CN110801252A

CN110801252A - Minimally invasive surgery instrument set

Info

Publication number: CN110801252A
Application number: CN201911114146.8A
Authority: CN
Inventors: 路鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-02-18

Abstract

The invention discloses a minimally invasive surgical instrument kit which comprises a retractor and a conveyor for conveying the retractor to a human body operation position, wherein the retractor comprises a clamping assembly and a linkage assembly for driving the clamping assembly to clamp or open, and the conveyor comprises a driving structure for driving the linkage structure. The invention conveys the retractor into the surgical site accessory through the conveyor, and then utilizes the retractor to retract or support the tissue organ and the like of the corresponding part, thereby providing a good surgical field for a doctor, the conveyor can be taken out after retraction, the retractor is left in the body to be continuously fixed, and the retractor can be taken out by utilizing the conveyor after the surgery is finished, thereby greatly improving the surgical speed of the doctor, providing convenience for the doctor and effectively reducing the risk caused by long surgical time.

Description

Minimally invasive surgery instrument set

Technical Field

The invention relates to the technical field of minimally invasive surgical instruments, in particular to a minimally invasive surgical instrument kit.

Background

Minimally invasive surgery, as the name implies, is minimally invasive surgery. Refers to an operation performed by using modern medical instruments such as laparoscope, thoracoscope and the like and related equipment. Minimally invasive surgery has the advantages that small trauma, light pain and quick recovery are the dream of every patient needing surgery, and the dream is realized by the minimally invasive surgery.

The existing minimally invasive surgical instruments are various and basically require doctors to operate from the outside of the human body, such as surgical scissors, graspers and the like. These surgical instruments all need the doctor to operate when using, sometimes, when carrying out the operation, the position that needs the target to can be sheltered from or covered by the tissue apparatus official etc. in patient's abdominal cavity, then need the doctor to reuse current apparatus instrument to open, support this moment, have so very big degree hindered the operation to go on, delayed the time of operation, have increased the risk of operation in the intangible.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a minimally invasive surgical instrument kit which can be used for exposing a surgical part conveniently without manually retracting and fixing tissues and organs by a doctor and is beneficial to the doctor to perform surgery.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a minimally invasive surgical instrument kit comprises a retractor and a conveyor for conveying the retractor to a human operation position, wherein the retractor comprises a clamping assembly and a linkage assembly for driving the clamping assembly to clamp or open, and the conveyor comprises a driving structure for driving the linkage structure.

Further, the centre gripping subassembly includes two clamp splices, the linkage subassembly include with two clamp splices articulated set casing and with set casing sliding connection's linkage, be equipped with linkage structure between linkage and the clamp splices, order about two clamp splices and open and shut when making the relative slip take place between linkage and the set casing, be equipped with the elasticity piece that resets between linkage and the set casing, when the elasticity piece that resets is under natural state, the clamp splices is in the state of closing.

Further, the drive structure includes hook stem, fixed ejector pin and sets up the hook on the linkage, the one end of hook stem is equipped with the shackle, hook stem and fixed ejector pin sliding connection, the slip direction is the length direction along the hook stem, fixed ejector pin is used for offsetting so that hook stem pulling linkage slides with fixed shell.

Further, the fixed ejector rod is a cylinder which is coated on the outer side of the hook rod and is concentrically arranged with the hook rod, and when the fixed ejector rod is abutted against the fixed shell, the hook on the linkage piece is completely retracted into the fixed ejector rod. The retractor is arranged in such a way that the hook of the retractor can be retracted into the fixed ejector rod, and the risk that the hook is hooked to internal tissues and organs of a human body to cause injury when the conveyor drives the retractor to enter the human body is reduced.

Further, the conveyer still includes the pulling subassembly that is used for pulling the hooked pole, the pulling subassembly includes the rifle body, fixed ejector pin is fixed to be set up on the rifle body, set up the inner chamber in the rifle body, the hooked pole does not have the one end of shackle and stretches into the inner chamber to be equipped with the rod cover, rod cover sliding connection is in the inner chamber to with the hooked pole axial fixity, be connected with the handle on the rod cover, the handle stretches out outside the rifle body. The hook rod is convenient to operate and pull by hands, and the structure suitable for manual operation is more suitable for minimally invasive surgery with extremely small wounds, so that the operation of doctors can be more facilitated.

