and Figure 3 In the embodiment of the present application, the conveying device 100 and the clamp assembly 200 can be set as a split structure, that is, the conveying device 100 and the clamp assembly 200 are set as two relatively independent parts, which can be transported and stored separately. When it is needed, the conveying device 100 can be operated to connect it with the clamp assembly 200. Figure 2 The structure shown. Then, the delivery device 100 can be used to deliver the clip assembly 200 into the patient's body through the endoscope channel, and then the delivery device 100 can be operated to control the clip assembly 200 to complete the opening, clamping, locking and releasing actions. After the clip assembly 200 is released, Figure 3The transport device 100 shown can be connected to another clamp assembly 200 in the same manner to achieve repeated use and reduce the cost of use. Setting the two as a split structure also solves the problem of needing to replace the entire clamp device when the clamp assembly 200 is damaged. By setting the clamp assembly 200 and the transport device 100 as two independent parts, only the clamp assembly 200 can be replaced when the clamp assembly 200 is damaged, without replacing the entire clamp device, thereby reducing medical costs. Furthermore, it also solves the problem that the clamp assembly 200 and the transport device 100 are integrated, resulting in a large space being occupied during transportation and storage. By setting the clamp assembly 200 and the transport device 100 as two independent parts, they can be transported and stored separately, thereby reducing the cost of transportation and storage.

[0101] In one embodiment of the present application, the delivery device 100 includes a sheath assembly 110 ( Figure 3 The structure shown includes a sheath component 110), a connecting component 120 ( Figure 3 、 Figure 6 、 Figure 7 The structure shown includes a connecting assembly 120), a cable assembly 130 ( Figure 3 、 Figure 7 and Figure 8 The structure shown includes a cable assembly 130) and a handle mechanism 140 ( Figure 1 The illustrated structure includes a handle mechanism 140).

[0102] Please combine Figure 1 As shown, one end of the sheath assembly 110 is its proximal end 115, and the other end is its distal end 116. The proximal end 115 is connected to the handle mechanism 140, and the distal end 116 is used to assemble the clip assembly 200. During use, the doctor holds the handle mechanism 140 and can use the sheath assembly 110 to deliver the clip assembly 200 assembled at its distal end 116 into the patient's body along the endoscope channel.

[0103] The sheath assembly 110 has an internal passageway, which is a cavity formed within the sheath assembly 110 and extends through the proximal end 115 and distal end 116 of the sheath assembly 110, giving the sheath assembly 110 a generally tubular structure. This internal passageway is used to pass a cable assembly 130. The cable assembly 130 is connected to a handle mechanism 140 and is disposed within the passageway 113 and is movable along the passageway 113 to penetrate the sheath assembly 110. During use, a surgeon manipulates the internal passageway of the handle mechanism to drive the cable assembly 130 along the passageway 113, causing it to connect with the clamp 210 of the clip assembly 200, allowing the clamp 210 to be manipulated to perform surgical actions such as opening, clamping, and locking, and to release the clip assembly 200.

[0104] like Figure 3As shown in the embodiment of the present application, the sheath assembly 110 includes a transition cap 112 and a control ring 119 sleeved on the transition cap 112. Figure 4 As shown, the channel 113 passes through the transition cap 112 and is used to pass the cable assembly 130. One end of the transition cap 112 is the distal end 116 of the sheath assembly 110, and when assembled with the clamp assembly 200, the distal end 116 of the sheath assembly 110 faces the clamp seat 220 or can be inserted into the clamp seat 220. Figure 4 As shown, the transition cap 112 has a first guide groove 1123 extending along its axial direction and communicating with the channel 113. Figure 5 As shown, the control ring 119 is provided with a first convex portion 1191. Specifically, the first convex portion 1191 is provided on the inner side of the control ring 119 and extends radially inward. Figure 7 As shown, the first protrusion 1191 is disposed in the first guide groove 1123. The control ring 119 is configured to move axially along the transition cap 112, thereby driving the first protrusion 1191 to move along the first guide groove 1123. In some embodiments, the physician can manually manipulate the control ring 119 to move axially on the transition cap 112. Alternatively, in some embodiments, the physician can manipulate the handle mechanism 140 to drive the control ring 119 to move by moving the cable assembly 130 (described in detail below).

[0105] like Figure 3 As shown, in some embodiments, the jacket assembly 110 further includes a jacket body 111 connected to a transition cap 112. Figure 1 The end of the transition cap 112 away from the sheath body 111 is the distal end 116 of the sheath assembly 110. The sheath body 111 can be an elastic tube, i.e., a tubular structure formed by spirally winding a metal wire. One end of the sheath is connected to the handle mechanism 140, and the end connected to the handle mechanism 140 corresponds to the proximal end 115. The other end is connected to the transition cap 112, which can be made of metal or medical plastic.

[0106] In the embodiment of the present application, the connecting assembly 120 is disposed on the transition cap 112 and at least partially protrudes into the first guide groove 1123. Figure 3 、 Figure 6 and Figure 7 The connecting assembly 120 is mounted on the transition cap 112, with part of its structure located in the channel 113 in the transition cap 112, and the other part of its structure arching out into the first guide groove 1123. Figure 6 As shown, a partial structure of the connecting assembly 120 is an arched arched section 1214 . The arched section 1214 is bent and arched radially outward from the channel 113 and enters the first guide groove 1123 .

