CN215272970U

CN215272970U - Auxiliary surgical instrument

Info

Publication number: CN215272970U
Application number: CN202023276003.8U
Authority: CN
Inventors: 范克顺; 周毅; 李翠翠
Original assignee: Jixian Artificial Intelligence Co Ltd
Current assignee: Jixian Artificial Intelligence Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-24
Anticipated expiration: 2030-12-29

Abstract

The application discloses an auxiliary surgical instrument, which comprises a base and a control unit, wherein the control unit comprises a control handle, a catheter and a plurality of traction wires, the first end of the catheter is positioned in the base and fixedly connected with the base, the second end of the catheter penetrates out of the base, and the second end of the catheter is provided with a flexible joint part with a set length; one end of the control handle is in universal connection with the base, a spherical hinge body is fixedly arranged at the first end of each traction wire, a hinge seat matched with the spherical hinge body is arranged on the periphery of the universal connection position on the control handle, the first end of each traction wire is in hinged connection with one hinge seat through the spherical hinge body, and the second end of each traction wire sequentially penetrates through the base, the guide pipe and the flexible joint part and is fixedly connected with the extending end of the flexible joint part; when the control handle is adjusted to rotate relative to the base, the control handle adjusts the working state of the flexible joint part through the traction line. The surgical auxiliary instrument disclosed by the application has the advantages of convenience in operation, safety, reliability and the like.

Description

Auxiliary surgical instrument

Technical Field

The application belongs to the field of medical equipment, and particularly relates to an auxiliary surgical instrument.

Background

The types and the number of cases of the existing abdominal cavity operations are obviously increased, and great working pressure is brought to medical staff. Minimally invasive surgery has the advantages of small wound, light pain, quick recovery of patients and the like, and is widely applied to clinical treatment. However, in the process of implementing the minimally invasive surgery, the minimally invasive surgery must be implemented by using the assistance of some surgical auxiliary instruments, and the auxiliary instruments provide convenience for the surgical operation of doctors. During specific operation, only small openings are needed to be formed in the chest and the abdomen, the part of the surgical auxiliary instrument extends into the abdomen and is fixed, gas is blown into the abdominal cavity through the surgical auxiliary instrument by means of a pneumoperitoneum machine to form a pneumoperitoneum, then the required surgical instrument and related auxiliary units (such as an illuminating unit and an image acquisition unit) penetrate into the abdominal cavity through the surgical auxiliary instrument, and a doctor can perform laparoscopic surgery. The operation auxiliary instrument has important responsibility for adjusting the operation position and the operation angle of the operation instrument, and the reliability and the positioning accuracy of the operation auxiliary instrument play an important role in judging whether the operation is successful or not. In the practical application process, the good traction control of the flexible joint part positioned in the abdominal cavity is always a technical difficulty in the industry, and how to safely and reliably realize the control of the surgical instrument has important significance. For this purpose, the applicant proposes a surgical aid having the advantages of easy operation, safety, reliability, etc.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an operation auxiliary instrument to solve at least one technical problem in the above technical problem.

The utility model discloses the technical scheme who adopts does:

a surgical auxiliary instrument comprises a base and a control unit, wherein the control unit comprises a control handle, a catheter and a plurality of traction wires, a first end of the catheter is positioned in the base and fixedly connected with the base, a second end of the catheter penetrates out of the base, and a flexible joint part with a set length is arranged at the second end of the catheter;

one end of the control handle is in universal connection with the base, a spherical hinge body is fixedly arranged at the first end of each traction wire, a hinge seat matched with the spherical hinge body is arranged on the control handle at the periphery of the universal connection position, the first end of each traction wire is in hinged connection with one hinge seat through the spherical hinge body, and the second end of each traction wire sequentially penetrates through the base, the guide pipe and the flexible joint part and is fixedly connected with the extending end of the flexible joint part;

the operating handle and the base are both provided with a surgical instrument passage communicated with the first end of the guide pipe, and surgical instruments can sequentially pass through the surgical instrument passage, the guide pipe and the flexible joint part and penetrate out of the extending end of the flexible joint part to execute surgical operation;

when the control handle is adjusted to rotate relative to the base, the control handle adjusts the working state of the flexible joint part through the traction wire.

Further selectively enabling the middle of the connecting end of the control handle and the base to be provided with a spherical hinge joint, wherein the base comprises a first transition connecting pipe, a spherical hinge joint matched with the spherical hinge joint is arranged at the first end of the first transition connecting pipe, and the control handle is in cross universal connection with the spherical hinge joint through the spherical hinge joint;

four hinged seats are uniformly distributed on the periphery of the spherical hinged position in an annular manner at the end part of the operating handle, and the first ends of the four traction wires are respectively hinged with one hinged seat through one spherical hinged body.

Further selectively enabling the connecting end of the operating handle and the base to comprise a first limiting structure and a second limiting structure which is in adaptive connection with the first limiting structure, wherein the first limiting structure is connected with the second limiting structure and forms the spherical hinge position and four hinge seats which are uniformly distributed on the periphery of the spherical hinge position;

the second limiting structure is right opposite to a traction line through hole communicated with the hinged seat is formed in the position of the hinged seat, and the traction line through hole is arranged along the direction in which the traction line penetrates out in a gradually expanding mode so as to prevent the traction line from being constrained by the operating handle in the traction process.

