CN219962961U - Bendable laparoscope needle holder - Google Patents

Abstract

The utility model relates to a bendable laparoscope needle holder, which comprises a holding part, a steering control assembly, a long handle tube, a steering joint and clamping fingers, wherein the holding part comprises an upper grip and a lower grip, and the distance between the upper grip and the lower grip can be adjusted by holding; the steering control assembly comprises a shell connected with the upper grip and the lower grip, a rotating shaft is arranged in the shell, the rotating shafts are respectively connected with two driving wires, and the rotating shafts rotate to drive the end parts of the driving wires to displace; the long handle pipe is connected with the shell, and the long handle pipe is arranged in a hollow mode so that the driving wire can pass through the long handle pipe. According to the utility model, the angle rotation of the clamping finger is realized, the operation coverage area of the laparoscopic needle holder is effectively increased, difficult suture treatment can be realized without increasing the Trocar hole on the abdominal wall or replacing the Trocar hole in many scenes, the steering joint is operated by pulling the driving wire through the rotating shaft, and the small connecting shaft connected to the tail end of the steering joint and the clamping finger follow to realize angle change.

Description

Bendable laparoscope needle holder

Technical Field

The utility model relates to a bendable laparoscope needle holder.

Background

The traditional laparoscopic needle holder can only be meshed with the upper handle and the lower handle by hands, and the clamping head is combined through the internal steel wire linkage, so that the clamping head and the handle are required to be arranged in the same horizontal line direction along the steel wire, but in the operation process of a doctor, a plurality of operation points cannot be directly processed through wound cutting positions, and the operation holes are required to be replaced in order to adjust the angle of the clamping head of the laparoscopic needle holder, so that the medical operation space requirement can be met, on one hand, an operator is required to have higher operation skills, on the other hand, the additionally increased operation holes can cause greater damage to a patient, the pain of the patient can be increased, and the rehabilitation time of the patient can be prolonged.

For example, in minimally invasive laparoscopic surgery, when a focus is found in the abdominal cavity of a human body and surgery is needed, processes such as separation and suturing are performed on tissues and organs in the abdominal cavity, and the problems such as deviation after insertion and difficult suturing often occur due to the fact that the Trocar hole of the abdominal wall is not corresponding to the position of the operation in the abdominal cavity in the conventional laparoscopic needle holder.

Disclosure of Invention

The utility model provides an elbow laparoscope needle holder, which is reasonable in structural design, realizes the angular rotation of clamping fingers through innovation of a mechanical structure, effectively increases the operation coverage area of the laparoscope needle holder, can realize difficult suture treatment without increasing a Trocar hole on the abdominal wall or replacing the Trocar hole in many scenes, has extremely strong controllability by adopting a deflector rod structure for operation, is easy to find handfeel in the use process of doctors, is convenient for accurately adjusting the clamping finger angle for positioning and aiming, does not need electric drive, is fully mechanically driven, has high safety and strong practicability, and solves the problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the bendable laparoscope needle holder comprises a holding part, a steering control assembly, a long handle tube, a steering joint and clamping fingers, wherein the holding part comprises an upper grip and a lower grip, and the distance between the upper grip and the lower grip can be adjusted by holding; the steering control assembly comprises a shell connected with the upper grip and the lower grip, a rotating shaft is arranged in the shell, the rotating shafts are respectively connected with two driving wires, and the rotating shafts rotate to drive the end parts of the driving wires to displace; the long handle pipe is connected with the shell, and the long handle pipe is arranged in a hollow mode so as to enable the driving wire to pass through; the steering joint comprises a plurality of joint pieces, adjacent joint pieces are hinged through joint shafts, one end of the steering joint is connected with the tail end of the long handle pipe, the other end of the steering joint is connected with a small connecting shaft, and the driving wire penetrates through wire holes of the joint pieces and then is connected with two side positions of the small connecting shaft; the clamp fingers are provided with two clamp fingers which are respectively hinged to the tail ends of the connecting small shafts. According to the technical scheme, through innovation of structure of the existing laparoscopic needle holder, angle rotation of the clamp finger is achieved, the operation coverage area of the laparoscopic needle holder is effectively increased, difficult suture treatment can be achieved without increasing a abdominal wall Trocar hole or replacing the Trocar hole under a plurality of scenes, steering joints are operated through a driving line driven by a rotating shaft, the small connecting shaft connected to the tail ends of the steering joints and the clamp finger follow the angle change, controllability is extremely strong, hand feeling is easy to find in the using process of doctors, positioning aiming is carried out by conveniently and accurately adjusting the clamp finger angle, the whole laparoscopic needle holder does not need electric driving, and is full-mechanical driving, high in safety and high in practicability.