[0107] like Figure 7 As shown, when the control ring 119 moves along the axial direction of the transition cap 112, it can drive the first protrusion 1191 provided on the inner side to move along the first guide groove 1123, so that the first protrusion 1191 can squeeze the arched section 1214 of the connecting component 120 located in the first guide groove 1123. When the first protrusion 1191 squeezes the arched section 1214 of the connecting component 120, the connecting component 120 can be freely moved. Figure 11 The first position shown is moved to Figure 17 The second position shown. The connecting assembly 120 is closer to the central axis O of the sheath assembly 110 in the second position than in the first position. When the connecting assembly 120 is in the first position, its tongue portion 122 partially protrudes out of the transition cap 112 and can be connected to the clamp seat 220. When the connecting assembly 120 is in the second position, the portion of the structure connected to the clamp seat 220 is closer to the radially inner central axis O than in the first position and can be separated from the clamp seat 220. Specifically, please refer to Figure 10 The inner circumference 221 of the clamp seat 220 is provided with a limiting groove 222, and the connecting component 120 includes a tongue portion 122. When in the first position, the tongue portion 122 protrudes from the outside of the transition cap 112 and can be embedded in the limiting groove 222 to achieve connection with the clamp seat 220; when in the second position, the tongue portion 122 retracts to a position closer to the central axis O, and can be disengaged from the limiting groove 222, thereby achieving disengagement from the clamp seat 220.

[0108] In some embodiments, the control ring 119 is configured to be movable toward the proximal end 115 of the sheath assembly 110 so that the first protrusion 1191 compresses the connecting assembly 120. Figure 7 、 Figure 10 and Figure 11 As shown, the arched section 1214 of the connecting component 120 in the first guide groove 1123 is located on the side of the control ring 119 close to the proximal end 115. When the control ring 119 moves toward the side where the proximal end 115 is located, the first protrusion 1191 can squeeze the arched section 1214 of the connecting component 120 in the first guide groove 1123, and apply a radial squeezing force toward the central axis O to the arched section 1214, so that the connecting component 120 can be automatically Figure 11 The first position shown is moved to Figure 17 The second position is shown.

[0109] Please refer again Figure 3In some embodiments, the sheath assembly 110 further includes a resilient member 118 disposed on the transition cap 112. The resilient member 118 is disposed on the side of the control ring 119 near the proximal end 115. One end of the resilient member 118 is configured to abut against the control ring 119, while the other end is configured to abut against the transition cap 112. Optionally, the two ends of the resilient member 118 may be fixedly connected to the control ring 119 and the transition cap 112, respectively, or may be movably connected, for example, to contact and connect the control ring 119 and the transition cap 112. The provision of the resilient member 118 allows the control ring 119 to be reset by utilizing its elastic recovery capability. Specifically, when the external force applied to the control ring 119 toward the proximal end 115 is stopped, the control ring 119 can move toward the distal end 116 under the elastic force of the resilient member 118, thereby returning the connecting assembly 120 to its first position. This facilitates connection to the clamping base 220 and reduces connection difficulty. Optionally, the resetting elastic member 118 may be an elastic structure with appropriate elastic force, such as a spring.

[0110] like Figure 4 and Figure 7 As shown, in some embodiments, the transition cap 112 is provided with a first limiting step 1125, and the resetting elastic member 118 is disposed between the first limiting step 1125 and the control ring 119. When the control ring 119 moves toward the proximal end 115, it can squeeze the resetting elastic member 118, causing it to elastically deform. The resulting elastic restoring force can squeeze the transition cap 112 and the control ring 119, respectively, causing the control ring 119 to move toward the distal end 116 and return to its initial position, thereby restoring the connecting assembly 120 to the first position. Providing the first limiting step 1125 on the transition cap 112 also facilitates processing and assembly.

[0111] In some embodiments, as Figure 4 As shown, the transition cap 112 is further provided with a second guide groove 1124 extending along its axial direction, and the second guide groove 1124 and the first guide groove 1123 are arranged in the circumferential direction of the transition cap 112. Figure 5 As shown, the control ring 119 is further provided with a second protrusion 1192, which is passed through the second guide groove 1124 and the channel 113 of the transition cap 112. Figure 15 and Figure 16 As shown, during the process of the cable assembly 130 of the conveying device 100 moving along the sheath assembly 110 toward its proximal end 115, the ridge portion 1323 of the coupling head 132 in the cable assembly 130 can abut against the second protrusion 1192 to push the control ring 119 toward the proximal end 115, so that the first protrusion 1191 of the control ring 119 can squeeze the arched section 1214 of the connecting assembly 120, so that the connecting assembly 120 moves to the second position.

[0112] In some embodiments, the first guide groove 1123 and the second guide groove 1124 are both plural in number, and the second guide groove 1124 and the first guide groove 1123 are arranged along the circumference of the transition cap 112. Accordingly, the first protrusion 1191 and the first guide groove 1123 are both plural in number and correspond one to one; and the second protrusion 1192 and the second guide groove 1124 are both plural in number and correspond one to one.

[0113] In some embodiments, the first protrusions 1191 and the second protrusions 1192 are alternately arranged along the circumference, and the first guide grooves 1123 and the second guide grooves 1124 are alternately arranged along the circumference. This arrangement can improve the stability of the movement of each component and thus ensure the stability of operation.

[0114] During the assembly process of connecting and assembling the delivery device 100 and the clamp assembly 200, the handle mechanism 140 first drives the cable assembly 130 toward the proximal end 115. The cable assembly 130 then pushes the second protrusion 1192, causing the control ring 119 to move toward the proximal end 115. This in turn causes the first protrusion 1191 to squeeze the connecting assembly 120, moving the connecting assembly 120 to the second position. The distal end 116 of the sheath assembly 110 is then inserted into the clamp seat 220. The handle mechanism 140 then drives the cable assembly 130 toward the proximal end 115. The control ring 119 resets, releasing the connecting assembly 120 and returning the connecting assembly 120 to its initial first position, where it then engages with the retaining groove 222 of the clamp seat 220, thereby connecting the sheath assembly 110 and the clamp seat 220. As the cable assembly 130 moves toward the proximal end 115, it also engages with the tab 212 of the clamp 210, completing the assembly. In this way, the connection between the sheath assembly 110 and the clamp seat 220, and the cable assembly 130 and the clamp 210 can be completed by synchronous operation, thereby simplifying operation. The handle mechanism 140 drives the cable assembly 130 to open and close the clamp 210, and the cable assembly 130 is driven toward the proximal end 115 to release the clamp assembly 200, greatly reducing the difficulty of operation.