The traction wire is further selectively set as a traction steel wire, a drift diameter shaft hole is formed in the spherical hinge body, and the first end of the traction wire is fixedly connected with the spherical hinge body through a wire clamp matched with the drift diameter shaft hole;

the wire clamp is provided with a threading hole in the length direction, one end of the traction wire penetrates into the threading hole, so that the wire clamp is deformed and forms a locking state with a set pre-tightening force with the first end of the traction wire, and the other end of the wire clamp penetrates out of the through-diameter shaft hole and extends to a set length;

one end of the wire clamp is provided with a limiting part, one end of the drift diameter shaft hole is provided with a limiting groove matched with the limiting part, and the wire clamp penetrates through the drift diameter shaft hole and is in locking connection with the spherical hinge body through the limiting part and the limiting groove;

when the traction wire is in a critical state of plastic deformation, the first end of the traction wire and the line card slide relatively.

Further selectively enabling the catheter to comprise an instrument channel communicated with two ends of the catheter and a pull wire channel which is uniformly distributed on the wall of the catheter and communicated with two ends of the catheter;

the first transition connecting pipe is arranged by contracting from a first end to a second end, four wire passing holes are uniformly distributed on the side wall of the second end of the first transition connecting pipe, the first end of the guide pipe is communicated with the second end of the first transition connecting pipe, and the second end of each traction wire penetrates through the wire passing hole, the traction wire channel and the flexible joint part which are arranged in an aligned mode and is fixedly connected with the extending end of the flexible joint part.

The first end of the transition joint pipe is sleeved in the second end of the first transition connecting pipe and extends to the position for plugging the wire passing hole, and the second end of the transition joint pipe is hermetically sleeved on the inner side of the first end of the guide pipe in a sealing manner;

the side wall of the first transition connecting pipe is also provided with an airflow access channel, and the airflow access channel is communicated with the guide pipe through the transition joint pipe in sequence, so that airflow can flow through the transition joint pipe and the guide pipe and flow out from the extending end of the flexible joint part.

Further selectively enabling the base to comprise N first transition connecting pipes and a second transition connecting pipe, the surgical auxiliary instrument comprises N manipulation units, wherein N is a positive integer greater than or equal to 2, the control handle of each manipulation unit is hinged with the spherical hinge part of one first transition connecting pipe, and the conduit of each manipulation unit is penetrated by the first end of the second transition connecting pipe and is penetrated out by the second end of the second transition connecting pipe;

each control unit comprises four traction wires, and the working state of the flexible joint part of each control unit is controlled by the control handle through the traction wires.

Further selectively enabling the base to comprise a second transition connecting pipe and two first transition connecting pipes communicated with the first end of the second transition connecting pipe, wherein each first transition connecting pipe extends obliquely towards one end of the second transition connecting pipe and is symmetrically arranged at two sides of the same end of the second transition connecting pipe;

the surgical auxiliary instrument further comprises two manipulation units, the manipulation handle of one manipulation unit is connected with the spherical hinge of one first transition connecting pipe in a spherical hinge mode, the manipulation handle of the other manipulation unit is connected with the spherical hinge of the other first transition connecting pipe in a spherical hinge mode, and the guide pipe of each manipulation unit penetrates through the first end of the second transition connecting pipe and penetrates out of the second end of the second transition connecting pipe.

The base further selectively comprises a first shell and a second shell matched with the first shell, the first shell and the second shell are buckled to form a V-shaped shell, the second end of each first transition connecting pipe is positioned in the V-shaped shell and is matched and fixedly connected with the V-shaped shell, the two first transition connecting pipes are symmetrically arranged, and the first end of each second transition connecting pipe is fixedly connected with the V-shaped shell;

two guide pipe limiting channels are arranged in the V-shaped shell, and the first end of each guide pipe is connected with the second end of the first transition connecting pipe and penetrates into the first end of the second transition connecting pipe through the guide pipe limiting channels.

The surgical auxiliary instrument further comprises a position control unit of the flexible joint part selectively, the position control unit comprises a push-pull rod, a first connecting rod and a second connecting rod, the push-pull rod is arranged in a sliding fit with the base, the push-pull rod penetrates through the first end of the second transition connecting pipe and penetrates out of the second end of the second transition connecting pipe, a first hinge position and a second hinge position are respectively arranged on two sides of the penetrating end of the push-pull rod, the first end of the first connecting rod is hinged to the first hinge position, the second end of the first connecting rod is hinged to the first end of one flexible joint part, the first end of the second connecting rod is hinged to the second hinge position, and the second end of the second connecting rod is hinged to the first end of the other flexible joint part;

when the push-pull rod slides relative to the base, the angle between the first connecting rod and the second connecting rod is changed, so that the working positions of the two flexible joint parts are adjusted.

