Continuous-firing hemostatic clip capable of turning and rotating

Abstract

The continuous-firing hemostatic clip comprises a plurality of hemostatic clip assemblies, a clip storage tube and a conveying rod, the hemostatic clip assemblies are detachably connected with the clip storage tube, the hemostatic clip assemblies are detachably connected with the conveying rod, the hemostatic clip assemblies can be arranged in the clip storage tube, and the conveying rod is detachably connected with the hemostatic clip assemblies. The hemostatic clip assembly comprises a clip piece assembly, a fixed seat and a tightening pipe, the clip piece assembly is connected with the fixed seat, the fixed seat is sleeved with the tightening pipe, the clip storage pipe is provided with a bending part, a baffle ring and a clamping table, the conveying rod is provided with a deformation part, and the deformation part is provided with a pulling clamping face and a rotating clamping face. Compared with the prior art, the running-firing hemostatic clip has the beneficial effects that the hemostatic clip assembly can be released for multiple times, the wide-angle bending function can be achieved, and the hemostatic clip assembly can rotate. The running-firing hemostatic clip is few in parts, simple to assemble and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a continuous hemostatic clip capable of turning and rotating. Background Art

[0002] Currently, hemostatic clips are a widely used hemostatic method during endoscopic procedures. The core principle of hemostatic clips is to use the mechanical force generated by the clips to tightly clamp tissue wounds or blood vessels, promoting vascular closure and thus achieving hemostasis. Over time, as the wound heals, the clips naturally fall off along with the formed scab tissue and are eventually excreted from the body through the digestive tract. This hemostatic method causes minimal damage to the surrounding mucosa and can precisely close visible bleeding vessels and lesions. It exhibits significant advantages in the treatment of bleeding from small arterial ruptures.

[0003] Prior art includes not only single-shot hemostatic clips but also hemostatic clip devices capable of continuous firing. For example, Hangzhou Anjiesi Medical Technology Co., Ltd. has disclosed a continuous firing ligation device. This device comprises a clamping unit, which includes a clamp assembly and a storage tube for the clamp assembly, and a transport control unit, which includes a pull line, a push tube, and a control handle. The patent publication number for this continuous firing ligation device is CN107106181A.

[0004] However, the continuous hemostatic clip device including the above-mentioned continuous ligation device still has technical defects, which are: 1. The internal structure of the continuous hemostatic clamp is complex, with many parts, and it is difficult to assemble; 2. Lack of flexibility. When faced with complex hemostasis positions, it is difficult to pass through curved parts, and the scope of use is limited; 3. The clamp cannot be rotated, and it is impossible to accurately stop bleeding when facing the bleeding area.

[0005] Therefore, there is an urgent need to develop a continuous hemostatic clip that has a simple overall structure and can pass through large-angle bending parts, and it is hoped that the continuous hemostatic clip has a rotation function. Summary of the Invention

[0006] The present invention aims to address the shortcomings of the prior art and provide a continuous hemostatic clip with a simple overall structure, capable of passing through large-angle bends, and having a rotation function. The continuous hemostatic clip comprises a plurality of hemostatic clip assemblies, a clip storage tube, and a delivery rod. The hemostatic clip assemblies are detachably connected to the clip storage tube, the clip assemblies are detachably connected to the delivery rod, and the clip assemblies can be disposed within the clip storage tube. The clip assemblies comprise a clip assembly, a fixing seat, and a tightening tube. The clip assembly is connected to the fixing seat, and the fixing seat is sleeved within the tightening tube. The clip storage tube is provided with a bending portion, a retaining ring, and a clamping platform. The delivery rod is provided with a deforming portion, and the deforming portion is provided with a pulling clamping surface and a rotating clamping surface.

[0007] Preferably, the retaining ring forms a retaining ring surface inside the storage clip tube, the storage clip tube is an elastic hard tube, a spiral cut is opened on the surface of the storage clip tube, and the clamping platform forms a limiting surface and a clamping surface inside the storage clip tube.