[0115] In some embodiments, as Figure 8 and Figure 11 As shown, the cable assembly 130 includes a cable body 131 and a coupling head 132 connected to each other. The cable body 131 is configured to drive the coupling head 132 to move along the sheath assembly 110. Figure 9 and Figure 10 When the cable body 131 drives the coupling head 132 to move toward the distal end 116 of the sheath assembly 110, the coupling head 132 can be connected to the clamp 210 of the clamp assembly 200 to control the opening, closing, locking and other actions of the clamp 210. Figures 12 to 17, when the cable body 131 drives the coupling head 132 to move toward the proximal end 115 of the sheath assembly 110, as shown in FIG. Figure 16 The ridge portion 1323 of the bonding head 132 can abut against the second protrusion 1192 to push the control ring 119 toward the proximal end 115 .

[0116] One end of the cable body 131 can be connected to the handle mechanism 140, and the coupling head 132 is connected to the other end of the cable body 131. The coupling head 132 is provided with a structure for mating with the clamp 210 of the clamp assembly 200.

[0117] Specifically, the coupling head 132 can be a one-piece structure comprising a tapered head 1321, a coupling portion 1322, a ridge 1323, an extension 1324, and a connecting portion 1325, which are sequentially connected. The tapered head 1321 is conical, similar to a bullet head, and can be inserted into the clamp 210 of the clamp assembly 200. The ridge 1323 is spaced apart from the tapered head 1321. When the ridge 1323 moves toward the proximal end 115, it can abut the second protrusion 1192. The coupling portion 1322 is connected between the ridge 1323 and the tapered head 1321. The cross-section of the coupling portion 1322, perpendicular to the axial direction of the cable assembly 130, is non-circular. When the tapered head 1321 is inserted into the clamp 210, at least a portion of the clamp 210 is located between the tapered head 1321 and the ridge 1323, and abuts against the coupling portion 1322. The non-circular shape of coupling portion 1322 allows for smooth torque transfer with clamp 210, enabling smooth rotation of clamp assembly 200 and facilitating operation. Extension portion 1324 is configured to an appropriate length as needed, with the maximum radial dimension of ridge portion 1323 being larger than that of extension portion 1324. Connecting portion 1325 is used to connect to cable body 131. In some embodiments, the cross-section of coupling portion 1322 perpendicular to the axial direction of cable assembly 130 may also be circular.

[0118] By manipulating the handle mechanism 140, the cable body 131 is moved toward the proximal end 115, which enables the connecting assembly 120 to move to the second position. Then, the distal end 116 of the sheath assembly 110 is inserted into the clamp seat 220. The cable body 131 is driven to move toward the distal end 116 by the handle mechanism 140, so that the connecting assembly 120 is reset to the first position and connected to the clamp seat 220. The coupling head 132 is continued to be driven to move, so that it extends into the clamp seat 220 and connects with the clamp 210. In this way, by manipulating the handle mechanism to drive the cable body 131 to move, it is possible to control the clamp 210 to complete actions such as opening, clamping, and locking, and also to release the clamp assembly 200. The cone head 1321 provided at the front end of the coupling head 132 is embedded in the receiving groove 2122 provided at the tail end of the buckle 212 of the clamp 210 to achieve mutual engagement and connection. The coupling portion 1322 can realize the transmission of torque, and then the operator can operate the clamp assembly 200 to rotate.

[0119] Please refer again Figure 6 In some embodiments, the connecting assembly 120 includes a connected elastic portion 121 and a tab portion 122. The elastic portion 121 is disposed within the transition cap 112 and at least partially protrudes from the first guide groove 1123. The first protrusion 1191 compresses the elastic portion 121, causing elastic deformation, thereby moving the connecting assembly 120 from the first position to the second position. In the first position, the tab portion 122 protrudes outside the transition cap 112 and is capable of connecting with the clamping base 220.

[0120] Optionally, the elastic portion 121 may be an elastic spring structure, and may be made of medical metal material or other medical elastic materials.

[0121] Optionally, the elastic portion 121 and the tongue portion 122 may be an integral structure, formed by integrally bending an elastic material.

[0122] Specifically, the elastic portion 121 includes an arched section 1214 and an extension section 1213. The arched section 1214 is arranged in the first guide groove 1123, and the extension section 1213 is arranged in the channel 113 of the transition cap 112, and connects the arched section 1214 and the tongue portion 122; the first protrusion 1191 can squeeze the arched section 1214 to move the connecting assembly 120 from the first position to the second position.

[0123] Please combine Figure 3 、 Figure 4 、 Figure 7 、 Figures 10 to 12In some embodiments, the transition cap 112 further has a lateral hole 114. In a first position, the tongue portion 122 extends through the lateral hole 114 and protrudes out of the transition cap 112 to enable connection with the clamping seat 220. The lateral hole 114 communicates with the channel 113 and is formed on a side wall 1121 of the transition cap 112. The lateral hole 114 extends through the side wall 1121 of the transition cap 112. Optionally, the lateral hole 114 can extend generally along the radial direction of the transition cap 112, or can be extended at a desired angle. The tongue portion 122 of the connecting assembly 120 is bent and extended from the elastic portion 121 toward the lateral hole 114. In the first position, the tongue portion 122 passes through the lateral hole 114 and protrudes from the transition cap 112. In the second position, the tongue portion 122 can be completely retracted to the inside of the lateral hole 114, or partially protruded from the lateral hole 114, as long as it can be disengaged from the limiting groove 222 of the clamp seat 220.

