Customizable shapeable and detachable minimally invasive hemostatic forceps

Abstract

The utility model discloses a kind of self-defining plastic shape and detachable minimally invasive hemostatic forceps, it is related to the field of medical apparatus, it includes forceps head, gripping portion and flexible connecting piece, flexible connecting piece is located between forceps head and gripping portion, steel wire is equipped between forceps head and gripping portion, a plurality of connecting blocks are equipped on steel wire, connecting block one end is equipped with ball head, other end is equipped with arc face, ball head is located in adjacent arc face, locking portion for tightening steel wire is equipped on gripping portion, locking portion includes handle, connecting main body and clamping seat, handle is sleeved on the outside of connecting main body, threaded rod is equipped in handle, clamping seat is located on the side of threaded rod close to steel wire, steel wire close to the side of gripping portion is equipped with steel wire connector, steel wire connector close to the side of forceps head is equipped with limit block. The present application has the effect of improving the stability of hemostatic forceps in surgical operation.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a customizable and detachable minimally invasive hemostatic forceps. Background Technology

[0002] Currently, hemostatic forceps are an essential tool in surgical procedures, used to clamp and stop bleeding in various surgical wounds. They play a vital role in protecting patient safety and facilitating surgical procedures for doctors.

[0003] Related technology can be found in Chinese Patent No. CN219070489U, which discloses a novel endoscopic hemostatic forceps. The forceps include a handle, with a forceps rod movably connected to one end of the handle. The forceps rod has multiple support sections, and the connection ports of two adjacent support sections are interference-fitted. A rotating pin is installed between the handle and the forceps rod to adjust the angle between them. A forceps assembly is detachably installed on the side of the forceps rod away from the handle. This invention makes operation more convenient and labor-saving for physicians during surgery through the telescopic and adjustable forceps rod and the adjustable angle forceps rod; the replaceable forceps head expands the functional range of the hemostatic forceps.

[0004] Regarding the aforementioned technologies, the head and handle of the hemostat are rotatably connected by a rotating pin. The two are relatively fixed by the friction between them and the rotating pin. During use, the set shape may become unstable due to the rebound force of the wound tissue or surgical adjustments, affecting the surgical operation and hindering the stability of the hemostat during surgical procedures. Utility Model Content

[0005] To improve the stability of hemostats during surgical procedures, this application provides a customizable and detachable minimally invasive hemostat.

[0006] This application provides a customizable and detachable minimally invasive hemostat, employing the following technical solution: A customizable and detachable minimally invasive hemostat includes a grip, a flexible transmission component, and a forceps head. The flexible transmission component connects the grip and the forceps head, and the grip controls the opening and closing of the forceps head via the flexible transmission component. The flexible transmission component is radially flexible. The hemostat also includes a steel wire rope located between the forceps head and the grip. One end of the steel wire rope near the forceps head has a connecting post connected to the forceps head, and the other end has a toothed connector. The steel wire rope passes through the toothed connector along its length and is slidably connected to it. The toothed connector is connected to the end of the grip near the forceps head. Several connecting blocks are provided between the columns. A ball head is fixed on one side of the connecting block, and an arc-shaped surface adapted to the ball head is opened on the other side. Between two adjacent connecting blocks, the ball head of any connecting block is located in the arc-shaped surface of the other connecting block and fits against the arc-shaped surface. Both the connecting blocks and the ball head have movable cavities along the length of the wire rope. The wire rope passes through all the movable cavities in sequence. The movable cavities provide space for the radial deflection of the wire rope and the connecting blocks. The diameter of the movable cavity gradually increases from the middle to both ends, and the smallest diameter of the movable cavity is adapted to the outer diameter of the wire rope. The gripping part is provided with a locking part for tightening the wire rope.

[0007] By adopting the above technical solution, the user clamps or releases the gripping part, and the flexible transmission component drives the forceps head to open and close. By adjusting the contact angle between the ball head and the arc surface, the gripping part and the forceps head are adjusted to the required angle. The movable cavity accommodates and limits the radial displacement of the steel wire. The operating locking part tightens the steel wire rope. The connecting column and the toothed connector cooperate to limit the axial displacement of the connecting block. At the same time, under the action of the tightened steel wire rope, the adjacent connecting blocks abut against each other, thereby fixing the angle between the forceps head and the gripping part, which helps to improve the stability of the hemostat operation.