[0008] Preferably, the fixing seat includes a front end of the fixing seat, a fixing platform and a rear end of the fixing seat, the front end of the fixing seat is provided with a mounting platform, a mounting surface and an elastic baffle, the mounting platform and the mounting surface can be used to connect the clip; the front end of the fixing seat is provided with an elastic baffle sinking groove for accommodating the elastic baffle.

[0009] Preferably, a fixed platform clamping surface is provided on the fixed platform, a ramp and a ramp sinking groove are provided on the rear end of the fixed seat, one end of the ramp is connected to the main body at the rear end of the fixed seat, a ramp clamping surface and a ramp constraint surface are provided on the ramp platform, the ramp clamping surface is close to the fixed platform, a fixed seat inner clamping platform is provided on the end surface of the rear end of the fixed seat, and the ramp constraint surface is close to the fixed seat inner clamping platform; the interior of the fixed seat is hollow, and a fixed seat inner clamping strip for clamping with the conveying rod is provided inside.

[0010] Preferably, the body at the front end of the fixing seat, the body at the rear end of the fixing seat, the fixing platform and the mounting platform are cylindrical structures, the mounting surface is a plane, and the mounting surface is arranged on the body at the front end of the fixing seat.

[0011] Preferably, a tightening tube boss is provided on the side surface of the tightening tube, the rear end of the tightening tube boss forms a boss clamping surface, the front end of the tightening tube boss is provided with a boss sliding surface, and the tightening tube body is provided with a boss sinking groove.

[0012] Preferably, a baffle is provided at the front end of the tightening tube, a tightening tube inner clamp is provided at the rear end of the tightening tube, an inner clamp surface is provided on the tightening tube inner clamp, an outer clamp surface is formed on the rear end outer end face of the tightening tube, and a clamp limiting surface is provided inside the cavity of the tightening tube.

[0013] Preferably, the clip assembly includes a clip, a mounting hole is provided at the rear end of the clip, a clamping portion is provided at the front end of the clip, the clamping portion is connected to the clip body, a pull rod through hole is provided on the clamping portion, and the outer end surface of the clamping portion is an engaging surface.

[0014] Preferably, a coating of a variable friction coefficient material is coated on the front end of the clip, and the variable friction coefficient material is one or more of a temperature-sensitive material and a pH-responsive material.

[0015] Preferably, an electromagnet is provided on each of the two Y-shaped arms at the front end of the conveying rod. The direction of the magnetic field of the electromagnet is variable. The electromagnet can change the angle of the two arms at the front end of the conveying rod. Any of the electromagnets can be turned on individually, and a magnet is provided at the rear end of the fixing seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The fixed seat mounting platform can support the tightening tube boss during the pulling process to prevent it from slipping off the storage tube clamping platform, thereby increasing the structural stability; 2. The clamp can be controlled by the internal clamping method of the fixing base, which is easy to operate; 3. The locking of the clip is achieved by tightening the tube, the fixing platform of the fixing seat and the inclined platform, which is stable and reliable; 4. The clip is released automatically and is not easy to tear tissue; 5. The curved part of the conveying rod 5 is hollowed out, which is elastic and reusable; 6. The limiting method of the storage clip tube 4 can not only prevent the hemostatic clip assembly from re-entering, but also help the hemostatic clip assembly fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 1 is a schematic structural diagram of a clip in a first embodiment of the present invention; Figure 2 1 is a schematic structural diagram of a fixing base in the first embodiment of the present invention; Figure 3 1 is a schematic cross-sectional structural diagram of the fixing base in the first embodiment of the present invention; Figure 4 Schematic diagram of the structure of the tightening tube in the first embodiment of the present invention; Figure 5 This is a schematic structural diagram of the tightening tube boss in the first embodiment of the present invention; Figure 6 1 is a schematic cross-sectional view of the tightening tube in the first embodiment of the present invention; Figure 7 1 is a schematic cross-sectional view of the storage clamp tube in Example 1 of the present invention; Figure 8 1 is a schematic structural diagram of a storage clamp tube in a first embodiment of the present invention; Figure 9 1 is a schematic structural diagram of the conveying rod in the first embodiment of the present invention; Figure 10 1 is a schematic structural diagram of the continuous hemostatic clip capable of turning and rotating when the hemostatic clip assembly is not released in the first embodiment of the present invention; Figure 11 1 is a schematic diagram of a first release process of the first hemostatic clip assembly in Example 1 of the present invention; Figure 12 1 is a schematic diagram of the third release process of the first hemostatic clip assembly in the first embodiment of the present invention; Figure 13 1 is a schematic diagram of the fourth release process of the first hemostatic clip assembly in the first embodiment of the present invention; Figure 14 1 is a schematic diagram of the fifth release process of the first hemostatic clip assembly in Example 1 of the present invention; Figure 15 1 is a schematic diagram of the first release process of the second hemostatic clip assembly in Example 1 of the present invention; Figure 16 Schematic diagram of a position of the second hemostatic clip assembly during the second release process in the first embodiment of the present invention.