[0124] like Figure 8 As shown, in another embodiment, the tongue portion 122 is further provided with a shoulder 1221, as shown in FIG. Figure 19 In the first position, the shoulder 1221 is located inside the transition cap 112 and abuts against the edge of the lateral hole 114 to limit the size of the tongue portion 122 protruding from the transition cap 112. Specifically, in the first position, the shoulder 1221 abuts against the side wall 1121 at the edge of the lateral hole 114, thereby limiting the size of the tongue portion 122 protruding from the outside of the lateral hole 114, thereby limiting the depth of the tongue portion 122 embedded in the limiting groove 222 (as shown in FIG. Figure 10 ), so that there is a gap between the front end of the tongue portion 122 and the bottom wall 2221 of the limiting groove 222, reducing the possibility of the tongue portion 122 abutting against the bottom wall 2221 of the limiting groove 222, reducing the friction between the two, so that when the clamp assembly 200 and the conveying device 100 are connected, the rotation reliability is greatly improved, which can effectively reduce the difficulty of surgical operation.

[0125] It will be appreciated that when the connecting assembly 120 is in the first position, its tongue portion 122 can protrude from the lateral hole 114 outside the sheath assembly 110. When the distal end 116 of the sheath assembly 110 is inserted into the clamp seat 220 of the clamp assembly 200, the portion of the tongue portion 122 extending outside the sheath assembly 110 can be inserted into the retaining groove 222, thereby achieving connection between the delivery device 100 and the clamp assembly 200. Furthermore, the shoulder 1221 on the tongue portion 122 can abut against the peripheral edge of the lateral hole 114, preventing the tongue portion 122 from moving further out of the sheath assembly 110. This limits the extent to which the tongue portion 122 protrudes from the sheath assembly 110, thereby limiting the depth to which the tongue portion 122 can be inserted into the retaining groove 222. This creates a gap between the front end of the tongue portion 122 and the bottom wall 2221 of the limiting groove 222, reducing the possibility of the tongue portion 122 abutting against the bottom wall 2221 of the limiting groove 222 and reducing the friction between the two. As a result, when the clamp assembly 200 and the conveying device 100 are connected, the rotation reliability is greatly improved, which can effectively reduce the difficulty of the surgical operation.

[0126] Please refer again Figure 18 In some embodiments, the elastic portion 121 has a fixed end 1211 and a movable end 1212 that are arranged opposite to each other. Figure 17 and Figure 18 The fixed end 1211 is fixed within the sheath assembly 110, and the tongue portion 122 is connected to the movable end 1212 and extends from the movable end 1212 toward the lateral hole 114. When the elastic portion 121 is squeezed, it can produce elastic deformation, so that the movable end 1212 drives the tongue portion 122 to move. The fixed end 1211 is the end of the elastic portion 121 that is fixedly connected to the sheath assembly 110, and the movable end 1212 is the end that can move when the elastic portion 121 is squeezed. The tongue portion 122 extends from the movable end 1212 toward the lateral hole 114. When the elastic portion 121 is not squeezed, the connecting assembly 120 is in the first position, and the tongue portion 122 passes through the lateral hole 114 and extends out of the transition cap 112. When the elastic portion 121 is squeezed by the first protrusion 1191, the connecting assembly 120 moves to the second position, and the tongue portion 122 can be retracted from the lateral hole 114 into the channel 113, that is, the tongue portion 122 is completely located on the side of the lateral hole 114 close to the channel 113; or part of the structure of the tongue portion 122 is located inside the channel of the lateral hole 114; or part of the structure of the tongue portion 122 is located on the side of the lateral hole 114 away from the channel 113, that is, slightly protruding from the outside of the lateral hole 114.

[0127] In some embodiments, the elastic portion 121 extends in a curved manner from the fixed end 1211 to the movable end 1212. Specifically, from the fixed end 1211 to the movable end 1212, at least a portion thereof bends and extends into the first guide groove 1123, and at least another portion thereof extends into the channel 113 and decreases in distance from the central axis O.

[0128] In some embodiments, the sheath assembly 110 further includes an assembly hole 117 communicating with the channel 113, and the connecting assembly 120 further includes a bent portion 123 connected to the fixed end 1211. The bent portion 123 is disposed within the assembly hole 117 and abuts against the hole wall 1171 of the assembly hole 117. By providing the bent portion 123 at the fixed end 1211 and utilizing the bent portion 123 to abut against the hole wall 1171 of the assembly hole 117, the assembly of the elastic portion 121 is further stabilized. The bent portion 123 may be a U-shaped structure formed by bending, which utilizes its own elasticity to more stably secure the elastic portion 123 to the hole wall 1171 of the assembly hole 117, thereby improving assembly stability.

[0129] In some embodiments, the transition cap 112 has a plurality of assembly holes 117 arranged along its circumference, and the delivery device 100 includes a plurality of connecting assemblies 120, with the bent portion 123 of each connecting assembly 120 disposed in one of the assembly holes 117. By providing a plurality of connecting assemblies 120, the stability of the connection with the clamping base 220 can be effectively improved.

[0130] It is understood that the number of connection assemblies 120, the number of assembly holes 117, and the number of lateral holes 114 are consistent. Optionally, the number can be 1, 2, 3, 4, or even more, and can be specifically set as needed. Optionally, multiple connection assemblies 120, multiple assembly holes 117, and multiple lateral holes 114 can be evenly arranged along the circumference of the sheath assembly 110.

[0131] In some embodiments, the lateral hole 114 is disposed on a side of the first guide slot 1123 close to the distal end 116 , and the assembly hole 117 is disposed on a side of the first guide slot 1123 close to the proximal end 115 .

[0132] In some embodiments, the lateral hole 114 , the first guide groove 1123 , and the assembly hole 117 are sequentially arranged along a straight line.

[0133] Accordingly, if Figure 1 、 Figure 2 、 Figure 9 、 Figure 10 、 Figure 13 and Figure 14As shown, an embodiment of the present application also provides a clamp device, which includes a conveying device 100 as in any of the above embodiments, and a clamp assembly 200. The conveying device 100 is used to convey the clamp assembly 200. The clamp assembly 200 and the conveying device 100 are configured as split structures. The clamp assembly 200 includes a clamp 210 and a clamp seat 220 that accommodates at least part of the clamp 210. The clamp 210 is configured to be connected to the cable assembly 130 of the conveying device 100, and the clamp seat 220 is configured to be connected to the connecting assembly 120 of the conveying device 100.