Through the supplementary apparatus of operation that this application provided can bring following beneficial effect:

1. according to the surgical auxiliary instrument, the control handle is in universal connection with the base, the flexible joint part included in the surgical auxiliary instrument is controlled by the control handle through the traction line, and the working state of the flexible joint part can be adjusted through the traction line only by adjusting the angle of the control handle, so that the purpose of adjusting the working angle of the surgical instrument is achieved; in addition, this application further makes flexible joint portion receives the traction control of four traction wires, makes flexible joint portion can increase home range and activity angle better, provides better operation angle for the surgical instruments that the operation process used to can reduce the operation degree of difficulty effectively, promote the success rate of operation.

2. According to the surgical auxiliary instrument, one end of the traction wire is connected with the control handle in a spherical hinge connection mode, so that the internal stress at the connection part between the control handle and the traction wire can be effectively eliminated, when the traction wire is a traction steel wire, the connection mode can be adopted, the problems that the traction steel wire is bent and is broken due to bending can be avoided, and the surgical auxiliary instrument has better reliability; meanwhile, the traction wire can only bear axial force at the joint, so that the traction wire has a better traction effect.

3. The connecting end of the control handle and the base comprises the first limiting structure and the second limiting structure, and the first limiting structure and the second limiting structure are connected in a matched mode to form the spherical hinge position and the four hinge seats, so that the operation auxiliary instrument is simpler and more efficient to assemble, and the control handle is restrained by the base and has pertinence in control; in addition, this application is through second limit structure is just right the pull wire via hole that sets up on the position of articulated seat is worn out the direction along the pull wire and is expanded the setting gradually, and then can avoid the pull wire to receive at the traction in-process effectively the restraint of handle can increase then the life-span of pulling of pull wire avoids among the complicated operation process, and the back of adjusting many times leads to the cracked problem of pull wire, and then provides reliable supplementary guarantee for the long-time operation of operation.

4. The traction wire is set as the traction steel wire, so that the traction wire occupies less space under the condition of ensuring the required traction force; in addition, the spherical hinge body is provided with the drift diameter shaft hole, and the first end of the traction wire is connected with the drift diameter shaft hole in a locking mode through the wire clamp, so that the spherical hinge body and the traction wire are connected more scientifically; according to the spherical articulated body, the other end of the wire clamp penetrates out of the drift diameter shaft hole and extends to a set length, so that the bearing capacity of the joint of the traction wire and the spherical articulated body can be effectively improved, and the traction wire at the joint can be effectively protected; in addition, this application is through making the ply-yarn drill takes place deformation and forms the locking state that has the settlement pretightning force with the first end of pull wire, and then works as during plastic deformation's critical state takes place for the pull wire, so that the first end of pull wire with relative slip takes place for the ply-yarn drill, avoids causing medical accident because the pull wire fracture, provides the powerful guarantee for the safe handling of operation auxiliary instrument.

5. According to the application, the catheter comprises the instrument channel and the traction wire channel arranged on the wall of the catheter, so that the traction wires, the traction wires and the surgical instrument are independent from each other and are not entangled, and the normal operation of a surgical process is facilitated; in addition, this application is through making the control unit still includes the transition joint pipe, and makes the second end that first transition connecting pipe was located to the pot head of transition joint pipe is located and is extended to general the position of crossing the shutoff of wire hole, just the second end seal cover of transition joint pipe adorn in the first end of pipe is inboard, adopts this kind of setting form, and the interlude of the pull wire of not only being convenient for can satisfy moreover that the pneumoperitoneum machine is in through setting up the air current access channel of first transition connecting pipe lateral wall the sealed requirement of the inside confession gas supply body of abdominal cavity of pipe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a view of the structure of the surgical assistant provided in the embodiment of the present application;

FIG. 2 is an exploded view of the surgical aid provided by an embodiment of the present application;

FIG. 3 is a structural view of a portion of the components of the surgical aid provided in accordance with an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3 at A;

FIG. 5 is a cross-sectional view of the handle and pull wire, ball-shaped articulation of the surgical assistance instrument according to the present application;

FIG. 6 is a cross-sectional view of an assembly of pull wires, line cards and spherical hinges as provided in accordance with an embodiment of the present application;

FIG. 7 is a cross-sectional view of a catheter of the surgical assistant provided in the embodiments of the present application;

FIG. 8 is a structural view of a first transition connection tube of the surgical assistance instrument provided by an embodiment of the present application;

FIG. 9 is a cross-sectional view of a first transition connection tube of the surgical assistance instrument as provided by an embodiment of the present application;

FIG. 10 is a structural view of a flexible joint unit of a surgical assistant provided in accordance with an embodiment of the present application;

fig. 11 is an elevation view of a flexible joint unit of a surgical assistance instrument provided in accordance with an embodiment of the present application.