Further, the lower handle is connected with a driving part, the driving part is provided with a driving hole, the driving hole is connected with one end of a steel wire, the other end of the steel wire sequentially penetrates through the shell, the long handle tube and the steering joint and then is connected with the clamping finger, a joint piece of the steering joint is provided with a central hole for the steel wire to penetrate through, and the clamping finger is provided with a connecting hole for the steel wire to be connected. In the scheme, the opening and closing actions of the clamping fingers are linked through the steel wire, and the lower handle drives the driving part to swing, so that the end part of the steel wire connected to the driving hole is displaced, the position of the clamping fingers connected to the other end of the steel wire is changed, and the clamping fingers are flexibly opened and closed.

Further, the upper grip and the lower grip are respectively connected and mutually crossed to form an upper spring piece and a lower spring piece, the upper spring piece and the lower spring piece provide elastic support for the interval adjustment of the upper grip and the lower grip, and the relative position of the lower grip can drive the driving part to swing after being changed so as to realize the pulling adjustment of the steel wire to open and close the clamping fingers. The scheme specifically illustrates that the operation process of the lower grip can establish an elastic supporting relationship with the upper grip, and the grip has good hand feeling and simple operation.

Further, the upper grip and the lower grip are also provided with ratchet locking components with fixed interval positions. In order to keep the clamping finger in a stable closing or opening state, the relative positions of the lower grip and the upper grip are locked through the ratchet locking assembly, so that the clamping finger is prevented from loosening.

Further, a rotary groove is formed in the shell, a rotary shaft is arranged in the rotary groove, and the rotary shaft extends out of the shell to be connected with a deflector rod. Through the design of rotary groove, make the rotation axis can install in the casing steadily, and the rotation axis is connected with the driving lever, makes the operation of rotation axis laborsaving and accurate more.

Further, a positioning groove is formed in the shell, a positioning block is arranged in the positioning groove, a movable block is connected with the positioning block through a spring, the movable block is abutted to the rotating shaft under the action of the elastic force of the spring, matching surfaces are arranged at two sides, adjacent to 90 degrees, of the circumferential surface of the rotating shaft, and the matching surfaces are used for being matched with the movable block for positioning. In the scheme, the rotating shafts are limited to rotate 90 degrees respectively along the clockwise or anticlockwise direction, the spring is utilized to compress the movable blocks to be abutted against the matching surfaces of the rotating shafts through the matching surfaces, the self-locking of the rotating shafts in the posture after the 90-degree rotation switching of the rotating shafts in the two directions is realized, the corresponding state change of the steering joints in the 90-degree rotation directions of the two sides is realized, and the state locking of the clamping fingers after the 90-degree rotation of the steering joints is ensured.

Further, a positioning plate connected with the shell is arranged above the positioning block, and the positioning plate is used for sealing the positioning block and the movable block. In order to prevent the movable block, the spring and the positioning block from being separated from the positioning groove, the positioning plate is designed to be closed.

Further, the positioning block and the movable block are respectively provided with through holes corresponding to each other, the through holes are used for the driving wire to pass through, one end of the driving wire is connected with the rotating shaft, and the other end of the driving wire sequentially passes through the movable block, the positioning block, the long handle pipe and the steering joint and then is connected with the small connecting shaft. The rotation shaft rotates to drive the linear displacement, the small shaft is connected through the driving line in a linkage mode, the traction steering of the small shaft is achieved, the steering joint on one side of the small shaft is connected to provide steering allowance, and the clamping finger on the other side of the small shaft follows steering.

Further, the lateral wall of connecting the pony roll is equipped with two connecting plates that correspond each other, the connecting plate supplies the drive line winding is connected, single the end of drive line is followed after the connecting plate position winding is traded again along steering joint, long handle pipe, locating piece, movable block wear back to connect in the rotation axis. The single driving wire is connected with the steering joint and the connecting small shaft in a winding way, so that the connection coverage area of the driving wire is increased, two wire holes are needed to be arranged at intervals of a single joint piece for the driving wire to go back and forth, and the stable control of the single driving wire on the steering joint and the connecting small shaft is realized.

Further, the outer wall of the rotating shaft is provided with two wire grooves, and the two wire grooves are arranged along the axial direction of the rotating shaft so as to be respectively connected with the two driving wires. In order to enable the driving wire to be more stable in the rotation process along the rotating shaft, a wire groove is formed in the outer wall of the rotating shaft, so that the driving wire can be contained in the wire groove, the driving wire is prevented from being deviated along the axial direction of the rotating shaft, and the working process of the driving wire is more stable and reliable.