[0134] In some embodiments, the cable assembly 130 has a first motion state of moving toward the proximal end 115 of the sheath assembly 110 and a second motion state of moving toward the distal end 116; in the first motion state, the cable assembly 130 pushes the control ring 119 so that its first protrusion 1191 squeezes the connecting assembly 120, so that the connecting assembly 120 moves from the first position to the second position; the distal end 116 of the sheath assembly 110 can be inserted into the clamp seat 220; in the second motion state, the connecting assembly 120 moves from the second position to the first position, is connected to the clamp seat 220, and the cable assembly 130 can be connected to the clamp 210.

[0135] Please combine Figure 20 and Figure 21 The clamp assembly 200 includes a clamp 210 and a clamp seat 220. At least a portion of the clamp 210 is accommodated in the clamp seat 220. The clamp 210 includes a clip element 211 for clamping tissue / wound surface and a buckle 212 connected to the clip element 211. The clamp 210 is configured to be connected to the cable assembly 130. The inner circumferential surface 221 of the clamp seat 220 is provided with a limiting groove 222. The connecting assembly 120 can be inserted into the limiting groove 222 to connect with the clamp seat 220. By providing a boss 1221 on the tongue portion 122 of the connecting assembly 120, the boss 1221 is used to control the depth of the tongue portion 122 extending out of the lateral hole 114, which can reduce the contact area between the tongue portion 122 and the groove wall of the limiting groove 222, reduce friction, and make the clamp assembly 200 rotate more flexibly.

[0136] Please combine Figure 21 、 Figure 22 、 Figure 23 、 Figure 24 and Figure 25 In some embodiments, the buckle 212 includes at least two holding units 213 arranged around its axis M, and the holding unit 213 has a holding portion 2131 at one end away from the clip element 211. Figure 24 As shown, the coupling head 132 of the cable assembly 130 can be inserted between at least two retaining units 213 of the buckle 212 , and the retaining portion 2131 is used to limit the coupling head 132 so that the coupling head 132 is connected to the buckle 212 .

[0137] Optionally, in Figure 21 and Figure 22 In the illustrated embodiment, the tab 212 includes a hinged seat 217 and three retaining units 213 connected to one end of the hinged seat 217. The hinged seat 217 is hingedly connected to the clip element 211, and each retaining unit 213 has a retaining portion 2131. The three retaining units 213 are spaced apart around the central axis M, and a receiving slot 2122 is formed between the three retaining units 213. The conical head 1321 of the coupling head 132 can be inserted into the receiving slot 2122. The retaining portions 2131 are disposed at the notch 2123 of the receiving slot 2122, and all three retaining portions 2131 protrude inwardly along the radial direction of the tab 212. When the conical head 1321 is inserted into the receiving slot 2122, the retaining portions 2131 can be locked onto the side of the conical head 1321 near the ridge 1323, thereby retaining the conical head 1321 in position.

[0138] Optionally, in Figure 23 、 Figure 24 In the illustrated embodiment, the tab 212 includes a hinged base 217 and two retaining units 213 connected to one end of the hinged base 217. The hinged base 217 is hingedly connected to the clip element 211. The two retaining units 213 are disposed on either side of the central axis M and are spaced apart from each other. The retaining units 213 also include a first retaining arm 2132 and a second retaining arm 2133, respectively, connected to the hinged base 217. A retaining portion 2131 is disposed on the side of the first and second retaining arms 2132, 2133 that is distal from the hinged base 217 and connects the first and second retaining arms 2132, 2133. The hinged base 217 includes two thin sheet-like structures, each provided with a pin hole, which is hingedly connected to the clip element 211 through the pin hole. One of the thin sheet-like structures connects the first retaining arms 2132 of the two retaining units 213, while the other thin sheet-like structure connects the second retaining arms 2133 of the two retaining units 213.

[0139] like Figure 27As shown, when the coupling head 132 is inserted between at least two retaining units 213, the retaining portion 2131 is located between the conical head 1321 and the ridge portion 1323 of the coupling head 132 and is in contact with the coupling portion 1322. The cross-section of the coupling portion 1322 perpendicular to the axial direction of the coupling head 132 is non-circular. This allows the cable assembly 130 to transmit torque to the clamp 210, thereby driving the clamp assembly 200 to rotate relative to the connecting assembly 120, improving the convenience and flexibility of operation. In addition, the depth of the tongue portion 122 extending out of the lateral hole 114 is controlled by the combined shoulder 1221, further improving the flexibility of rotation. Specifically, a gap is formed between the retaining portions 2131 of the multiple retaining units 213 to accommodate the coupling portion 1322, and the shape of this gap is also generally non-circular. The non-circular shape can be a polygon, such as a square, triangle, hexagon, etc. It can also be a D-shape, ellipse, star-shaped, multi-toothed shape, etc., as long as it can cooperate with the clamp 210 to transmit torque. Figure 26 As shown, the cross section of the joint portion 1322 is rectangular; Figure 27 As shown, the cross section of the joint 1322 is a pentagon; Figure 28 As shown, the cross section of the joint portion 1322 is triangular; Figure 29 As shown, the cross section of the joint 1322 is a “+” shape; Figure 30 As shown, the cross section of the coupling portion 1322 is gear-shaped. In some embodiments, the cross section of the coupling portion 1322 perpendicular to the axial direction of the cable assembly 130 can also be circular, and the torque can be transmitted by interference fit. The specific selection can be made according to actual use. Figure 21 The internal space of the clamp seat 220 has a first section 223 and a second section 224 arranged in sequence along its axial direction. The first section 223 is located on the side of the second section 224 away from the clip element 211, and the radial dimension R of the first section 223 is greater than the radial dimension r of the second section 224.