Wherein, 1, 11 first transition connecting pipes, 111 spherical hinge parts, 112 line holes, 113 airflow access channels, 12 second transition connecting pipes, 13 first shells, 14 second shells, 15 conduit limiting channels,

2 a control unit, 21 a control handle, 211 an articulated seat, 212 a spherical articulated position, 213 a first limit structure, 214 a second limit structure, 2141 a traction wire through hole, 22 a guide pipe, 221 an instrument channel, 222 a traction wire channel, 23 a traction wire, 24 a flexible joint part, 25 a spherical articulated body, 251 a through-diameter shaft hole, 252 a limit groove, 26 a wire clamp, 261 a limit part, 27 a transition joint pipe,

3 a position control unit of the flexible joint part, 31 a push-pull rod, 32 a first connecting rod, 33 a second connecting rod,

41 flexible pipe, 42 first annular joint, 43 second annular joint, 44 third annular joint, 45 limiting seat,

5, an abdication gap.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present application, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

In the present application, the number is included in a certain number or more, and two or more, for example.

For convenience of description, the terms "front", "rear", "left", "right", "up" and "down" will be used with respect to the user when the surgical aid is in use.

The surgical auxiliary instrument shown in fig. 1 to 11 comprises a base 1 and a manipulation unit 2, wherein the manipulation unit 2 comprises a manipulation handle 21, a conduit 22 and a plurality of traction wires 23, a first end of the conduit 22 is located in the base 1 and fixedly connected with the base 1, a second end of the conduit 22 penetrates out of the base 1, and a second end of the conduit 22 is provided with a flexible joint part 24 with a set length; one end of the operating handle 21 is connected with the base 1 in a universal manner, a spherical articulated body 25 is fixedly arranged at the first end of each traction wire 23, an articulated seat 211 matched with the spherical articulated body 25 is arranged on the periphery of the universal connection position on the operating handle 21, the first end of each traction wire 23 is articulated with one articulated seat 211 through the spherical articulated body 25, and the second end of each traction wire 23 sequentially penetrates through the base 1, the guide pipe 22 and the flexible joint part 24 and is fixedly connected with the extending end of the flexible joint part 24; the control handle 21 and the base 1 are both provided with a surgical instrument passage communicated with the first end of the conduit 22, and surgical instruments can sequentially pass through the surgical instrument passage, the conduit 22 and the flexible joint part 24 and penetrate out from the extending end of the flexible joint part 24 to perform surgical operation; when the control handle 21 is adjusted to rotate relative to the base 1, the control handle 21 adjusts the working state of the flexible joint part 24 through the pull wire 23. The surgical aid according to the present invention is preferably used for a surgical operation such as a laparoscopic operation or a thoracic operation. In addition, the number of the manipulation units 2 included in the surgical assistance device according to the present application is not particularly limited, and may be selectively set according to actual needs, but it is preferable that the surgical assistance device includes two manipulation units 2 as shown in fig. 1 to 3. In specific implementation, the length of the flexible joint portion 24 is preferably set to 5cm to 15 cm. According to the surgical auxiliary instrument, the control handle 21 is connected with the base 1 in a universal mode, the control handle 21 controls the flexible joint part 24 of the surgical auxiliary instrument through the traction wire 23, and the working state of the flexible joint part 24 can be adjusted through the traction wire 23 only by adjusting the angle of the control handle 21, so that the purpose of adjusting the working angle of the surgical instrument is achieved; in addition, this application further makes flexible joint portion 24 receives four traction lines 23's traction control, makes flexible joint portion 24 can increase home range and activity angle better, provides better operation angle for the surgical instruments that the operation process used, can reduce the operation degree of difficulty effectively, promote the precision and the success rate of operation.

As a preferred embodiment of the present application, the present application may further selectively provide that a spherical hinge position 212 is provided in the middle of the connection end of the control handle 21 and the base 1, the base 1 includes a first transition connection pipe 11, a first end of the first transition connection pipe 11 is provided with a spherical hinge portion 111 adapted to the spherical hinge position 212, and the control handle 21 is cross-coupled to the spherical hinge portion 111 through the spherical hinge portion 212; four of the hinge seats 211 are annularly and uniformly distributed at the end of the operating handle 21 at the periphery of the spherical hinge position 212, and the first ends of the four pulling wires 23 are respectively hinged with one of the hinge seats 211 through one of the spherical hinge bodies 25. In practical implementation, one of the positions where the spherical hinge portion 111 and the spherical hinge portion 212 are engaged with each other may be further selectively provided with a sliding groove, and the other of the two positions is provided with a protrusion adapted to the sliding groove, so as to enable the control handle 21 to slide relative to the spherical hinge portion 111 according to a set route and avoid circumferential rotation of the control handle 21, in practical implementation, it is preferable that four sliding grooves are uniformly distributed at the spherical hinge portion 212, and four protrusions adapted to the sliding grooves are provided on the spherical hinge portion 111, so as to make the control of the control handle 21 more specific, and simultaneously overcome uncertainty factors caused by circumferential rotation of the control handle 21 and the spherical hinge portion 111 during the control. According to the surgical auxiliary instrument, one end of the traction wire 23 is connected with the control handle 21 in a spherical hinge connection mode, so that the internal stress at the connection part between the control handle 21 and the traction wire 23 can be effectively eliminated, when the traction wire 23 is a traction steel wire, the connection mode can be adopted, the problems that the traction steel wire is bent and is broken due to bending can be avoided, and the surgical auxiliary instrument has better reliability; meanwhile, the traction wire 23 can only bear axial force at the joint, and further has better traction effect.