[0018] Reference numerals: Clip 1, mounting hole 11, pull rod through hole 12, meshing surface 13, fixed seat 2, fixed platform 21, fixed platform clamping surface 211, inclined platform 22, inclined platform clamping surface 221, inclined platform constraint surface 222, inclined platform sinking groove 223, mounting platform 23, mounting surface 24, elastic baffle 25, elastic baffle sinking groove 252, fixed seat inner clamping platform 26, fixed seat inner clamping strip 27, tightening tube 3, tightening tube boss 31, Boss clamping surface 311, boss sinking groove 312, boss sliding surface 313, tightening tube clamping platform 32, clamping platform inner surface 321, clamping platform outer surface 322, clamping platform limiting surface 323, baffle 33, storage clamp tube 4, bending part 41, baffle ring 42, baffle ring surface 421, clamping platform 43, clamping surface 431, limiting surface 432, conveying rod 5, deformation part 51, pulling clamping surface 511 and rotating clamping surface 512. DETAILED DESCRIPTION

[0019] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0020] In the description of the present invention, it should be understood that 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 number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, unless otherwise specifically defined.

[0021] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] In the description of this specification, reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0023] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0024] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, described in this specification, unless they are mutually inconsistent.

[0025] In order to illustrate the technical solution of the present invention, specific embodiments are provided below. Example

[0026] like Figure 10As shown, the present invention provides a continuous hemostatic clip capable of turning and rotating, comprising a plurality of hemostatic clip assemblies, a clip storage tube 4, and a delivery rod 5. The hemostatic clip assembly is detachably connected to the clip storage tube 4. The hemostatic clip assembly is detachably connected to the delivery rod 5.

[0027] The hemostatic clip assembly includes a clip assembly, a fixing base 2, and a tightening tube 3. Preferably, there are two hemostatic clip assemblies: a first hemostatic clip assembly and a second hemostatic clip assembly. The clip assembly includes a pair of clips 1. The two clips 1 are arranged opposite each other. The tightening tube 3 can be sleeved within the clip storage tube 4.

[0028] like Figure 1 As shown, the clip 1 is used for clamping human tissue. The clip 1 is connected to the fixing base 2. The tightening tube 3 is sleeved on the outside of the fixing base 2.

[0029] The rear end of the clip 1 is provided with a mounting hole 11, and the front end of the clip 1 is provided with a clamping portion, which is connected to the main body of the clip 1. The clamping portion is provided with a pull rod through hole 12. The outer end surface of the clamping portion is a mating surface 13. Preferably, the clamping portion and the main body of the clip 1 are arranged in an L-shape. The main body of the clip 1 is also provided with a first through hole.

[0030] like Figure 2 and Figure 3 As shown, the fixing base 2 includes a fixing base front end, a fixing platform 21, and a fixing base rear end. The fixing base front end is provided with a mounting platform 23, a mounting surface 24, and an elastic retaining piece 25. The mounting platform 23 and the mounting surface 24 are used to connect to the clip 1. The mounting platform 23 can pass through the mounting hole 11. The mounting surface 24 can contact the clip 1.

[0031] Preferably, the front and rear bodies of the fixing base, the fixing platform 21, and the mounting platform 23 are cylindrical structures. The mounting surface 24 is a flat surface, provided on the front body of the fixing base. This can be understood as a flat surface cut along the cylindrical axis on the side of the front body of the fixing base. The mounting platform 23 is provided on the mounting surface 24. To match the two opposing clips 1, the mounting platform 23 and mounting surface 24 are also provided in two corresponding groups, upper and lower.