[0008] Optionally, the gripping part has a guide cavity, a toothed connector is located at the end of the guide cavity near the pliers head, the wire rope passes through the toothed connector and extends into the guide cavity, and a wire connector is fixed to the end of the wire rope away from the connecting post. The wire connector is located in the guide cavity and slides along the axis of the guide cavity. The locking part includes a handle, a connecting body and a locking seat. The connecting body is connected to the outside of the gripping part and communicates with the guide cavity. The handle is provided with a threaded rod, which passes through the connecting body and is threadedly connected to the connecting body. The locking seat is located on the side of the threaded rod near the wire rope. When the threaded rod rotates, it drives the locking seat to approach the wire connector. When the locking seat contacts the wire connector, it pushes the wire connector away from the pliers head.

[0009] By adopting the above technical solution, under the support of the gripping part, the guide cavity guides and limits the wire connector, the connecting body guides and limits the threaded rod vertically, and rotating the handle causes the threaded rod to move vertically. The threaded rod pushes the clamping seat closer to or away from the wire connector, thereby tightening or loosening the wire rope, thereby releasing or strengthening the fixation between the connecting blocks, and finally achieving the fixation or restoration of the angle of the clamp head and the gripping part, which is conducive to improving the convenience of device operation.

[0010] Optionally, the handle includes a threaded sleeve and a rotating plate. The threaded sleeve is sleeved on the outside of the connecting body, and the threaded rod is coaxially disposed on the inner wall of the threaded sleeve and rotates synchronously with the threaded sleeve. The rotating plate is located on the outside of the threaded sleeve, and a limiting pin is provided between the rotating plate and the threaded sleeve. An annular groove is provided on the outer wall of the connecting body along the circumference. The width of the annular groove is greater than the diameter of the limiting pin. The limiting pin passes through the rotating plate and the threaded sleeve in sequence and is located in the annular groove.

[0011] By adopting the above technical solution, the annular groove supports and limits the limiting pin, thereby preventing the threaded sleeve from completely detaching from the connecting body. The rotating plate is easy for the user to hold and rotate. Under the connection of the limiting pin, when the user rotates the rotating plate, the rotating plate drives the threaded rod to rotate synchronously through the threaded sleeve. The limiting pin makes the threaded sleeve and the rotating plate detachably connected, which facilitates cleaning of the inside of the connecting body and the handle, and helps to improve the cleaning convenience of the hemostat.

[0012] Optionally, the connecting body is perpendicular to the wire connector, and a limiting block is coaxially fixedly connected to the side of the wire connector near the clamp head. The lower end of the snap-fit ​​seat is provided with a first inclined surface. When the first inclined surface contacts the limiting block, it applies a pushing force away from the clamp head to the limiting block. The limiting block is provided with a second inclined surface corresponding to the first inclined surface.

[0013] By adopting the above technical solution, the connecting body and the wire connector are set vertically, so that the rotating handle is close to the user's hand, making it convenient for the user to adjust. The locking seat applies a pushing force through a pair of inclined limit blocks, while the second inclined surface helps to increase the contact area between the limit blocks and the locking seat, improve the pushing stability of the locking seat on the wire connector, and thus realize the tightening or loosening of the wire rope, which helps to improve the ease of use of the wire rope.

[0014] Optionally, the lower end of the snap-fit ​​seat is provided with a clearance groove adapted to the wire rope. The snap-fit ​​seat is rotatably connected to the threaded rod around the axis of the threaded rod, and a second limit pin is provided on the outer circle of the snap-fit ​​seat. The connecting body is provided with a second limit groove along the length direction of the threaded rod. The second limit pin is located in the second limit groove and slides along the length direction of the second limit groove.

[0015] By adopting the above technical solution, during the vertical movement of the clamping seat, the second limiting groove guides and limits the first limiting pin, so that when the clamping seat moves along the axial direction driven by the threaded rod, it prevents the clamping seat from rotating synchronously with the threaded rod. This ensures that the clamping seat is always directly opposite the wire rope as it approaches the wire rope. When the clamping seat moves to the wire rope, it avoids the wire rope through the clearance groove, thereby expanding the range of motion of the clamping seat and improving the stability of the hemostat operation.