As a preferred embodiment in this embodiment, the base 1 further comprises a second transition connecting pipe 12 and two first transition connecting pipes 11 communicated with a first end of the second transition connecting pipe 12, each first transition connecting pipe 11 extends obliquely towards one end of the second transition connecting pipe 12 and is symmetrically arranged on two sides of the same end of the second transition connecting pipe 12; the surgical instrument further comprises two manipulating units 2, wherein the manipulating handle 21 of one manipulating unit 2 is connected with the spherical hinge 111 of one first transition connecting pipe 11 in a spherical hinge manner, the manipulating handle 21 of the other manipulating unit 2 is connected with the spherical hinge 111 of the other first transition connecting pipe 11 in a spherical hinge manner, and the conduit 22 of each manipulating unit 2 is penetrated through the first end of the second transition connecting pipe 12 and is penetrated out through the second end thereof. In specific implementation, it is further preferable that the base 1 further includes a first shell 13 and a second shell 14 adapted to the first shell 13, the first shell 13 and the second shell 14 are buckled to form a V-shaped shell, a second end of each first transition connecting pipe 11 is located in the V-shaped shell and is adapted and fixedly connected to the V-shaped shell, the two first transition connecting pipes 11 are symmetrically arranged, and a first end of the second transition connecting pipe 12 is fixedly connected to the V-shaped shell; two conduit limiting channels 15 are arranged inside the V-shaped shell, and a first end of each conduit 22 is connected with a second end of the first transition connecting pipe 11 and penetrates into a first end of the second transition connecting pipe 12 through the conduit limiting channels 15. And the first transition connecting pipe 11 and the second transition connecting pipe 12 are more firmly fixed, so that the surgical auxiliary instrument is more beautiful.

As a preferred example in this embodiment, the present application may further selectively enable the connection end of the control handle 21 and the base 1 to include a first limiting structure 213 and a second limiting structure 214 adapted to be connected to the first limiting structure 213, where the first limiting structure 213 and the second limiting structure 214 are connected to form the spherical hinge position 212 and four hinge seats 211 uniformly distributed around the spherical hinge position 212; the position, facing the hinge base 211, of the second limiting structure 214 is provided with a pull line through hole 2141 communicated with the hinge base 211, and the pull line through hole 2141 is arranged along the direction in which the pull line 23 penetrates out in a gradually expanding manner, so that the pull line 23 is prevented from being constrained by the operating handle 21 in the traction process. In specific implementation, it is preferable that the first limiting structure 213 and the second limiting structure 214 are both configured as a structure body with a square outline, the spherical hinge joint 212 is located at the center of the square outline, the four hinge seats 211 are uniformly distributed on the periphery of the spherical hinge joint 212, and the four hinge seats 211 are preferably located at four corners of the structure body with the square outline. The surgical auxiliary instrument is more simply and efficiently assembled by enabling the connecting end of the control handle 21 and the base 1 to comprise the first limiting structure 213 and the second limiting structure 214 and enabling the first limiting structure and the second limiting structure to be matched and connected to form the spherical hinge position 212 and the four hinge seats 211, and the control handle 21 is more targeted to be operated while the control handle 21 is restrained by the base 1; in addition, this application is through second limit structure 214 is just right the pull wire via hole 2141 that sets up on the position of articulated seat 211 wears out the direction along pull wire 23 and gradually expands the setting, and then can avoid pull wire 23 to receive in traction process effectively the restraint of handle 21, and then can increase pull wire 23's traction life avoids complicated operation in-process, adjusts the back many times, leads to the cracked problem of pull wire 23, and then provides reliable supplementary guarantee for the normal clear of operation.

As a preferred example in this embodiment, the present application may further selectively enable the pulling wire 23 to be a pulling steel wire, the spherical hinge body 25 is provided with a through-diameter shaft hole 251, and a first end of the pulling wire 23 is fixedly connected to the spherical hinge body 25 through a line clamp 26 adapted to the through-diameter shaft hole 251; the wire clamp 26 is provided with a threading hole in the length direction, and one end of the pull wire 23 penetrates through the threading hole, so that the wire clamp 26 deforms and forms a locking state with a set pre-tightening force with the first end of the pull wire 23; one end of the line card 26 is provided with a limiting part 261, one end of the through-diameter shaft hole 251 is provided with a limiting groove 252 matched with the limiting part 261, the line card 26 penetrates through the through-diameter shaft hole 251 and is in locking connection with the spherical hinge body 25 through the limiting part 261 and the limiting groove 252, and the other end of the line card 26 penetrates through the through-diameter shaft hole 251 and extends to a set length; when the critical state of plastic deformation of the traction wire 23 occurs, the first end of the traction wire 23 slides relative to the line card 26. In particular, the traction steel wire is preferably made of stainless steel material, or a rust-proof coating is plated on the traction steel wire; in addition, the line cards 26 may optionally be made of stainless steel. The traction wire 23 is made into the traction steel wire, so that the traction wire 23 occupies less space under the condition of ensuring the required traction force; besides, the spherical hinge body 25 is provided with the drift diameter shaft hole 251, the first end of the traction wire 23 is connected with the drift diameter shaft hole 251 in a locking mode through the wire clamp 26, and therefore the connection between the spherical hinge body 25 and the traction wire 23 is more scientific. The other end of the line card 26 penetrates out of the drift diameter shaft hole 251 and extends to a set length, so that the bearing capacity of the joint of the traction line 23 and the spherical hinge body 25 can be effectively increased, and the traction line 23 at the joint can be effectively protected; in addition, this application is through making the ply-yarn drill 26 takes place to deform and forms the locking state that has the settlement pretightning force with the first end of pull wire 23, and then when pull wire 23 takes place the critical state of plastic deformation, so that the first end of pull wire 23 with ply-yarn drill 26 takes place relative slip, avoids causing medical accident because pull wire 23 breaks, provides the powerful guarantee for the safe handling of operation auxiliary instrument.