Furthermore, an elastic piece is arranged in the inner cavity, one end of the elastic piece is abutted against the inner wall of the inner cavity, and the other end of the elastic piece is abutted against the end part of the rod sleeve.

Further, still be equipped with the auto-lock structure that is used for with the hook rod position locking in the position that dead lever and fixed shell offset on the rifle body, the auto-lock structure is including articulating the locking piece on the rifle body, be equipped with the wedge on the locking piece, the wedge stretches into the intracavity, be equipped with the dog on the rod cover, when hook rod pulling linkage slides, the dog is stirred the locking piece and is rotated to rotate the wedge face of wedge to return with the plane parallel restriction rod cover of dog. The hook rod is arranged in such a way that when the hook rod extends into a human body, the positions of the retractor and the fixed ejector rod can be locked, so that the hook can not be exposed, the tissue and the organ of the human body are injured, the retractor and the conveyor can be fixed in a relatively static state, and the clamping operation is conveniently aligned.

Furthermore, a first limiting assembly used for limiting the locking block to be in an unlocked state and a second limiting assembly used for limiting the locking block to be in a locked state are arranged between the locking block and the gun body. The self-locking mechanism is arranged in such a way, so that the self-locking of the self-locking structure can be facilitated, and the locking block can not be automatically unlocked under the influence of gravity or other factors due to the state of the conveyor in use.

Furthermore, the rod sleeve is rotatably connected with the hook rod, the rotating direction is in the same direction with the circumferential direction of the hook rod, and the gun body is provided with an adjusting piece which is coaxially and rotatably connected with the hook rod. The clamping assembly is arranged in such a way that the inner part can be rotationally adjusted in the using process so as to better adjust the clamping position of the clamping assembly.

Furthermore, a coating loop bar is arranged on the gun body, the coating loop bar is coaxially arranged on the outer side of the fixed ejector rod, the coating loop bar is detachably connected with the gun body, the inner diameter of the coating loop bar is not less than the maximum width of the retractor, and the length of the coating loop bar is not less than the maximum length of the retractor. By the arrangement, all structures of the retractor can be wrapped into the retractor at one time through the wrapping sleeve rod, the retractor is conveniently conveyed into a human body from the Trocar hole by the conveyor, and the wrapping sleeve rod can be pulled up in a sliding mode after the retractor is conveyed into the human body, so that the whole retractor is exposed for operation.

Compared with the prior art, the invention has the following advantages:

the invention conveys the retractor into the surgical site accessory through the conveyor, and then utilizes the retractor to retract or support the tissue organ and the like of the corresponding part, thereby providing a good surgical field for a doctor, the conveyor can be taken out after retraction, the retractor is left in the body to be continuously fixed, and the retractor can be taken out by utilizing the conveyor after the surgery is finished, thereby greatly improving the surgical speed of the doctor, providing convenience for the doctor and effectively reducing the risk caused by long surgical time.

Drawings

FIG. 1 is a schematic view of the overall structure of a minimally invasive surgical instrument kit;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic top view of the transporter of the minimally invasive surgical instrument kit;

FIG. 4 is a schematic view of the internal structure of the transporter portion of the minimally invasive surgical instrument kit;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

FIG. 6 is an enlarged schematic view of a portion C of FIG. 4;

FIG. 7 is a schematic view of the internal structure of the conveyor of the minimally invasive surgical instrument suite in a partially self-locking state;

FIG. 8 is an enlarged view of portion D of FIG. 7;

FIG. 9 is a schematic view of a retractor of a minimally invasive surgical instrument kit;

FIG. 10 is a schematic view of the internal structure of a retractor of a minimally invasive surgical instrument set

Description of reference numerals: 1. a conveyor; 21. a shackle; 22. a hook rod; 23. fixing the ejector rod; 24. coating the loop bar; 25. an adjustment member; 31. a gun body; 311. an inner cavity; 32. a rod sleeve; 321. a handle; 322. a stopper; 33. an elastic member; 4. a self-locking structure; 41. a locking block; 42. a wedge block; 43. a first limit component; 44. a second limiting component; 5. a retractor; 51. a clamping block; 52. a stationary case; 53. a linkage member; 54. an elastic reset member; 55. hooking; 56. a slider; 57. a chute.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Examples

As shown in fig. 1, a minimally invasive surgical instrument kit comprises a retractor 5 and a conveyor 1, wherein the retractor 5 is used for being placed in a human body to clamp tissues and organs so as to perform the functions of retraction, and the like, and the conveyor 1 is matched with the retractor 5 and used for conveying the retractor 5 into the human body and is matched and linked with the retractor 5 so as to achieve the corresponding purpose and effect. The retractor 5 includes a gripping assembly and a linkage assembly for driving the gripping assembly to grip or release, and the transporter 1 includes a driving structure for driving the linkage structure.