[0032] An elastic baffle sinking groove 252 is provided at the front end of the fixing seat, which is used to accommodate the elastic baffle 25. The elastic baffle sinking groove 252 and the elastic baffle accommodating hole provide elastic activity space for the elastic baffle 25, and one end of the elastic baffle 25 is connected to the main body at the front end of the fixing seat. Preferably, a first groove is provided at the connection between the elastic baffle 25 and the main body at the front end of the fixing seat. The first groove can provide a certain deformation space for the elastic baffle 25, so that it can bend or rebound more easily when subjected to force, thereby enhancing the elastic effect. The shape and position of the first groove can guide the bending direction of the elastic baffle 25, limit its range of movement, and enable it to move along a predetermined trajectory during operation. The provision of a groove at the connection can avoid stress concentration at a certain point, thereby improving the fatigue life of the structure and preventing the elastic baffle 25 from cracking or breaking during multiple bending processes.

[0033] A fixed platform engaging surface 211 is provided on the fixed platform 21. A ramp 22 and a ramp sinking groove 223 are provided on the rear end of the fixed seat. One end of the ramp 22 is connected to the rear end body of the fixed seat. The ramp sinking groove 223 is used to provide elastic activity space for the ramp 22. A ramp engaging surface 221 and a ramp constraint surface 222 are provided on the ramp 22. The ramp engaging surface 221 is close to the fixed platform 21. The ramp constraint surface 222 is close to the fixed seat inner engaging surface 26. A fixed seat inner engaging surface 26 is provided on the end surface of the rear end of the fixed seat. The interior of the fixed seat 2 is hollow and is provided with a fixed seat inner clamping strip 27. The fixed seat inner clamping strip 27 is used to clamp with the conveying rod 5. Preferably, the ramp 22 and the ramp sinking groove 223 are provided in one group each above and below.

[0034] like Figure 4 、 Figure 5 and Figure 6 As shown, the tightening tube 3 is hollow inside and can be used to accommodate the clip assembly and the fixing seat 2. A baffle 33 is provided at the front end of the tightening tube 3. A tightening tube boss 31 is provided on the side of the tightening tube 3, and the rear end of the tightening tube boss 31 forms a boss clamping surface 311. The front end of the tightening tube boss 31 is provided with a boss sliding surface 313. The tightening tube 3 body is provided with a boss sinking groove 312. The boss sinking groove 312 provides space for the movement of the tightening tube boss 31. One end of the tightening tube boss 31 is connected to the tightening tube 3 body.

[0035] The rear end of the tightening tube 3 is provided with a tightening tube inner clamping platform 32. The tightening tube inner clamping platform 32 is provided with a clamping platform inner connection surface 321. The outer end surface of the rear end of the tightening tube 3 forms a clamping platform outer connection surface 322. The interior of the tightening tube 3 cavity is provided with a clamping platform limit surface 323.

[0036] Preferably, the tightening tube 3 is a cylindrical structure.

[0037] like Figure 7 and Figure 8As shown, the storage tube 4 is provided with a curved portion 41, a retaining ring 42, and a clamping platform 43. The retaining ring 42 forms a retaining ring surface 421 inside the storage tube 4. The storage tube 4 is an elastic, rigid tube with a spiral cutout on its surface, forming the curved portion 41. The clamping platform 43 forms a limiting surface 432 and a clamping surface 431 inside the storage tube 4. The clamping platform 43 forms a tapered through-hole inside the storage tube 4, and the surface of the tapered through-hole forms the clamping surface 431.

[0038] Preferably, the clamping platform 43, the curved portion 41, and the retaining ring 42 are arranged in sequence from front to back. The retaining ring 42 is further provided with a curved portion at its rear end.

[0039] The storage clip tube 4 is an elastic hard tube with a spiral cutout on its surface as a bending portion 41 , which can bend at a larger angle and has the ability to pass through corners.