The structure has the beneficial effects that the structure is reasonable in design, the angle rotation of the clamping finger is realized through innovation of a mechanical structure, the operation coverage area of the laparoscopic needle holder is effectively increased, difficult suture treatment can be realized without increasing the Trocar hole on the abdominal wall or replacing the Trocar hole in many scenes, moreover, the structure is operated by adopting a deflector rod, the controllability is extremely strong, a doctor can easily find the hand feeling in the using process, the positioning aiming is realized by conveniently and accurately adjusting the angle of the clamping finger, the whole laparoscopic needle holder does not need electric drive, and the laparoscopic needle holder is fully mechanically driven, high in safety and strong in practicability.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic view showing a state that the clip of the present utility model is rotated 90 ° in one direction.

Fig. 3 is a schematic view showing a state in which the clip of the present utility model is rotated 90 ° in the other direction.

Fig. 4 is a partial enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic view of a partial three-dimensional explosion of the present utility model.

Fig. 6 is a schematic view of a partial three-dimensional explosion of the present utility model.

Fig. 7 is a schematic diagram of a connection path of a driving line according to the present utility model.

Fig. 8 is a schematic diagram of the connection path of the steel wire of the present utility model.

In the drawing the view of the figure,

1. a grip portion; 101. an upper grip; 102. a lower grip; 103. a driving section; 104. a drive hole; 105. an upper spring piece; 106. a lower spring piece;

2. a steering control assembly; 201. a housing; 202. a rotation shaft; 203. a driving line; 204. a rotary groove; 205. a deflector rod; 206. a positioning groove; 207. a positioning block; 208. a spring; 209. a movable block; 210. a mating surface; 211. a positioning plate; 212. a wire slot;

3. a long handle tube;

4. a steering joint; 401. a joint member; 402. a joint shaft; 403. connecting a small shaft; 404. a wire hole; 405. a central bore; 406. a connecting plate;

5. a clamping finger; 501. a connection hole;

6. a steel wire;

7. a ratchet locking assembly.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-8, an bendable laparoscope needle holder comprises a holding part 1, a steering control assembly 2, a long handle tube 3, a steering joint 4 and a clamping finger 5; the holding part 1 comprises an upper grip 101 and a lower grip 102, and the space between the upper grip 101 and the lower grip 102 can be adjusted by holding; the steering control assembly 2 comprises a shell 201 connected with the upper grip 101 and the lower grip 102, a rotating shaft 202 is arranged in the shell 201, the rotating shafts 202 are respectively connected with two driving wires 203, and the rotating shafts 202 rotate to drive the end parts of the driving wires 203 to displace; the long handle tube 3 is connected with the shell 201, and the long handle tube 3 is arranged in a hollow way for the driving wire 203 to pass through; the steering joint 4 comprises a plurality of joint pieces 401, the adjacent joint pieces 401 are hinged through joint shafts 402, one end of the steering joint 4 is connected with the tail end of the long handle tube 3, the other end of the steering joint 4 is connected with a small connecting shaft 403, and the driving wire 203 passes through wire holes 404 of the joint pieces 401 and then is connected with two side positions of the small connecting shaft 403; the two clamping fingers 5 are hinged to the tail ends of the connecting small shafts 403 respectively. According to the scheme, through innovation of the structure of the existing laparoscopic needle holder, the angle rotation of the clamp finger 5 is achieved, the operation coverage area of the laparoscopic needle holder is effectively increased, difficult suturing treatment can be achieved without increasing an abdominal wall Trocar hole or replacing the Trocar hole under a plurality of scenes, the steering joint 4 is operated by pulling the driving wire 23 through the rotating shaft 202, the small connecting shaft 403 connected to the tail end of the steering joint 4 and the clamp finger 5 follow the angle change, the controllability is extremely strong, a doctor can easily find the hand feeling in the using process, the clamp finger 5 angle is conveniently and accurately adjusted to conduct positioning aiming, the whole laparoscopic needle holder does not need electric driving, full mechanical driving is achieved, safety is high, and practicability is high.

As shown in fig. 5 and 8, the lower grip 102 is connected with a driving part 103, the driving part 103 is provided with a driving hole 104, the driving hole 104 is connected with one end of a steel wire 6, the other end of the steel wire 6 sequentially passes through the housing 201, the long handle tube 3 and the steering joint 4, and then is connected with a clamp finger 5, a joint piece 401 of the steering joint 4 is provided with a central hole 405 for the steel wire 6 to pass through, and the clamp finger 5 is provided with a connecting hole 501 for the steel wire 6 to connect. In this scheme, the opening and closing actions of the clamping finger 5 are linked through the steel wire 6, specifically, the lower grip 102 drives the driving part 103 to swing, so that the end part of the steel wire 6 connected to the driving hole 104 is displaced, the position of the clamping finger 5 connected to the other end of the steel wire 6 is changed, and the clamping finger 5 is flexibly opened and closed.