[0140] Please combine Figure 10 When the holding portion 2131 is located in the first section 223, the holding portions 2131 of at least two holding units 213 can be moved away from each other by the squeezing force of the bonding head 132. Figure 9 and Figure 10When the clip assembly 211 is in the closed position shown and secured within the protective shell 300, the retaining portion 2131 is located within the first section 223. The cable assembly 130 moves toward the distal end 116 of the sheath assembly 110, squeezing the retaining portion 2131 and causing the retaining units 213 to elastically deform. The retaining portions 2131 move away from each other, allowing the tapered head 1321 of the coupling head 132 to engage between the retaining units 213, thereby achieving connection with the clasp 212. When the clip element 211 is locked, the retaining portion 2131 is also located within the first section 223. The cable assembly 130 moves toward the proximal end 115 of the sheath assembly 110, squeezing the retaining portion 2131 and causing the retaining units 213 to elastically deform. The retaining portions 2131 move away from each other, allowing the tapered head 1321 of the coupling head 132 to disengage from the clasp 212, thereby releasing the clip assembly 200.

[0141] In addition, the cone head 1321 is set to a cone-shaped structure. When the coupling head 132 is inserted into the buckle 212, the cone surface of the cone head 1321 first contacts the buckle 212, which can play a guiding role. Therefore, the force required to insert the buckle 212 is very small, and it is relatively easy to insert into the buckle 212; when the coupling head 132 is pulled out from the buckle 212, there is no cone surface to guide, so the pulling force value is large, which can ensure that the clip element 211 enters the locked state.

[0142] When the retaining portion 2131 is located within the second section 224, the inner circumferential surface 221 of the clamp seat 220 can contact the outer circumferential surface 2121 of the retaining unit 213, thereby preventing the retaining portions 2131 of at least two retaining units 213 from moving away from each other. In this state, the conical head 1321 of the coupling head 132 will not prematurely disengage from the tab 212, making it difficult for the coupling head 132 to prematurely disengage from the tab 212. This effectively solves the clinical pain point of the clip element 211 being unable to clamp or collapsing, improves the reliability of the clamping, ensures that the clip element 211 can clamp larger wounds, and ensures the stability of the surgical operation. When the clip assembly 200 is released, the retaining portion 2131 of the tab 212 is located within the first section 223. This portion is not constrained by the inner circumferential surface 221 and is more likely to expand outward, that is, move away from each other. In this state, the connection force between the coupling head 132 and the tab 212 is relatively small, making it easier to release. The phrase "the inner circumferential surface 221 of the clamping seat 220 can contact the outer circumferential surface 2121 of the holding unit 213" means that when the holding unit 213 is pressed by the bonding head 132, its outer circumferential surface 2121 can move outward and contact the inner circumferential surface 221 of the clamping seat 220 because it is restrained by the inner circumferential surface 221. In practice, the gap between the outer circumferential surface 2121 of the holding unit 213 and the inner circumferential surface 221 of the clamping seat 220 can be set relatively small so that the outer circumferential surface 2121 can be restrained by the inner circumferential surface 221 when moving outward.

[0143] The buckle 212 is configured as an elastic structure, so that the cone head 1321 can be elastically deformed during the process of being inserted into the buckle 212 , thereby limiting the cone head 1321 within the buckle 212 .

[0144] like Figure 20 As shown, the clip element 211 of the clip assembly 200 includes a first clip 211a and a second clip 211b hinged to the buckle 212, and both the first clip 211a and the second clip 211b are provided with a slide groove 214. Figure 14 As shown, a pin 225 is provided in the clamp seat 220, and the pin 225 is inserted into the slide slot 214. The slide slot 214 has an open position A, a closed position B, and a locked position C. When the pin 225 is in the open position A, the first clip 211a and the second clip 211b are open, that is, the clip element 211 is in an open state; when the pin 225 is in the closed position B, the first clip 211a and the second clip 211b are closed, that is, the clip element 211 is in a closed state; when the pin 225 is in the locked position C, the first clip 211a and the second clip 211b are locked.

[0145] Specifically, the cable assembly drives the clip element 211 via the pull buckle 212, allowing the pin 225 to reciprocate between the open position A and the closed position B. The locked position C is located on the side of the closed position B away from the open position A. A first protrusion 215a is provided in the sliding groove 214 of the first clip 211a, and a second protrusion 215b is provided in the sliding groove 214 of the second clip 211b, opposite to the first protrusion 215a. The first protrusion 215a and the second protrusion 215b are located between the locked position C and the closed position B. The cable assembly drives the clip element 211 toward the proximal end via the pull buckle 212, causing the pin 225 to press against the first protrusion 215a and the second protrusion 215b and move to the locked position C.

[0146] In some embodiments, the first clip 211a is provided with a first relief notch 216a, and the second clip 211b is provided with a second relief notch 216b. The pin 225 compresses the first protrusion 215a and the second protrusion 215b, causing the first protrusion 215a to deform toward the first relief notch 216a and the second protrusion 215b to deform toward the second relief notch 216b. This makes it easier for the pin 225 to snap into the locking position C. When the pin 225 snaps into the locking position C, the retaining portion 2131 of the tab 212 moves to the first section 223. The force required for the pin 225 to pass through the first and second protrusions 215a, 215b and snap into the locking position C is less than the force required for the coupling head 132 to disengage from the tab 212.

[0147] To facilitate assembly of the clamp assembly 200 and the delivery device 100, the clamp device further includes: Figure 31The protective shell 300 shown is used to assemble the clamp assembly 200 and the conveying device 100. The protective shell 300 includes a positioning assembly 320. The clamp assembly 200 can be accommodated in the protective shell 300, and the conveying device 100 can be inserted into the protective shell 300 and positioned in cooperation with the positioning assembly 320 so as to be connected to the clamp assembly 200.