As a preferred embodiment of the present application, when the present application is embodied, as shown in fig. 7, the catheter 22 may further optionally include an instrument channel 221 communicating with both ends of the catheter 22, and a pull wire channel 222 disposed on the wall of the catheter 22 and communicating with both ends of the catheter 22; as shown in fig. 8 and 9, the first transition connecting tube 11 is contracted from the first end to the second end, and four wire passing holes 112 are uniformly distributed on a sidewall of the second end, the first end of the guiding tube 22 is communicated with the second end of the first transition connecting tube 11, and the second end of each pulling wire passes through the wire passing hole 112, the pulling wire channel 222, and the flexible joint 24, which are aligned with the second end of the pulling wire, and is fixedly connected with the extending end of the flexible joint 24. In practical implementation, the number of the pull wire channels 222 can be matched according to the number of the pull wires included in the manipulation unit 2, and preferably, four pull wire channels 222 are uniformly distributed on the wall of the catheter 22 along the axial direction. The present application helps the normal operation of the surgical procedure by making the catheter 22 include the instrument channel 221 and the pull wire channel 222 disposed on the catheter wall, thereby making the pull wires independent of each other and free from entanglement with the surgical instruments.

As a preferred embodiment in this embodiment, when the present application is implemented, the manipulating unit 2 may further selectively further include a transition joint pipe 27, a first end of the transition joint pipe 27 is sleeved in a second end of the first transition connecting pipe 11 and extends to a position where the wire passing hole 112 is blocked, and a second end of the transition joint pipe 27 is hermetically sealed and installed inside the first end of the guide tube 22; and an airflow access channel 113 is further formed in the side wall of the first transition connecting pipe 11, and the airflow access channel 113 is sequentially communicated with the guide pipe 22 through the transition joint pipe 27, so that airflow can flow through the transition joint pipe 27 and the guide pipe 22 and flow out from the outward extending end of the flexible joint part 24. This application is through making control unit 2 still includes transition joint pipe 27, and makes the second end of first transition connecting pipe 11 is located to a pot head of transition joint pipe and extends to and will cross the position of line hole 112 shutoff, just the second end seal cover of transition joint pipe adorn in the first end of pipe 22 is inboard, adopts this kind of mode of setting up, not only is convenient for alternate of pull wire, can satisfy moreover that pneumoperitoneum machine is in through setting up the air current access channel 113 of first transition connecting pipe 11 lateral wall the sealed requirement of gas is supplied to abdominal cavity inside to pipe 22.

As a preferred embodiment of the present application, the present application may further selectively enable the base 1 to comprise N first transition connection tubes 11 and one second transition connection tube 12, the surgical auxiliary instrument comprises N manipulation units 2, where N is a positive integer greater than or equal to 2, the manipulation handle 21 of each manipulation unit 2 is hinged to the spherical hinge 111 of one first transition connection tube 11, and the conduit 22 of each manipulation unit 2 is penetrated by the first end of the second transition connection tube 12 and is penetrated by the second end thereof; each of the steering units 2 comprises four traction wires, and the working state of the flexible joint part 24 of each of the steering units 2 is controlled by the control handle 21 through the traction wires. In specific implementation, N can be selectively set to be 2, 3, 4 or 5 or more, and can be selectively set according to the type of surgery and the surgical needs; in addition, in the implementation, no matter how many manipulation units 2 the surgical auxiliary instrument includes, but each manipulation unit 2 has the same structural composition and the same manipulation manner, and the difference is only in the setting of the positional relationship.