[0016] Optionally, the cross-section of the wire connector along the radial direction is polygonal, a collar is sleeved on the outside of the wire connector, and the inner wall of the collar fits against the outer edge of the wire connector. The collar has a slot along the length direction, and the gripping part is provided with a locking pin. The locking pin passes through the gripping part and extends into the slot, and the locking pin fits against the inner wall of the slot.

[0017] By adopting the above technical solution, the locking pin limits the circumferential displacement of the collar through the slot, thereby restricting the circumferential rotation of the wire rope connector. This, in turn, restricts the rotation of the wire rope connector by the collar, which helps to improve the working stability of the wire rope.

[0018] Optionally, the toothed connector includes a toothed tube and a threaded tube, the toothed tube and the threaded tube are coaxially and fixedly connected, the wire rope passes through the toothed tube and the threaded tube in sequence, and the threaded tube is inserted into the guide cavity and threadedly connected to the inner wall of the guide cavity.

[0019] By adopting the above technical solution, the toothed tube is easy for the user to hold and rotate, which in turn makes it easy to remove the threaded tube, thereby removing the wire rope from the guide cavity and facilitating the cleaning of the inside of the hemostat, thus improving the convenience of disassembling and cleaning the hemostat.

[0020] Optionally, a lead screw is sleeved on the outside of the wire rope. The lead screw is located on the side of the threaded tube near the limiting block. When the lead screw abuts against the threaded tube, the wire rope between the toothed tube and the connecting column is in a slack state.

[0021] By adopting the above technical solution, when adjusting the angle between the connecting columns, the lead screw limits the displacement of the wire rope along the axis of the guide cavity, reducing the probability of the wire rope detaching from the guide cavity and improving the stability of the device.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The user clamps or releases the grip, which drives the forceps head to open and close through the flexible transmission component. By adjusting the contact angle between the ball head and the arc surface, the grip and the forceps head are adjusted to the required angle. The movable cavity accommodates and limits the radial displacement of the steel wire. The operating locking part tightens the steel wire rope. The connecting column and the toothed connector cooperate to limit the axial displacement of the connecting block. At the same time, under the action of the tightened steel wire rope, the adjacent connecting blocks abut against each other, thereby fixing the angle between the forceps head and the grip, which helps to improve the stability of the hemostat operation. 2. Under the support of the gripping part, the guide cavity guides and limits the wire connector, and the connecting body guides and limits the threaded rod vertically. Rotating the handle causes the threaded rod to move vertically, and the threaded rod pushes the clamping seat closer to or away from the wire connector, thereby tightening or loosening the wire rope, thereby releasing or strengthening the fixation between the connecting blocks, and finally fixing or restoring the angle of the clamp head and the gripping part, which helps to improve the convenience of device operation. 3. The annular groove supports and limits the first limiting pin, thereby preventing the threaded sleeve from completely detaching from the connecting body. The rotating plate is easy for the user to hold and rotate. Under the connection of the first limiting pin, when the user rotates the rotating plate, the rotating plate drives the threaded rod to rotate synchronously through the threaded sleeve. The first limiting pin makes the threaded sleeve and the rotating plate detachably connected, which facilitates cleaning of the inside of the connecting body and the handle, and helps to improve the cleaning convenience of the hemostat. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a customizable and detachable minimally invasive hemostat.

[0024] Figure 2 This is an exploded schematic diagram of Example 1.

[0025] Figure 3 This is a cross-sectional schematic diagram of the locking part.

[0026] Figure 4 This is a schematic diagram designed to highlight the location of the wire connector.

[0027] Explanation of reference numerals in the attached drawings: 1. Grip part; 11. Guide cavity; 111. Fixed cavity; 1111. Locking pin; 112. Mounting cavity; 12. Steel ball pressure plate; 121. Steel ball hole; 122. Steel ball; 123. Glass ball screw; 124. Positioning pin; 13. Rotating pin; 2. Pliers head; 21. Fixed pliers; 211. Guide connector; 212. Transmission plate; 22. Moving pliers; 3. Flexible transmission component; 31. Metal tube; 32. Moving tube; 321. Undercut groove; 33. Limiting ring; 34. Spring; 4. Steel wire rope; 41. Connecting block; 411. Ball head; 412. Arc surface; 413. Movable cavity; 42. Steel wire connector; 43. Limiting block; 431. Inclined surface two; 44. Lead screw; 45. Collar; 451. Slot; 46. Toothed connector; 461. Toothed tube; 462. Threaded tube; 5. Locking part; 51. Rotating handle; 511. Rotating plate; 512. Limiting pin one; 513. Threaded sleeve; 514. Threaded rod; 52. Connecting body; 521. Annular groove; 522. Limiting groove two; 53. Snap-fit ​​seat; 531. Inclined surface one; 532. Limiting pin two. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] This application discloses a customizable and detachable minimally invasive hemostatic forceps. Example