As shown in fig. 9 and 10, the clamping assembly includes two clamping blocks 51, and the shape structure of the clamping blocks 51 can be adjusted, and can be a planar block structure, a hook 55-shaped structure, or the like. The linkage assembly comprises a fixed shell 52 hinged with the two clamping blocks 51 and a linkage piece 53 in sliding connection with the fixed shell 52, and a linkage structure is arranged between the linkage piece 53 and the clamping blocks 51, so that the linkage piece 53 and the fixed shell 52 drive the two clamping blocks 51 to open and close when sliding relatively. Specifically, the linkage structure is a structure of a sliding block 56 and a sliding groove 57 in this embodiment, the sliding block 56 is fixedly disposed on the linkage member 53, the sliding groove 57 is disposed at a corresponding position on the clamping block 51, and when the linkage member 53 and the fixed shell 52 slide relatively, because the clamping block 51 is hinged to the fixed shell 52, the clamping block 51 can be opened and closed together under the matching of the sliding block 56 and the sliding groove 57, so as to achieve a linkage effect. The linkage structure is not necessarily the structure shown in this embodiment, but may be a manner of pulling the clamp block 51 to open or close through the elastic member, and the like, and only needs to complete the corresponding function. An elastic reset piece 54 is arranged between the linkage piece 53 and the fixed shell 52, and when the elastic reset piece 54 is in a natural state, the clamping block 51 is in a closed state. In order to minimize the maximum width of the retractor 5, the linkage 53 and the housing 52 can be arranged coaxially, i.e., the linkage 53 is disposed inside the housing 52 to better deliver the retractor 5 into the body. The retractor 5 is not limited to the above structure, and the retractor 5 may be composed of a plurality of the above structures, or even be connected with other required structures, and may be modified according to the required effect.

As shown in fig. 1 to 5, the driving structure includes a hook rod 22, a fixed top rod 23 and a hook 55 disposed on the linkage member 53, one end of the hook rod 22 is provided with a hook ring 21, the hook rod 22 is slidably connected with the fixed top rod 23, the sliding direction is along the length direction of the hook rod 22, and the fixed top rod 23 is used for abutting against the fixed shell 52 so that the hook rod 22 pulls the linkage member 53 to slide. Therefore, when in use, the fixed top rod 23 is only required to be abutted against the fixed shell 52, and then the linkage piece 53 is pulled through the hook rod 22, so that the linkage piece 53 and the fixed shell 52 relatively slide, and the opening and closing of the clamping block 51 can be controlled. Similarly, the linkage member 53 and the fixed shell 52 are coaxially arranged, the fixed ejector 23 is a cylinder concentrically arranged with the hook rod 22 and covering the outer side thereof, and the hook 55 on the linkage member 53 is completely received in the fixed ejector 23 when the fixed ejector 23 abuts against the fixed shell 52. By the arrangement, the structure of the retractor 5 can be matched, the hook 55 of the retractor 5 can be retracted into the fixed ejector rod 23, and the risk that the hook 55 damages internal tissues and organs of a human body when the conveyor 1 drives the retractor 5 into the human body is reduced.