[0040] An internal clamping strip 27 is provided inside the fixing seat 2 for clamping the delivery rod 5. When the delivery rod 5 rotates, it can drive the fixing seat 2 to rotate, thereby driving the clip 1 to rotate, so that the clip assembly has a rotation function and can accurately stop bleeding tissue.

[0041] like Figure 9 As shown, a deformation portion 51 is provided at the front end of the conveying rod 5 , and a pulling clamping surface 511 and a rotating clamping surface 512 are provided on the deformation portion 51 .

[0042] The working principle of the continuous hemostatic clamp capable of turning and rotating provided by the present invention is: like Figure 10 As shown, when not in use, the second hemostatic clip assembly is housed within the storage tube 4, with the retaining ring surface 421 capable of limiting the position of the second hemostatic clip assembly. The main body of the delivery rod 5 passes through the pull rod through-hole 12 of the clip 1 of the second hemostatic clip assembly, the fixing seat 2 of the second hemostatic clip assembly, and the tightening tube 3 of the second hemostatic clip assembly. Furthermore, the first hemostatic clip assembly can be connected to the storage tube 4 via the clamping platform 43. The first hemostatic clip assembly is housed within the front end of the storage tube 4, with the deformable portion 51 inserted into the fixing seat 2 of the first hemostatic clip assembly.

[0043] like Figure 11As shown, the first release process of the first hemostatic clip assembly is as follows: when the entire device enters the clamp channel, the clip 1 is in a retracted state. Subsequently, the delivery rod 5 is pushed to open the clip 1 of the first hemostatic clip assembly. The delivery rod 5 is then rotated to adjust the angle of the clip 1 of the first hemostatic clip assembly. This is achieved by: an elastic baffle 25 is provided on the fixed base 2 of the first hemostatic clip assembly. When the delivery rod 5 is pushed, the delivery rod 5 contacts the elastic baffle 25. Simultaneously, the baffle 33 of the tightening tube 3 constrains the fixed base 2 to prevent it from separating from the tightening tube 3. Therefore, the tightening tube 3 can be pushed out of the clip storage tube 4. Simultaneously, the elastic force of the clip 1 causes the tightening tube 3 to be ejected, and the clip 1 is opened. Rotating the delivery rod 5 causes the rotating latching surface 512 of the delivery rod 5 to engage with the latching strip 27 within the fixed base, thereby rotating the clip 1 and achieving alignment with the target tissue.

[0044] Then, the delivery rod 5 is pulled to complete the locking and releasing of the clip 1. The specific implementation process includes the following steps: The second release process of the first hemostatic clip assembly is as follows: The fixed base 2 is provided with an internal retaining platform 26. The delivery rod 5 is pulled, and the pull-engaging surface 511 of the delivery rod 5 engages with the internal retaining platform 26, preventing the delivery rod 5 from being separated from the fixed base 2. The tightening tube 3 is provided with a tightening tube boss 31, and the storage tube 4 is provided with a retaining platform 43. When the delivery rod 5 is pulled, the boss retaining surface 311 of the tightening tube boss 31 engages with the retaining surface 432 of the retaining platform 43, and the tightening tube 3 stops moving.

[0045] like Figure 12 As shown, the third release process of the first hemostatic clip assembly is as follows: the fixing base 2 is provided with a ramp 22. The tightening tube 3 is provided with a tightening tube internal clamping platform 32. Under the pull of the delivery rod 5, the fixing base 2 drives the clip 1 to tighten, the ramp engaging surface 221 contacts the tightening tube internal clamping platform internal surface 321, and the ramp 22 begins to sink into the elastic retaining plate sinking groove 223.

[0046] like Figure 13 As shown, the fourth release process of the first hemostatic clip assembly is as follows: Continue pulling the delivery rod 5, and the inclined platform 22, squeezed by the clamping platform 32 in the tightening tube and driven by the delivery rod 5, escapes the tightening tube 3. That is, the inclined platform 22 passes through the clamping platform 32 in the tightening tube. Subsequently, the fixed platform engaging surface 211 of the fixed platform 21 engages with the clamping platform limiting surface 323 of the clamping platform 32 in the tightening tube, and the inclined platform restraining surface 222 engages with the clamping platform external surface 322, thus completing the locking of the clip 1. The mounting platform 23 of the fixed base can support the tightening tube boss 31 in the tightening tube 3 during the pulling process, preventing it from slipping off the clamping platform 43 of the storage tube 4.