[0030] Reference Figure 1 and Figure 2 A customizable and detachable minimally invasive hemostat includes a forceps head 2, a gripping part 1, and a flexible transmission component 3. The flexible transmission component 3 connects the forceps head 2 and the gripping part 1. The user clamps or releases the gripping part 1 to open or close the forceps head 2. A bendable metal tube 31 is sleeved on the outside of the flexible transmission component 3. The relative position of the gripping part 1 and the forceps head 2 can be adjusted by adjusting the metal tube 31, which helps to improve the ease of operation of the hemostat.

[0031] Reference Figure 1 and Figure 2 The device includes a fixed clamp 21 and a moving clamp 22. A guide connector 211 is installed inside the fixed clamp 21. The flexible transmission component 3 is fixedly connected to the guide connector 211. A transmission plate 212 is connected between the guide connector 211 and the moving clamp 22. When the guide connector 211 is pulled by the flexible transmission component 3, it moves laterally along the fixed clamp 21. At the same time, the transmission plate 212 pulls the moving clamp 22 closer to or away from the fixed clamp 21, which helps to ensure the continuity of the movement process of the fixed clamp 21 and the moving clamp 22.

[0032] Reference Figure 2 and Figure 3A spring 34 is sleeved on the side of the flexible transmission component 3 near the clamp head 2. In its natural state, the spring 34 pushes the guide connector 211 away from the flexible transmission component 3. When the user relaxes the grip part 1, the guide connector 211 is always close to the moving clamp 22. At this time, the connecting plate does not move, and the fixed clamp 21 and the moving clamp 22 are opened to the maximum. When the operator clamps the grip part 1, the spring 34 returns to its original position, the guide connector 211 moves closer to the flexible transmission component 3, and the transmission plate 212 pulls the moving clamp 22 closer to the fixed clamp 21 and makes it fit together, which helps to improve the ease of operation of the device.

[0033] Reference Figure 1 and Figure 2 The gripping part 1 has a guide cavity 11, which includes a fixed cavity 111 and a mounting cavity 112. The flexible transmission member 3 has a moving tube 32 on the side away from the pliers head 2. The moving tube 32 is sleeved on the outside of the flexible transmission member 3 and is slidably connected to the flexible transmission member 3. The moving tube 32 is located inside the mounting cavity 112 and fits against the inner wall of the mounting cavity 112. The side of the moving tube 32 outside the mounting cavity 112 has a limiting part with an increased diameter. The limiting part is used to prevent the moving tube 32 from completely passing through the mounting cavity 112.

[0034] Reference Figure 2 and Figure 3 The gripping part 1 is provided with a steel ball 122 locking assembly for fixing the moving tube 32. The steel ball 122 locking assembly includes a rotating pin 13 and a steel ball pressure plate 12. The rotating pin 13 passes through the steel ball pressure plate 12 and the gripping part 1 in sequence and is rotatably connected to the steel ball pressure plate 12. The steel ball pressure plate 12 has a steel ball hole 121 on the side near the gripping part 1. The steel ball hole 121 includes a deep steel ball hole 121 and a shallow steel ball hole 121. The deep steel ball hole 121 and the shallow steel ball hole 121 are interconnected. A steel ball 122 is provided in the steel ball hole 121. The outer circle of the moving tube 32 has an undercut groove 321 that is adapted to the steel ball 122 along its own circumference. The steel ball 122 is locked into the undercut groove 321 under the pressure of the steel ball pressure plate 12 to fix the moving tube 32. At this time, the limiting part abuts against the gripping part 1, and the moving tube 32 is completely positioned along the circumference. The rotating steel ball pressure plate 12 causes the steel ball 122 to slide from the shallow steel ball hole 121 to the deep steel ball hole 121 under the action of gravity. The limit between the moving tube 32 and the mounting cavity 112 is released, and the moving tube 32 can be moved out from the mounting cavity 112. This facilitates the disassembly and cleaning of the flexible transmission component 3 and improves the convenience of device installation.