Conveyer 1 still includes the pulling subassembly that is used for pulling hook rod 22, the pulling subassembly includes the rifle body 31, fixed ejector pin 23 is fixed to be set up the position department of rifle head on the rifle body 31, the inside inner chamber 311 of having seted up of rifle body 31, hook rod 22 does not have the one end of shackle 21 and stretches into in the inner chamber 311 from rifle head department, one section cladding that stretches into inner chamber 311 has rod cover 32, the shape of rod cover 32 is cylindrical, inner chamber 311 shape is rather than the same, so that rod cover 32 sliding connection is in inner chamber 311, be equipped with elastic component 33 in the inner chamber 311, elastic component 33 one end and inner chamber 311 inner wall butt, the other end and the butt of rod cover 32 tip. The sliding sleeve is axially fixed with the hook rod 22, the rod sleeve 32 is connected with a handle 321, and the handle 321 extends out of the gun body 31 so as to be convenient for manual operation. When the hook rod 22 is used, the handle 321 can be pulled by a hand to pull the hook rod 22 towards the direction in the gun body 31, so that the hook rod 22 can be pulled by the hand, and the structure which is operated by the hand is more suitable for minimally invasive surgery with minimal wound, and the operation of a doctor is facilitated. In order to adjust the inner part in a rotating way in the using process so as to better adjust the clamping position of the clamping assembly, the rod sleeve 32 is connected with the hook rod 22 in a rotating way, the rotating direction is the same as the circumferential direction of the hook rod 22, the gun body 31 is provided with an adjusting piece 25 which is connected with the hook rod 22 in a rotating way coaxially, and the position of the adjusting piece 25 is also arranged at the position of the gun head of the gun body 31.

The gun body 31 is provided with a coating loop bar 24, the coating loop bar 24 is coaxially arranged outside the fixed ejector rod 23, the coating loop bar 24 is detachably connected with the gun body 31, specifically in the embodiment, the coating loop bar 24 is in threaded connection, the threaded connection position is in front of the adjusting piece 25, the coating loop bar 24 is disconnected with the gun body 31 by rotating the coating loop bar 24, so that the coating loop bar 24 can freely slide on the fixed ejector rod 23, and the detachable connection mode is not unique, and the description is not excessively expanded. The inner diameter of the covering sleeve rod 24 must not be less than the maximum width of the retractor 5 and the length of the covering sleeve rod 24 is not less than the maximum length of the retractor 5. The coating sleeve rod 24 is arranged in this way, all structures of the retractor 5 can be coated into the interior of the retractor at one time, the conveyor 1 is favorable for conveying the retractor 5 into a human body from a Trocar hole, and after the retractor is conveyed into the human body, the coating sleeve rod 24 can be pulled up in a sliding mode, so that the whole retractor 5 is exposed for operation. The term "retractor 5" as used herein is not limited to the single retractor 5 described above, and refers to the retractor 5 used in actual use, and therefore the length of the covering sleeve 24 may be as long as possible to ensure that the cover covers as many of the retractor 5 types actually used.

As shown in fig. 6 to 8, the gun body 31 is further provided with a self-locking structure 4 for locking the position of the hook rod 22 at a position where the fixing rod abuts against the fixing shell 52, the self-locking structure 4 is arranged at the top of the gun body 31 and comprises a locking block 41 hinged on the gun body 31, the locking block 41 is provided with a wedge block 42, the wedge block 42 extends downwards into the inner cavity 311, the rod sleeve 32 is provided with a stopper 322, when the hook rod 22 pulls the linkage member 53 to slide, the stopper 322 pulls the locking block 41 to rotate, so that the wedge surface of the wedge block 42 is rotated to be parallel to the plane of the stopper 322 to limit the return of the rod sleeve 32. A first limiting component 43 for limiting the locking block 41 to be in an unlocked state and a second limiting component 44 for limiting the locking block 41 to be in a locked state are also arranged between the locking block 41 and the gun body 31. The first position-limiting component 43 and the second position-limiting component 44 can be made of magnets, etc. which are easy to be detached, and have a certain fixing function.

The arrangement is that when the hook rod 22 extends into the human body, the positions of the retractor 5 and the fixed mandril 23 can be locked, so that the hook 55 can not be exposed, the tissue and the organ of the human body can be injured, the retractor 5 and the conveyor 1 can be fixed in a relatively static state, and the alignment and clamping operation is convenient. Meanwhile, the limiting assembly can be beneficial to self-locking of the self-locking structure 4, and the locking block 41 cannot be automatically unlocked under the influence of gravity or other factors due to the state of the conveyor 1 in use.