As a preferred embodiment of the present application, when the surgical auxiliary instrument includes two of the manipulation units 2, the surgical auxiliary instrument may further selectively include a position control unit 3 of the flexible joint portion, the position control unit 3 includes a push-pull rod 31, a first link 32 and a second link 33, the push-pull rod 31 is disposed in sliding fit with the base 1, the push-pull rod 31 penetrates through the first end of the second intermediate connection pipe 12 and penetrates out through the second end thereof, a first hinge position and a second hinge position are respectively disposed on two sides of a penetrating end of the push-pull rod 31, a first end of the first link 32 is hinged to the first hinge position, a second end of the first link 32 is hinged to the first end of one of the flexible joint portions 24, and a first end of the second link 33 is hinged to the second hinge position, the second end of the second connecting rod 33 is hinged with the first end of the other flexible joint part 24; when the push-pull rod 31 slides relative to the base 1, the angle between the first link 32 and the second link 33 changes, so as to adjust the working positions of the two flexible joints 24. In an implementation, a limiting hole of the push-pull rod 31 may be further selectively disposed at least one of the base 1 and the second transitional coupling pipe 12, when the push-pull rod 31 moves towards the second end of the second transitional coupling pipe 12, the push-pull rod 31 causes the angle of the two flexible joints 24 to increase through the first connecting rod 32 and the second connecting rod 33, and when the push-pull rod 31 moves towards the opposite direction, the push-pull rod 31 causes the two flexible joints 24 to approach each other through the first connecting rod 32 and the second connecting rod 33, so as to extend the flexible joints 24 and a portion of the second transitional coupling pipe 12 into the abdominal cavity.

In specific implementation, an image acquisition unit penetrating channel and an illumination unit penetrating channel are further selectively arranged in the second transition connecting pipe 12, and in the operation process, the second transition connecting pipe 12 penetrates into the abdominal cavity of the image acquisition unit and the illumination unit so that the abdominal cavity operation can be smoothly completed.

All the aforementioned embodiments, and their changeable embodiments and changeable embodiments of the present application can further selectively enable the flexible joint unit 24 to include a flexible pipe 41 and a joint assembly sleeved outside the flexible pipe 41, as shown in fig. 10 and 11 in particular, the joint assembly includes a plurality of first annular joints 42 and a plurality of second annular joints 43, the plurality of first annular joints 42 and the plurality of second annular joints 43 are sleeved outside the flexible pipe 41 at intervals, the pulling line has a predetermined pre-tightening force, so that the adjacent first annular joints 42 and the adjacent second annular joints 43 are connected in abutment with each other, an abdicating gap 5 is formed between the first annular joints 42 and the second annular joints 43 in abutment, and the abdicating gap 5 formed between the adjacent two first annular joints 42 and the second annular joints 43 therebetween is dislocated in the extending direction of the flexible joint unit 24 Arranged so that said first and second annular joints 42, 43 are relatively deflected in different directions; each first annular joint 42 is provided with a plurality of threading holes arranged along the wiring direction set by the traction wire, and each second annular joint 43 is provided with first limiting clamping grooves which are the same in number as the threading holes in the first annular joint 42 and are matched with the threading holes in a one-to-one alignment manner;

the number of the traction wires is the same as that of the threading holes in each first annular joint 42, one end of each traction wire sequentially penetrates through the threading holes in the first annular joints 42 and is fixedly connected with the extending end of each flexible joint unit, and the first limiting clamping groove in each second annular joint 43 is in limiting clamping connection with the penetrating traction wire; when the flexible joint unit works, the working position of the flexible joint unit is adjusted by pulling the traction wire.

As an alternative embodiment, in the present application, still further, optionally, in the length direction of the first annular joint 42, four first ribs are disposed on the outer side wall of the first annular joint 42, and each first rib is provided with one of the threading holes; on each first rib, at least one end of the threading hole is provided with a second limiting clamping groove which is in contraposition fit with the threading hole, each second limiting clamping groove extends along the wiring direction, and the second limiting clamping groove on each first annular joint 42 is in limiting clamping connection with a threaded traction line; on the length direction of second annular joint 43, four second beads, every have been arranged on second annular joint 43's the lateral wall to encircle it is equipped with one on the second bead first spacing draw-in groove, just first spacing draw-in groove extends the setting along the wiring direction. In specific implementation, the flexible joint unit 24 may further selectively include a limiting seat 45, the limiting seat 45 is sleeved outside the first end of the flexible pipe, the limiting seat 45 has a limiting end plane, and the limiting end plane is adjacent to the third annular joint 44; the third annular joint 44 and the second annular joint have the same structural profile, and four ribs of the third annular joint 44 are provided with threading holes arranged along a set threading direction and limiting grooves matched with the threading holes in an aligning manner.