[0035] Reference Figure 2 and Figure 3The gripping part 1 is provided with a glass ball screw 123 and a positioning pin 124 on the side near the steel ball pressure plate 12. The steel ball pressure plate 12 is provided with a glass ball screw 123 positioning hole corresponding to the glass ball screw 123 and a positioning pin 124 hole corresponding to the positioning pin 124. When the steel ball pressure plate 12 is rotated, the positioning pin 124 is located in the positioning pin 124 hole and slides along the positioning pin 124 hole, so that the glass ball screw 123 and the positioning hole of the glass ball screw 123 are aligned, which helps to improve the stability of the rotation of the steel ball pressure plate 12 and the accuracy of the glass ball screw 123 being inserted into the positioning hole of the glass ball screw 123.

[0036] Reference Figure 2 The flexible transmission component 3 is coaxially connected to the side of the mounting cavity 112 away from the clamp head 2 with a limit ring 33. When the clamp head 2 is open, the limit ring 33 abuts against the end of the moving tube 32 away from the clamp head 2. When the moving tube 32 is locked, the limit ring 33 prevents the flexible transmission component 3 from leaving the mounting cavity 112, which helps to improve the stability of the device.

[0037] Reference Figure 1 and Figure 3 A steel wire rope 4 is provided between the gripping part 1 and the clamp head 2. A connecting post is fixedly provided at one end of the steel wire rope 4 near the clamp head 2. The connecting post is fixedly connected to the clamp head 2. A toothed connector 46 is provided at the other end of the steel wire rope 4. The toothed connector 46 is sleeved on the outside of the steel wire rope 4 and slidably connected to the steel wire rope 4. The toothed connector 46 and the connecting post cooperate to support and limit the steel wire rope 4.

[0038] Reference Figure 2 and Figure 3 The toothed connector 46 includes a toothed tube 461 and a threaded tube 462. The threaded tube 462 is threadedly connected to the inner wall of the fixed cavity 111. The steel wire rope 4 passes through the toothed tube 461 and the threaded tube 462 in sequence and enters the fixed cavity 111. The toothed tube 461 is easy for the user to hold and rotate, and the threaded tube 462 can be removed from the fixed cavity 111, so that the steel wire rope 4 can be removed from the fixed cavity 111, which facilitates the disassembly and cleaning of the device.

[0039] Reference Figure 2 and Figure 3 The wire rope 4 is provided with multiple connecting blocks 41. All connecting blocks 41 are located between the connecting post and the toothed tube 461. One end of the connecting block 41 along the length of the wire rope 4 is provided with a ball head 411, and the other end is provided with an arc-shaped surface 412 adapted to the ball head 411. The ball head 411 is located in the arc-shaped surface 412 and fits against the inner wall of the arc-shaped surface 412. Both the connecting block 41 and the ball head 411 have movable cavities 413 opened along the length of the wire rope 4. The wire rope 4 passes through all the movable cavities 413 in sequence. The connecting post and the toothed connector 46 cooperate to limit the axial displacement of the connecting block 41.

[0040] Reference Figure 2 and Figure 3 The diameter of the movable cavity 413 gradually increases from the middle to both ends, and the middle part of the movable cavity 413 is adapted to the outer diameter of the wire rope 4, which facilitates the containment and limiting of the wire rope 4, provides room for the radial displacement of the wire rope 4, thereby increasing the adjustable angle between the wire rope 4 and the connecting block 41, and ultimately increasing the angle adjustment range between the gripping part 1 and the clamp head 2, which is beneficial to improving the applicability of the device.

[0041] Reference Figure 3 and Figure 4 A wire connector 42 is fixedly installed on the side of the wire rope 4 away from the connecting post. The wire connector 42 is sleeved on the outside of the wire rope 4, and a limit block 43 is coaxially fixedly connected to the end of the wire connector 42 near the clamp head 2. A locking pin 1111 is detachably connected to the inner wall of the fixing cavity 111 along the axial direction. The wire connector 42 has a polygonal cross-section, and a collar 45 is sleeved on its outside. The inner wall of the collar 45 fits against the outer wall of the wire connector 42. A groove 451 that matches the locking pin 1111 is opened on the outer surface of the collar 45 along the axial direction. The locking pin 1111 is located in the groove 451 and is slidably connected to the inner wall of the groove 451. The locking pin 1111 limits the rotation of the collar 45 in the circumferential direction through the groove 451, thereby limiting the rotation of the wire connector 42, reducing the probability of the wire rope 4 deflecting, and thus improving the working stability of the wire rope 4.