In a preferred embodiment, as shown in fig. 1, an upper grip 101 and a lower grip 102 are respectively connected and mutually crossed with an upper spring piece 105 and a lower spring piece 106, the upper spring piece 105 and the lower spring piece 106 provide elastic support for adjusting the distance between the upper grip 101 and the lower grip 102, and the relative position of the lower grip 102 can drive a driving part 103 to swing after being changed so as to realize pulling of the steel wire 6 to adjust the opening and closing of the clamping finger 5. In this scheme, the operation process of the lower grip 102 is specifically described as being capable of establishing an elastic supporting relationship with the upper grip 101, and the gripping operation has good hand feeling and is easy and convenient to operate.

In a preferred embodiment, as shown in FIG. 1, the upper grip 101 and the lower grip 102 are also provided with ratchet locking assemblies 7 in fixed spaced positions. In order to keep the clamping finger 5 in a stable closed or opened state, the ratchet locking assembly 7 is used for locking the relative positions of the lower grip 102 and the upper grip 101, so that the clamping finger 5 is prevented from loosening. The ratchet locking assembly 7 is of the prior art and will not be described in detail in this solution, as will be appreciated by those skilled in the art from the figures.

Specifically, as shown in fig. 5, a rotary groove 204 is provided in the housing 201, a rotary shaft 202 is provided in the rotary groove 204, and the rotary shaft 202 extends out of the housing 201 to be connected with a lever 205. Through the design of the rotary groove 202, the rotary shaft 202 can be stably installed in the shell 201, and the rotary shaft 202 is connected with the deflector rod 205, so that the operation of the rotary shaft 202 is more labor-saving and accurate.

In a preferred embodiment, as shown in fig. 5, a positioning groove 206 is provided in the housing 201, a positioning block 207 is provided in the positioning groove 206, the positioning block 207 is connected with a movable block 209 through a spring 208, the movable block 209 is abutted against the rotating shaft 202 under the action of the spring 208, and matching surfaces 210 are provided on two sides of the circumferential surface of the rotating shaft 202 adjacent to 90 ° and are used for matching and positioning with the movable block 209. In this solution, it is defined that the rotation shaft 202 can rotate 90 ° clockwise or anticlockwise respectively, and through the design of the mating surface 210, the spring 208 is used to compress the movable block to abut against the mating surface 210 of the rotation shaft 202, so as to realize the posture self-locking of the rotation shaft 202 after the rotation switching of 90 ° in two directions, which corresponds to the state change of the steering joint 4 rotating 90 ° towards two sides, and ensure that the clamping finger 5 follows the state locking of the steering joint 4 rotating 90 °.

In a preferred embodiment, as shown in fig. 5, a positioning plate 211 connected to the housing 201 is provided above the positioning block 207, and the positioning plate 211 is used to seal the positioning block 207 and the movable block 209. In order to prevent the movable block 209, the spring 208 and the positioning block 207 from being separated from the positioning groove 206, the positioning plate 211 is designed to be airtight.

In a preferred embodiment, as shown in fig. 5, the positioning block 207 and the movable block 209 are respectively provided with a through hole 212 corresponding to each other, the through holes 212 are used for the driving wire 203 to pass through, one end of the driving wire 203 is connected to the rotating shaft 202, and the other end sequentially passes through the movable block 209, the positioning block 207, the long handle tube 3 and the steering joint 4 and then is connected with the small shaft 403. The rotation shaft 202 rotates to drive the driving line 203 to displace, the driving line 203 is linked with the small shaft 403, the traction steering of the small shaft 403 is realized, the steering joint 4 on one side of the small shaft 403 is connected to provide steering allowance, and the clamping finger 5 on the other side of the small shaft 403 follows steering.

In a preferred embodiment, as shown in fig. 1 and 4, the side wall of the small connecting shaft 403 is provided with two connecting plates 406 corresponding to each other, the connecting plates 406 are used for winding and connecting the driving wires 203, and the tail end of the single driving wire 203 is wound and changed from the position of the connecting plates 406 and then is connected to the rotating shaft 202 in a penetrating way along the steering joint 4, the long handle tube 3, the positioning block 207 and the movable block 209. The single driving wire 203 is connected with the steering joint 4 and the connecting small shaft 403 in a winding way, so that the connection coverage area of the driving wire 203 is increased, two wire holes 404 are needed to be arranged at intervals on the single joint piece 401 for the driving wire 203 to go back and forth, and the stable control of the single driving wire 203 on the steering joint 4 and the connecting small shaft 403 is realized.