[0148] In some embodiments, please refer to Figure 31 and Figure 32 The protective shell 300 also includes: a shell assembly 310, the interior of the shell assembly 310 has a receiving groove 311 and an assembly groove 312, the receiving groove 311 is used to place the clip assembly 200, and the assembly groove 312 is used for the conveying device 100 to be inserted into the receiving groove 311; a positioning assembly 320 is connected to the shell assembly 310, and includes a first positioning portion 321 and a second positioning portion 322 arranged opposite to each other, the first positioning portion 321 and the second positioning portion 322 are arranged between the receiving groove 311 and the assembly groove 312, the first positioning portion 321 and the second positioning portion 322 are used to cooperate with the sheath assembly 110 in the conveying device 100 when the conveying device 100 is inserted into the receiving groove 311 to position the sheath assembly 110. Specifically, a matching structure can be provided on the transition cap 112 of the sheath assembly 110 , and the first positioning portion 321 and the second positioning portion 322 cooperate with the matching structure to position the transition cap 112 so that the delivery device 100 and the clamp assembly 200 are precisely aligned.

[0149] In some embodiments, the groove wall of the assembly groove 312 near the opening of the shell assembly 310 is set as a guide surface 3121. The guide surface 3121 is roughly conical and can accurately guide the conveying device 100 so that the conveying device 100 can be accurately inserted into the protective shell 300.

[0150] The present application also provides an assembly method for the clamp device of any of the above embodiments. The assembly method includes:

[0151] Manipulate the handle mechanism 140 of the delivery device 100 to move the cable assembly 130 of the delivery device 100 toward the side where the proximal end 115 is located, and move the connecting assembly 120 to the second position;

[0152] Insert the delivery device 100 into the protective shell 300 so that the positioning assembly 320 of the protective shell 300 cooperates with the delivery device 100, and position the delivery device 100 so that the sheath assembly 110 of the delivery device 100 is inserted into the clamp seat 220 of the clamp assembly 200;

[0153] The handle mechanism 140 is manipulated to move the cable assembly 130 of the delivery device 100 toward the distal end 116, thereby connecting the connecting assembly 120 to the clamp seat 220 and connecting the cable assembly 130 to the clamp 210; wherein the clamp assembly 200 is received in the protective housing 300 in a closed state;

[0154] The assembly is completed by pulling the delivery device 100 out of the protective shell 300 and taking the clip assembly 200 with it. The clip assembly 200 is received in the protective shell 300 in a closed state to facilitate the connection between the pull tab 212 and the coupling head 132.

[0155] Specifically, when the sheath assembly 110 and the cable assembly 130 of the delivery device 100 are inserted into the protective shell 300, the transition cap 112 of the sheath assembly 110 squeezes the first positioning portion 321 and the second positioning portion 322, causing them to elastically deform and move away from each other. When the distal end 116 of the transition cap 112 is inserted into the receiving groove 311, the first positioning portion 321 and the second positioning portion 322 clamp the transition cap 112 due to the elastic reset force, thereby positioning it. Optionally, a limiting recess is provided on the transition cap 112, and the first positioning portion 321 and the second positioning portion 322 are snapped into the limiting recess to position it.

[0156] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0157] The above is a detailed introduction to the conveying device 100 and the clamp device provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A conveying device, characterized in that: Suitable for conveying a clip assembly, the clip assembly including a clip seat; the conveying device includes: The sheath assembly includes a transition cap and a control ring sleeved on the transition cap, wherein the transition cap has a first guide groove extending along its axial direction, and the control ring has a first protrusion disposed in the first guide groove; a connecting assembly connected to the transition cap, wherein the connecting assembly is partially disposed in the first guide groove; The control ring is configured to be able to move axially along the transition cap, so that the first protrusion squeezes the connecting assembly to move the connecting assembly from a first position to a second position closer to the central axis O of the sleeve assembly than the first position. In the first position, the connecting assembly can be connected to the clamp seat.

2. The conveying device according to claim 1, characterized in that The control ring is configured to be movable toward the proximal end of the sheath assembly so as to cause the first protrusion to press the connecting assembly.

3. The conveying device according to claim 2, characterized in that The transition cap is provided with a first limiting step; The sheath assembly further includes a reset elastic member sleeved on the transition cap. The reset elastic member is arranged on a side of the control ring close to the proximal end and between the first limiting step and the control ring.

4. The conveying device according to claim 2, characterized in that The transition cap further comprises a second guide groove extending along its axial direction, and the control ring further comprises a second protrusion, the second protrusion being passed through the second guide groove and partially disposed in the channel of the transition cap; the conveying device further comprises: A cable assembly is provided through the channel, and the cable assembly can move toward the proximal end of the sheath assembly and abut against the second protrusion to push the control ring to move toward the proximal end.

5. The conveying device according to claim 4, characterized in that There are multiple first guide grooves and / or multiple second guide grooves, and the second guide grooves and the first guide grooves are arranged along the circumference of the transition cap.

6. The conveying device according to claim 5, characterized in that The number of the first protrusions is consistent with the number of the first guide grooves, and each first protrusion is provided corresponding to one first guide groove; The number of the second protrusions is consistent with the number of the second guide grooves, and each second protrusion is provided corresponding to one second guide groove.

7. The conveying device according to claim 4, characterized in that The cable assembly comprises a cable body and a coupling head connected to each other, wherein the cable body is configured to drive the coupling head to move along the sheath assembly; When the cable body drives the coupling head to move toward the distal end of the sheath assembly, the coupling head can be connected to the clamp of the clamp assembly; When the cable body drives the coupling head to move toward the proximal end of the sheath assembly, the coupling head can abut against the second protrusion to push the control ring to move toward the proximal end.

8. The conveying device according to claim 7, characterized in that The bonding head comprises: a cone head configured to be inserted into a clamp of the clamp assembly; a convex ridge portion, spaced apart from the cone head, wherein the convex ridge portion is capable of abutting against the second convex portion when moving toward the proximal end; a connecting portion connected between the convex ridge portion and the cone head; When the cone head is inserted into the clamp, at least a portion of the clamp is located between the cone head and the ridge portion and is in contact with the joint portion.