[0042] Reference Figure 2 and Figure 3 The grip portion 1 is provided with a locking portion 5 for tightening the wire rope 4. The locking portion 5 includes a handle 51, a connecting body 52, and a locking seat 53. The connecting body 52 is located on the outside of the grip portion 1 and communicates with the fixed cavity 111. The handle 51 is sleeved on the outside of the connecting body 52, and a threaded rod 514 is fixedly installed inside the handle 51. The threaded rod 514 is inserted into the connecting body 52 and threadedly connected to the connecting body 52. ​​The locking seat 53 is located between the threaded rod 514 and the grip portion 1 and is rotatably connected to the threaded rod 514. The connecting body 52 is set perpendicular to the wire rope connector 42, so that the handle 51 is close to the user's hand, making it convenient for the user to rotate and adjust.

[0043] Reference Figure 2 and Figure 3 The snap-fit ​​seat 53 has an annular groove at one end near the handle 51. A cylindrical pin is provided in the annular groove. The width of the annular groove is adapted to the outer diameter of the cylindrical pin. The cylindrical pin passes through the threaded rod 514 and fits into the annular groove, so that the threaded rod 514 supports the snap-fit ​​seat 53.

[0044] Reference Figure 2 and Figure 3The snap-fit ​​seat 53 has a radial groove, and a second limiting pin 532 is provided in the groove. The second limiting pin 532 protrudes from the outer circle of the snap-fit ​​seat 53. The connecting body 52 has a second limiting groove 522 that matches the second limiting pin 532 along the axial direction. The second limiting groove 522 guides and limits the second limiting pin 532 vertically, thereby limiting the snap-fit ​​seat 53 when the threaded column rotates, so that the snap-fit ​​seat 53 only moves with the threaded column along the axial direction, which helps to improve the stability of the snap-fit ​​seat 53's movement.

[0045] Reference Figure 2 and Figure 3 The lower end of the clamping seat 53 is provided with a clearance groove for avoiding the wire rope 4. The lower end of the clamping seat 53 is provided with a first inclined surface 531 on the side near the limiting block 43. Under the limiting action of the second limiting pin 532, the first inclined surface 531 always faces the limiting block 43. The first inclined surface 531 is inclined from the threaded rod 514 in the direction of the clamp head 2. The side of the limiting block 43 near the clamp head 2 is provided with a second inclined surface 431 corresponding to the first inclined surface 531. The second inclined surface 431 is inclined from the gripping part 1 in the direction of the clamp head 2.

[0046] Reference Figure 2 and Figure 3 Rotate the handle 51 to move the threaded rod 514 along the length of the connecting body 52. ​​At this time, the clearance groove is always directly opposite the wire rope 4. The clamping seat 53 avoids the wire rope 4 through the clearance groove, thereby expanding the range of motion of the clamping seat 53. This helps to reduce the probability of the clamping seat 53 touching the wire rope 4 and affecting the operation of the wire rope 4, and improves the stability of the operation of the wire rope 4.

[0047] Reference Figure 2 and Figure 3 When the first inclined plane 531 contacts the second inclined plane 431, the clamping seat 53 applies a pushing force to the limiting block 43 through the first inclined plane 531, thereby causing the wire connector 42 to tighten the wire rope 4. The connecting blocks 41 press against each other under the action of the wire rope 4, so as to fix the angle of the clamp head 2 and the gripping part 1, which is conducive to improving the convenience of using the device.