In a preferred embodiment, as shown in fig. 5, the outer wall of the rotating shaft 202 is provided with wire grooves 212, and two wire grooves 212 are provided along the axial direction of the rotating shaft 202 to connect the two driving wires 203, respectively. In order to make the driving wire 203 more stable in the process of rotating along the rotating shaft 202, the outer wall of the rotating shaft 202 is provided with the wire slot 212, so that the driving wire 203 can be accommodated in the wire slot 212, the driving wire 203 is prevented from shifting along the axial direction of the rotating shaft 202, and the working process of the driving wire 203 is more stable and reliable.

The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims (10)

1. An bendable laparoscopic needle holder, comprising:

a grip portion including an upper grip and a lower grip, the upper grip and the lower grip being capable of adjusting a gap by gripping;

the steering control assembly comprises a shell connected with the upper grip and the lower grip, a rotating shaft is arranged in the shell, the rotating shafts are respectively connected with two driving wires, and the rotating shafts rotate to drive the end parts of the driving wires to displace;

the long handle pipe is connected to the shell and is arranged in a hollow mode so that the driving wire can pass through the long handle pipe;

the steering joint comprises a plurality of joint pieces, wherein adjacent joint pieces are hinged through joint shafts, one end of the steering joint is connected with the tail end of the long handle pipe, the other end of the steering joint is connected with a small connecting shaft, and the driving wire penetrates through wire holes of the joint pieces and then is connected with two side positions of the small connecting shaft;

the two clamping fingers are hinged to the tail ends of the connecting small shafts respectively.

2. The bendable laparoscope needle holder according to claim 1, wherein the lower grip is connected with a driving part, the driving part is provided with a driving hole, the driving hole is connected with one end of a steel wire, the other end of the steel wire sequentially passes through the shell, the long handle tube and the steering joint and then is connected with the clamping finger, a joint piece of the steering joint is provided with a central hole for the steel wire to pass through, and the clamping finger is provided with a connecting hole for the steel wire to connect.

3. The bendable laparoscope needle holder according to claim 2, wherein the upper grip and the lower grip are respectively connected and mutually crossed with an upper spring piece and a lower spring piece, the upper spring piece and the lower spring piece provide elastic support for adjusting the distance between the upper grip and the lower grip, and the driving part can be driven to swing after the relative position of the lower grip is changed, so that the opening and closing of the clamping fingers can be adjusted by pulling the steel wire.

4. A bendable laparoscopic needle holder according to claim 3, wherein the upper and lower grips are further provided with ratchet locking assemblies at fixed spaced locations.

5. The bendable laparoscope needle holder according to claim 1, wherein a rotating groove is formed in the housing, a rotating shaft is arranged in the rotating groove, and the rotating shaft extends out of the housing to be connected with a deflector rod.

6. The bendable laparoscope needle holder according to claim 5, wherein a positioning groove is formed in the housing, a positioning block is arranged in the positioning groove, the positioning block is connected with a movable block through a spring, the movable block is abutted against the rotating shaft under the action of the spring, matching surfaces are arranged at two sides of the circumferential surface of the rotating shaft, which are adjacent to 90 degrees, and the matching surfaces are used for matching and positioning with the movable block.

7. The bendable laparoscopic needle holder according to claim 6, wherein a positioning plate connected to the housing is provided above the positioning block, and the positioning plate is used for sealing the positioning block and the movable block.

8. The bendable laparoscope needle holder according to claim 6, wherein the positioning block and the movable block are respectively provided with a through hole corresponding to each other, the through holes are used for the driving wire to pass through, one end of the driving wire is connected with the rotating shaft, and the other end of the driving wire sequentially passes through the movable block, the positioning block, the long handle tube and the steering joint and then is connected with the small connecting shaft.

9. The bendable laparoscope needle holder according to claim 8, wherein two connecting plates corresponding to each other are arranged on the side wall of the small connecting shaft, the connecting plates are used for winding and connecting the driving wires, and the tail end of a single driving wire is wound and changed from the position of the connecting plate and then is connected with the rotating shaft in a penetrating way along the steering joint, the long handle tube, the positioning block and the movable block.

10. The bendable laparoscopic needle holder according to claim 8 or 9, wherein the outer wall of the rotating shaft is provided with two wire grooves, which are provided along the axial direction of the rotating shaft, to connect the two driving wires, respectively.