[0047] like Figure 14As shown, the fifth release process of the first hemostatic clip assembly is: continue to pull the delivery rod 5 with force, the deformation portion 51 of the delivery rod 5 is deformed under the squeezing of the clamping table 26 in the fixing seat, and detaches from the fixing seat 2, completing the release of the first hemostatic clip assembly as a whole.

[0048] Then, the second hemostatic clip assembly is released. The specific implementation process is as follows: 1. After the first hemostatic clip assembly is released, the delivery rod 5 is continuously pulled. It passes through the elastic retaining plate 25 of the second hemostatic clip assembly's retaining seat 2 and enters the interior of the retaining seat 2. The storage tube 4 is provided with a curved portion 41 for wide-angle bending. The external surface 322 of the retaining plate 32 within the tightening tube of the second hemostatic clip assembly contacts the retaining ring surface 421 of the retaining ring 42, which restricts further movement of the tightening tube 3. This can be considered the first release process of the second hemostatic clip assembly.

[0049] 2. Push the delivery rod 5, pushing the tightening tube 3 to the engaging platform 43 of the storage tube 4. At this point, the boss-indented surface 313 of the tightening tube boss 31 engages with the engaging surface 431 of the engaging platform 43. Because the tightening tube boss 31 is surrounded by a lower boss sinking groove 312, when the delivery rod 5 is pushed, the tightening tube boss 31 is squeezed by the engaging platform 43 and sinks through the storage tube 4. Subsequently, the clip 1 opens under its own elastic force. This can be understood as the second release process of the second hemostatic clip assembly.

[0050] 3. The remaining operations are the same as when releasing the first hemostatic clip assembly. Specifically, they can be summarized as follows: (1) The delivery rod 5 is rotated, and the rotating clamping surface 512 of the delivery rod 5 is engaged with the clamping strip 27 in the fixed seat, thereby driving the clip 1 to rotate, thereby achieving the purpose of aligning the target tissue; this can be understood as the third process of releasing the second hemostatic clip assembly.

[0051] (2) Pull the delivery rod 5. The pulling engagement surface 511 of the delivery rod 5 engages with the engagement platform 26 in the fixing seat, preventing the delivery rod 5 from separating from the fixing seat 2. The tightening tube 3 is provided with a tightening tube boss 31, and the storage clip tube 4 is provided with a engagement platform 43. When the delivery rod 5 is pulled, the boss engagement surface 311 of the tightening tube boss 31 engages with the engagement surface 432 of the engagement platform 43, restricting the tightening tube 3 from further movement. This can be understood as the fourth process of releasing the second hemostatic clip assembly.

[0052] (3) Under the pull of the delivery rod 5, the fixing seat 2 drives the clip 1 to tighten, the inclined platform engaging surface 221 contacts the inner engaging surface 321 of the tightening tube, and the inclined platform 22 begins to sink into the elastic baffle sinking groove 223. This can be understood as the fifth process of releasing the second hemostatic clip assembly.

[0053] (4) Continue to pull the conveying rod 5. The inclined platform 22 escapes from the tightening tube 3 under the squeezing of the clamping platform 32 in the tightening tube and the drive of the conveying rod 5. That is, the inclined platform 22 passes through the clamping platform 32 in the tightening tube. Subsequently, the fixed platform clamping surface 211 of the fixed platform 21 is clamped with the clamping platform limit surface 323 of the clamping platform 32 in the tightening tube, and the inclined platform constraint surface 222 is clamped with the clamping platform external surface 322. At this time, the locking of the clip 1 is completed. The mounting platform 23 of the fixed seat can support the tightening tube boss 31 in the tightening tube 3 during the pulling process to prevent it from slipping off the clamping platform 43 of the storage clamp tube 4. This can be understood as the sixth process of releasing the second hemostatic clip assembly.