[0048] Reference Figure 3 and Figure 4A lead screw 44 is provided between the threaded tube 462 and the limiting block 43 of the wire rope 4, and the lead screw 44 is sleeved on the outside of the wire rope 4. When the lead screw 44 abuts against the threaded tube 462, the wire rope 4 between the toothed tube 461 and the connecting column is in a slack state. At this time, it is convenient to adjust the angle between the connecting blocks 41 to meet the working needs. At the same time, the lead screw 44 prevents the wire rope 4 from completely disengaging from the fixed cavity 111, which helps to improve the working stability of the wire rope 4. The fixed position of the lead screw 44 along the length of the wire rope 4 is adjustable. When the wire rope 4 deforms under long-term use, the tension of the wire rope 4 in the free state of the connecting block 41 can be maintained by adjusting the position of the lead screw 44, which helps to extend the service life of the wire rope 4.

[0049] Reference Figure 2 and Figure 3 The handle 51 includes a threaded sleeve 513 and a rotating plate 511. The threaded sleeve 513 is fitted on the outside of the connecting body 52 and fits against the outer wall of the connecting body 52. ​​The rotating plate 511 is located on the outside of the threaded sleeve 513. The threaded rod 514 is fixed on the inner wall of the threaded sleeve 513. A limiting pin 512 is provided between the rotating plate 511 and the threaded sleeve 513. An annular groove 521 adapted to the limiting pin 512 is opened on the outside of the connecting body 52. ​​The limiting pin 512 passes through the rotating plate 511 and the threaded sleeve 513 and is inserted into the annular groove 521. The annular groove 521 limits the circumferential displacement of the limiting pin and provides space for the rotating threaded rod 514 to move vertically. At the same time, the threaded sleeve 513 and the connecting body 52 are detachably connected, which is beneficial for cleaning the hemostat after disassembly.

[0050] The implementation principle of a customizable and detachable minimally invasive hemostatic forceps according to an embodiment of this application is as follows: The cooperation between the ball head 411 and the arc surface 412 allows for radial bending adjustment space between adjacent connecting blocks 41. During the adjustment process, the wire rope 4 deforms synchronously with the rotation of the connecting block 41. After the operator adjusts the connecting block 41 to the required angle, they rotate the handle 51, causing the threaded rod 514 to push the locking seat 53 downward. The locking seat 53 pushes the limiting block 43, causing the wire connector 42 to move away from the forceps head 2, thereby tightening the wire rope 4. At this time, the connecting blocks 41 abut against each other, thereby fixing the angle between the connecting blocks 41. Finally, the angle between the forceps head 2 and the gripping part 1 is fixed, which helps to improve the stability of the device. Rotating the toothed tube 461 causes the threaded tube 462 to disengage from the fixed cavity 111, so that the wire rope 4 can be detachably connected to the gripping part 1. Rotating the steel ball pressure plate 12 allows the flexible transmission component 3 to be disassembled and assembled with the gripping part 1, which helps to improve the disassembly convenience of the device.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A customizable and detachable minimally invasive hemostatic forceps, comprising a gripping part (1), a flexible transmission component (3), and a forceps head (2), wherein the flexible transmission component (3) is connected between the gripping part (1) and the forceps head (2), the gripping part (1) controls the opening and closing of the forceps head (2) through the flexible transmission component (3), and the flexible transmission component (3) is radially flexible, characterized in that, It also includes: a steel wire rope (4), which is located between the jaw (2) and the grip (1). The end of the steel wire rope (4) near the jaw (2) is provided with a connecting post, which is connected to the jaw (2). The other end is provided with a toothed connector (46). The steel wire rope (4) passes through the toothed connector (46) along its length and is slidably connected to the toothed connector (46). The toothed connector (46) is connected to the end of the grip (1) near the jaw (2). Several connecting blocks (41) are provided between the toothed connector (46) and the connecting post. A ball head (411) is fixed on one side of the connecting block (41), and an arc-shaped surface (412) adapted to the ball head (411) is opened on the other side. Two adjacent connecting blocks are connected to each other. Between blocks (41), the ball head (411) of any connecting block (41) is located in the arc surface (412) of another connecting block (41) and fits against the arc surface (412). Both the connecting block (41) and the ball head (411) have movable cavities (413) along the length of the wire rope (4). The wire rope (4) passes through all the movable cavities (413) in sequence. The movable cavities (413) provide space for the wire rope (4) and the connecting block (41) to deflect radially. The diameter of the movable cavity (413) gradually increases from the middle to both ends, and the smallest diameter of the movable cavity (413) is adapted to the outer diameter of the wire rope (4). The gripping part (1) is provided with a locking part (5) for tightening the wire rope (4).