The joint assembly formed by the plurality of first annular joints and the plurality of second annular joints which are sleeved at intervals is matched and cooperated with the traction line, so that the working range of the flexible joint unit is adjusted under the action of the traction line, and the function of adjusting the working angle of a surgical instrument in a limited working space is realized; according to the flexible joint unit, the first annular joint is provided with the threading hole, the second annular joint is provided with the first limiting clamping groove, the traction line is connected with the first annular joints and the second annular joint through the threading hole and the first limiting clamping groove, so that when the working angle of the flexible joint unit is adjusted, the first annular joint and the second annular joint have higher local freedom degree on the traction line, the flexible joint unit is prevented from causing local plastic bending to the traction line in the deflection process, and the controllability of the flexible joint unit and the reliability and safety of an operation auxiliary instrument can be effectively improved; in addition, the flexible joint unit can have a larger moving range and a larger moving angle in a limited operation space by increasing the number of the first annular joint and the second annular joint within a certain range. In addition, this application is through set up the through wires hole on the first annular joint, and further at least one side of through wires hole be equipped with the through wires hole counterpoint adaptation and along the spacing draw-in groove of the second that the wiring direction extended the setting, make the pull wire only need with the hole length shorter through wires hole adaptation alright with first annular switch with second annular switch forms reliable restraint, also can increase effectively the local degree of freedom of pull wire, and then can improve effectively the controllability of flexible joint unit and operation auxiliary instrument's reliability and security.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An auxiliary surgical instrument is characterized in that,

the device comprises a base and a control unit, wherein the control unit comprises a control handle, a catheter and a plurality of traction wires, the first end of the catheter is positioned in the base and fixedly connected with the base, the second end of the catheter penetrates out of the base, and the second end of the catheter is provided with a flexible joint part with a set length;

2. A surgical assistant according to claim 1,

the middle part of the connecting end of the control handle and the base is provided with a spherical hinge joint, the base comprises a first transition connecting pipe, the first end of the first transition connecting pipe is provided with a spherical hinge joint matched with the spherical hinge joint, and the control handle is in cross universal connection with the spherical hinge joint through the spherical hinge joint;

3. A surgical assistant according to claim 2,

the connecting end of the operating handle and the base comprises a first limiting structure and a second limiting structure which is in adaptive connection with the first limiting structure, and the first limiting structure is connected with the second limiting structure to form the spherical hinge position and four hinge seats which are uniformly distributed on the periphery of the spherical hinge position;

4. A surgical assistant according to claim 3,

the traction wire is a traction steel wire, a drift diameter shaft hole is formed in the spherical hinge body, and a first end of the traction wire is fixedly connected with the spherical hinge body through a wire clamp matched with the drift diameter shaft hole;

the wire clamp is provided with a threading hole in the length direction, and one end of the traction wire penetrates into the threading hole, so that the wire clamp is deformed and forms a locking state with a set pre-tightening force with the first end of the traction wire;

one end of the wire clamp is provided with a limiting part, one end of the drift diameter shaft hole is provided with a limiting groove matched with the limiting part, the wire clamp penetrates through the drift diameter shaft hole and is connected with the spherical hinge body in a locking manner through the limiting part and the limiting groove, and the other end of the wire clamp penetrates out of the drift diameter shaft hole and extends to a set length;

5. A surgical assistant according to claim 4,

the catheter comprises an instrument channel communicated with the two ends of the catheter and a traction wire channel which is uniformly distributed on the wall of the catheter and communicated with the two ends of the catheter;

6. A surgical assistant according to claim 5,

the control unit further comprises a transition joint pipe, a first end of the transition joint pipe is sleeved in a second end of the first transition connecting pipe and extends to the position where the wire passing hole is blocked, and a second end of the transition joint pipe is hermetically sleeved on the inner side of the first end of the guide pipe in a sealing mode;

7. A surgical aid according to any one of claims 2 to 6,

the base comprises N first transition connecting pipes and a second transition connecting pipe, the surgical auxiliary instrument comprises N control units, wherein N is a positive integer greater than or equal to 2, the control handle of each control unit is hinged with the spherical hinge of one first transition connecting pipe, and the guide pipe of each control unit is penetrated by the first end of the second transition connecting pipe and penetrated out by the second end of the second transition connecting pipe;

8. A surgical assistant according to claim 7,

the base comprises a second transition connecting pipe and two first transition connecting pipes communicated with the first end of the second transition connecting pipe, and each first transition connecting pipe extends towards one end of the second transition connecting pipe in an inclined mode and is symmetrically arranged on two sides of the same end of the second transition connecting pipe;

9. A surgical assistant according to claim 8,

the base further comprises a first shell and a second shell matched with the first shell, the first shell and the second shell are buckled with each other to form a V-shaped shell, the second end of each first transition connecting pipe is located in the V-shaped shell and is matched and fixedly connected with the V-shaped shell, the two first transition connecting pipes are symmetrically arranged, and the first end of each second transition connecting pipe is fixedly connected with the V-shaped shell;

10. A surgical assistant according to claim 9,

the surgical auxiliary instrument further comprises a position control unit of the flexible joint part, the position control unit comprises a push-pull rod, a first connecting rod and a second connecting rod, the push-pull rod is arranged in a sliding fit mode with the base, the push-pull rod penetrates through the first end of the second transition connecting pipe and penetrates out of the second end of the second transition connecting pipe, a first hinge position and a second hinge position are respectively arranged on two sides of the penetrating end of the push-pull rod, the first end of the first connecting rod is hinged to the first hinge position, the second end of the first connecting rod is hinged to the first end of one flexible joint part, the first end of the second connecting rod is hinged to the second hinge position, and the second end of the second connecting rod is hinged to the first end of the other flexible joint part;