[0054] (5) Continue to pull the delivery rod 5 with force. The deformable portion 51 of the delivery rod 5 is deformed under the pressure of the clamping table 26 in the fixed seat and detaches from the fixed seat 2, completing the release of the second hemostatic clip assembly. This can be understood as the seventh release process of the second hemostatic clip assembly.

[0055] The beneficial effects of the continuous hemostatic clamp capable of turning and rotating provided by the present invention are: 1. The fixed seat mounting platform can support the tightening tube boss during the pulling process to prevent it from slipping off the storage tube clamping platform, thereby increasing the structural stability; 2. The clamp can be controlled by the internal clamping method of the fixing base, which is easy to operate; 3. The locking of the clip is achieved by tightening the tube, the fixing platform of the fixing seat and the inclined platform, which is stable and reliable; 4. The clip is released automatically and is not easy to tear tissue; 5. The curved part of the conveying rod 5 is hollowed out, which is elastic and reusable; 6. The limiting method of the storage clip tube 4 can not only prevent the hemostatic clip assembly from re-entering, but also help the hemostatic clip assembly fall off. Example

[0056] This embodiment differs from the first embodiment in that: The two Y-shaped arms at the front of the conveyor rod 5 are each equipped with an electromagnet. By adjusting the direction of the current flowing through the electromagnet, the direction of the electromagnet's magnetic field can be controlled. To quickly and easily detach the conveyor rod 5 from its mounting, the electromagnets on the two arms can be attracted to each other, causing the two Y-shaped arms at the front of the conveyor rod 5 to move closer together and reduce the angle between them, thus achieving rapid detachment.

[0057] When pushing or pulling the conveyor rod 5, it is hoped that the conveyor rod 5 will drive other components to move. At this time, the two Y-shaped arms at the front end of the conveyor rod 5 need to be stably connected to the other components, and the conveyor rod 5 is not allowed to slip. Therefore, the electromagnets on the two arms can be made to repel each other, so that the two Y-shaped arms at the front end of the conveyor rod 5 move away from each other, and the angle between the two Y-shaped arms becomes larger, so that the conveyor rod 5 can perform the transmission task better and more stably.

[0058] In addition, after all the hemostatic clip components are released, the delivery rod 5 needs to be withdrawn from the human body. At this time, if the two Y-shaped arms at the front end of the delivery rod 5 can be brought closer to each other through an electromagnet, the probability of the two Y-shaped arms damaging human tissue can be reduced.

[0059] Furthermore, a magnet is provided at the rear end of the fixing base. The magnet and the electromagnet provided at the rear end of the fixing base are capable of interacting through magnetic force. After the hemostatic clip assembly is fully released, there is a certain probability that the position of the hemostatic clip assembly is not ideal and needs to be adjusted. In this case, one of the two electromagnets on the Y-shaped support arms at the front end of the delivery rod 5 can be connected. Through the magnetic force between the electromagnet and the magnet, the position of the hemostatic clip assembly can still be fine-tuned after the hemostatic clip assembly is fully released. Example

[0060] This embodiment differs from the first embodiment in that: The front end of the clip 1 is coated with a coating of a variable friction coefficient material. The variable friction coefficient material can be a temperature-sensitive material, such as thermosensitive polyurethane. When the temperature rises, the thermosensitive polyurethane softens, its surface becomes more conformable to the tissue, and the friction is enhanced. The variable friction coefficient material can also be a pH-responsive material. For example, chitosan. The response characteristic of chitosan is that it swells in an acidic environment (pH < 6.5) to form a colloid, which increases the friction and is more suitable for hemostasis of gastric tissue. Chitosan has the characteristic of strong biocompatibility. The pH-responsive material can also be a polyacrylic acid coating, which swells in an alkaline environment (such as the pH 7-8 environment in the intestine) and increases the friction. Different coatings can be used to enhance the hemostatic effect, and clamps that can be used in different parts of the digestive tract can be developed to achieve site-specific friction adjustment. The variable friction coefficient material is one or more of a temperature-sensitive material or a pH-responsive material.