2. The customizable and detachable minimally invasive hemostat according to claim 1, characterized in that: The gripping part (1) has a guide cavity (11). A toothed connector (46) is located at one end of the guide cavity (11) near the pliers head (2). The wire rope (4) passes through the toothed connector (46) and extends into the guide cavity (11). A wire connector (42) is fixed to one end of the wire rope (4) away from the connecting post. The wire connector (42) is located in the guide cavity (11) and slides along the axis of the guide cavity (11). The locking part (5) includes a handle (51), a connecting body (52), and a locking seat (53). 52) Connected to the outside of the grip (1) and communicating with the guide cavity (11), the handle (51) is provided with a threaded rod (514), the threaded rod (514) passes through the connecting body (52) and is threadedly connected to the connecting body (52), the snap-fit ​​seat (53) is provided on the side of the threaded rod (514) near the wire rope (4), when the threaded rod (514) rotates, it drives the snap-fit ​​seat (53) to approach the wire connector (42), when the snap-fit ​​seat (53) contacts the wire connector (42), it pushes the wire connector (42) away from the clamp head (2).

3. The customizable and detachable minimally invasive hemostat according to claim 2, characterized in that: The handle (51) includes a threaded sleeve (513) and a rotating plate (511). The threaded sleeve (513) is sleeved on the outside of the connecting body (52). The threaded rod (514) is coaxially arranged on the inner wall of the threaded sleeve (513) and rotates synchronously with the threaded sleeve (513). The rotating plate (511) is located on the outside of the threaded sleeve (513). A limiting pin (512) is provided between the rotating plate (511) and the threaded sleeve (513). An annular groove (521) is provided on the outer wall of the connecting body (52) along the circumferential direction. The width of the annular groove (521) is greater than the diameter of the limiting pin (512). The limiting pin (512) passes through the rotating plate (511) and the threaded sleeve (513) in sequence and is located in the annular groove (521).

4. A customizable and detachable minimally invasive hemostat according to claim 2, characterized in that: The connecting body (52) is perpendicular to the wire connector (42). The wire connector (42) is coaxially fixed to the side of the clamp head (2) with a limiting block (43). The lower end of the snap-fit ​​seat (53) is provided with a first inclined surface (531). When the first inclined surface (531) contacts the limiting block (43), it applies a pushing force away from the clamp head (2) to the limiting block (43). The limiting block (43) is provided with a second inclined surface (431) corresponding to the first inclined surface (531).

5. A customizable and detachable minimally invasive hemostat according to claim 2, characterized in that: The lower end of the snap-fit ​​seat (53) is provided with a clearance groove that is compatible with the wire rope (4). The snap-fit ​​seat (53) is rotatably connected to the threaded rod (514) around the axis of the threaded rod (514). The outer circle of the snap-fit ​​seat (53) is provided with a limit pin (532). The connecting body (52) is provided with a limit groove (522) along the length direction of the threaded rod (514). The limit pin (532) is located in the limit groove (522) and slides along the length direction of the limit groove (522).

6. A customizable and detachable minimally invasive hemostat according to claim 2, characterized in that: The cross-section of the wire connector (42) along the radial direction is polygonal. A collar (45) is sleeved on the outside of the wire connector (42), and the inner wall of the collar (45) is in contact with the outer edge of the wire connector (42). A slot (451) is opened in the length direction of the collar (45). A locking pin (1111) is provided in the grip (1). The locking pin (1111) passes through the grip (1) and extends into the slot (451), and the locking pin (1111) is in contact with the inner wall of the slot (451).

7. A customizable and detachable minimally invasive hemostat according to claim 2, characterized in that: The toothed connector (46) includes a toothed tube (461) and a threaded tube (462). The toothed tube (461) and the threaded tube (462) are coaxially fixedly connected. The wire rope (4) passes through the toothed tube (461) and the threaded tube (462) in sequence. The threaded tube (462) is inserted into the guide cavity (11) and threadedly connected to the inner wall of the guide cavity (11).

8. A customizable and detachable minimally invasive hemostat according to claim 4, characterized in that: The wire rope (4) is fitted with a lead screw (44) on the outside. The lead screw (44) is located on the side of the threaded tube (462) near the limiting block (43). When the lead screw (44) abuts against the threaded tube (462), the wire rope (4) between the toothed tube (461) and the connecting column is in a slack state.

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