9. The conveying device according to claim 1, characterized in that The connecting assembly includes an elastic portion and a tongue portion connected to each other, the elastic portion is disposed in the channel of the transition cap and partially disposed in the first guide groove, and the first protrusion presses the elastic portion to move the connecting assembly from the first position to the second position; In the first position, the tongue portion protrudes from the transition cap and is connectable to the clamp seat, and a first distance exists between the tongue portion and the central axis O; In the second position, the tongue portion has a second distance from the central axis O, and the second distance is smaller than the first distance.

10. The conveying device according to claim 9, characterized in that The elastic portion includes an arched section and an extension section, wherein the arched section is disposed in the first guide groove, and the extension section is disposed in the channel and connects the arched section and the tongue portion; The first protrusion is capable of compressing the arched section to move the connecting assembly from the first position to the second position.

11. The conveying device according to claim 9, characterized in that The transition cap further has a lateral hole. In the first position, the tongue portion passes through the lateral hole and protrudes out of the transition cap so as to be connected to the clamp seat.

12. The conveying device according to claim 11, characterized in that The tongue portion is provided with a shoulder, which is located in the channel of the transition cap. In the first position, the shoulder abuts against the edge of the lateral hole to limit the size of the tongue portion protruding outside the transition cap.

13. The conveying device according to claim 11, characterized in that The elastic portion has a fixed end and a movable end that are relatively arranged. The fixed end is fixed on the transition cap. The tongue portion is connected to the movable end and extends from the movable end toward the lateral hole. The elastic portion can generate elastic deformation when squeezed, so that the movable end drives the tongue portion to move.

14. The conveying device according to claim 13, characterized in that The sheath assembly further comprises an assembly hole, and the connecting assembly further comprises a bending portion, wherein the bending portion is connected to the fixed end, the bending portion is arranged in the assembly hole, and abuts against the hole wall of the assembly hole.

15. The conveying device according to claim 14, characterized in that The transition cap has a plurality of assembly holes arranged along its circumference, the conveying device includes a plurality of connecting components, and the bending portion of each connecting component is arranged in one of the assembly holes.

16. A clamp device, characterized in that include: The delivery device according to any one of claims 1 to 15, and The clamp assembly, the conveying device is used to convey the clamp assembly, the clamp assembly and the conveying device are arranged as split structures, the clamp assembly includes a clamp and a clamp seat that accommodates at least part of the clamp, the clamp is arranged to be connected to the cable assembly of the conveying device, and the clamp seat is arranged to be connected to the connecting assembly of the conveying device.

17. The clamp device according to claim 16, characterized in that The clamp comprises a clip element and a buckle connected to each other, wherein the buckle comprises at least two holding units arranged around its axis M, and the holding unit has a holding portion at one end away from the clip element; The coupling head of the cable assembly can be inserted between the at least two holding units, and the holding portion is used to limit the coupling head so that the coupling head is connected to the buckle.

18. The clamp device according to claim 17, characterized in that The inner space of the clamp seat has a first section and a second section arranged in sequence along its axial direction, the first section is located on a side of the second section away from the clip element, and a radial dimension R of the first section is greater than a radial dimension r of the second section; When the holding portion is located in the first section, the holding portions of the at least two holding units can be moved away from each other by the squeezing force of the bonding head; When the holding portion is located in the second section, the inner circumferential surface of the clamping seat can contact the holding unit to prevent the holding portions of the at least two holding units from moving away from each other.

19. The clamp device according to claim 17, wherein An accommodating groove is formed between the at least two holding units, and the coupling head can be inserted into the accommodating groove; the holding portion is arranged at the notch of the accommodating groove and protrudes radially inward.

20. The clamp device according to claim 17, wherein The buckle further includes a hinged seat hinged to the clip element, and the holding unit is arranged on a side of the hinged seat away from the clip element; The holding unit further includes a first holding arm and a second holding arm respectively connected to the hinge seat. The holding portion is arranged on a side of the first holding arm and the second holding arm away from the hinge seat, and connects the first holding arm and the second holding arm.

21. The clamp device according to claim 17, wherein When the bonding head is inserted between the at least two holding units, the holding portion is located between the cone head and the ridge portion of the bonding head and is in contact with the bonding portion.

22. The clamp device according to claim 21, characterized in that The coupling head can drive the clip assembly to rotate relative to the connecting assembly.

23. A clamp device according to any one of claims 17 to 22, characterized in that The buckle is configured as an elastic structure.

24. The clamp device according to claim 17, wherein The clip element includes a first clip and a second clip hinged to the buckle, and the first clip and the second clip are both provided with a slide groove; a pin is provided in the clip seat, and the pin is inserted into the slide groove; The slide groove is provided with an open position, a closed position and a locked position, and the cable assembly drives the clip element to move through the buckle, so that the pin shaft can reciprocate between the open position and the closed position; In the open position, the first clip and the second clip are open, and in the closed position, the first clip and the second clip are closed; The locking position is located on the side of the closed position away from the open position, a first protrusion is provided in the sliding groove of the first clip, and a second protrusion opposite to the first protrusion is provided in the sliding groove of the second clip, and the first protrusion and the second protrusion are located between the locking position and the closed position; the cable assembly drives the clip element toward the proximal end through the buckle, so that the pin shaft squeezes the first protrusion and the second protrusion and moves to the locking position, and in the locking position, the first clip and the second clip are locked.

25. The clamp device according to claim 24, characterized in that The first clip is provided with a first avoidance notch, and the second clips are both provided with a second avoidance notch. The pin shaft squeezes the first protrusion and the second protrusion, so that the first protrusion can be deformed toward the first avoidance notch and the second protrusion can be deformed toward the second avoidance notch.

Images