[0061] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A continuous hemostatic clip capable of turning and rotating, characterized in that: It includes multiple hemostatic clip assemblies, a storage clip tube and a conveying rod. The hemostatic clip assembly is detachably connected to the storage clip tube, and the hemostatic clip assembly is detachably connected to the conveying rod. The hemostatic clip assembly can be arranged inside the storage clip tube. The hemostatic clip assembly includes a clip assembly, a fixing seat and a tightening tube. The clip assembly is connected to the fixing seat, and the fixing seat is sleeved inside the tightening tube. The storage clip tube is provided with a bending portion, a retaining ring and a clamping platform. The conveying rod is provided with a deformation portion, and the deformation portion is provided with a pulling clamping surface and a rotating clamping surface.

2. The continuous hemostatic clip capable of turning and rotating according to claim 1, characterized in that: The retaining ring forms a retaining ring surface inside the storage clip tube. The storage clip tube is an elastic hard tube with a spiral cut on its surface. The clamping platform forms a limiting surface and a clamping surface inside the storage clip tube.

3. The continuous hemostatic clip capable of turning and rotating according to claim 1, characterized in that: The fixing seat includes a front end of the fixing seat, a fixing platform and a rear end of the fixing seat. The front end of the fixing seat is provided with a mounting platform, a mounting surface and an elastic baffle. The mounting platform and the mounting surface can be used to connect the clip; the front end of the fixing seat is provided with an elastic baffle sinking groove for accommodating the elastic baffle.

4. The continuous hemostatic clip capable of turning and rotating according to claim 3, characterized in that: A fixed platform clamping surface is provided on the fixed platform, a ramp and a ramp sinking groove are provided on the rear end of the fixed seat, one end of the ramp is connected to the main body at the rear end of the fixed seat, a ramp clamping surface and a ramp constraint surface are provided on the ramp platform, the ramp clamping surface is close to the fixed platform, and a fixed seat inner clamping platform is provided on the end surface of the rear end of the fixed seat, and the ramp constraint surface is close to the fixed seat inner clamping platform; the interior of the fixed seat is hollow, and a fixed seat inner clamping strip for clamping with the conveying rod is provided inside.

5. The continuous hemostatic clip capable of turning and rotating according to claim 3 or 4, characterized in that: The body at the front end of the fixing seat, the body at the rear end of the fixing seat, the fixing platform and the mounting platform are cylindrical structures, and the mounting surface is a plane, and the mounting surface is arranged on the body at the front end of the fixing seat.

6. The continuous hemostatic clip capable of turning and rotating according to claim 1, characterized in that: A tightening tube boss is provided on the side surface of the tightening tube, a boss clamping surface is formed at the rear end of the tightening tube boss, a boss sliding surface is provided at the front end of the tightening tube boss, and a boss sinking groove is provided on the tightening tube body.

7. The continuous hemostatic clip capable of turning and rotating according to claim 1 or 6, characterized in that: The front end of the tightening tube is provided with a baffle, the rear end of the tightening tube is provided with a tightening tube inner clamping platform, the tightening tube inner clamping platform is provided with a clamping platform inner connection surface, the rear end outer end surface of the tightening tube is formed with a clamping platform outer connection surface, and the interior of the tightening tube cavity is provided with a clamping platform limiting surface.

8. The continuous hemostatic clip capable of turning and rotating according to claim 1, characterized in that: The clip assembly includes a clip, a mounting hole is provided at the rear end of the clip, a clamping portion is provided at the front end of the clip, the clamping portion is connected to the clip body, a pull rod through hole is provided on the clamping portion, and the outer end surface of the clamping portion is an engaging surface.

9. The continuous hemostatic clip capable of turning and rotating according to claim 8, characterized in that: The front end of the clip is coated with a coating of a variable friction coefficient material, and the variable friction coefficient material is one or more of a temperature-sensitive material and a pH-responsive material.

10. The continuous hemostatic clip capable of turning and rotating according to claim 3, characterized in that: The two Y-shaped arms at the front end of the conveying rod are respectively provided with electromagnets. The magnetic field direction of the electromagnets is variable. The electromagnets can change the angles of the two arms at the front end of the conveying rod. Any of the electromagnets can be turned on individually. A magnet is provided at the rear end of the fixing seat.

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