Specifically, the hinged position of the locking block 41 is a position where the middle part of the length of the locking block is deviated to a position far away from the muzzle (the direction of the deviation to the position far away from the muzzle is the rear, and the direction of the position close to the muzzle is the front), the position of the wedge-shaped block 42 is arranged behind the hinged position of the locking block 41, and the inclined plane direction is inclined in the backward direction at the rear of the rod sleeve 32, the top surface of the wedge-shaped block 42 and the locking block 41 are directly provided with springs, the wedge-shaped block 42 is downwards abutted against the rod sleeve 32 under the action of the springs, the stopper 322 is also provided with a wedge-shaped surface, the inclined direction of the wedge-shaped surface is downwards inclined in the backward direction, when the rod sleeve 32 is pulled to slide backwards, the wedge-shaped surface is abutted against the plane of the wedge-shaped block 42, the locking block 41 is shifted to rotate, the first limiting component 43 is released, so that the inclined, and the second limit component 44 is matched for limitation, at this time, when the rod sleeve 32 returns under the action of the elastic element 33, the plane of the stop block 322 is abutted against the inclined plane, and the two surfaces are parallel, so that the locking block 41 cannot be pushed to rotate, and the self-locking is completed. When unlocking, the locking block 41 is manually pulled open, so that the first limiting component 43 is matched with and limits the position of the locking block 41, and the rod sleeve 32 can be abutted to the inclined surface of the wedge block 42 under the action of the elastic component 33, so as to smoothly return to the initial position.

Regarding the self-locking structure 4, those skilled in the art should be able to think of other structures capable of achieving the same function, and the solution in the present embodiment is only a single technical solution used in the present application, and does not mean that only this kind of structure can be used to achieve the corresponding function, and other related structures capable of achieving the same function are not described herein too much.

In actual use, the hook rod 22 of the conveyor 1 is matched with the hook 55 of the retractor 5, the hook 55 of the retractor 5 is retracted into the fixed ejector rod 23 by the self-locking structure 4, all structures of the retractor 5 are retracted by the covering sleeve rod 24 and are conveyed into a human body from the Trocar hole, the covering sleeve rod 24 is retracted to expose the retractor 5, the clamping block 51 of the retractor 5 is controlled to clamp by the pulling assembly of the conveyor 1, the self-locking can be released after the action is finished, the conveyor 1 is taken out, and a doctor formally performs an operation by using required instruments. After the operation is completed, all the steps can be completed by taking out the retractor 5 through the conveyor 1.

According to the invention, the retractor 5 is conveyed into the surgical site accessory through the conveyor 1, and then the retractor 5 is used for retracting or supporting the tissue organ and the like of the corresponding part, so that a good surgical field of vision is provided for a doctor, the conveyor 1 can be taken out after retraction, the retractor 5 is left in the body for continuous fixation, and can be taken out by the conveyor 1 after the surgery is finished, so that the surgical speed of the doctor is greatly improved, the convenience is provided for the doctor, and the risk caused by long surgical time is effectively reduced.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.

Claims

1. A minimally invasive surgical instrument kit, comprising: the retractor comprises a retractor (5) and a conveyor (1) used for conveying the retractor (5) to a human body operation position, wherein the retractor (5) comprises a clamping assembly and a linkage assembly used for driving the clamping assembly to clamp or unclamp, and the conveyor (1) comprises a driving structure used for driving the linkage structure.

2. The minimally invasive surgical instrument kit of claim 1, wherein: the clamping assembly comprises two clamping blocks (51), the linkage assembly comprises a fixed shell (52) hinged to the two clamping blocks (51) and a linkage piece (53) connected with the fixed shell (52) in a sliding mode, a linkage structure is arranged between the linkage piece (53) and the clamping blocks (51), the two clamping blocks (51) are driven to open and close when the linkage piece (53) and the fixed shell (52) slide relatively, an elastic reset piece (54) is arranged between the linkage piece (53) and the fixed shell (52), and when the elastic reset piece (54) is in a natural state, the clamping blocks (51) are in a closed state.

3. The minimally invasive surgical instrument kit of claim 2, wherein: the driving structure comprises a hook rod (22), a fixed ejector rod (23) and a hook (55) arranged on a linkage piece (53), wherein a hook ring (21) is arranged at one end of the hook rod (22), the hook rod (22) is in sliding connection with the fixed ejector rod (23), the sliding direction is the length direction along the hook rod (22), and the fixed ejector rod (23) is used for abutting against a fixed shell (52) so that the hook rod (22) pulls the linkage piece (53) to slide.

4. The minimally invasive surgical instrument kit of claim 3, wherein: the fixed ejector rod (23) is a cylinder which is coated on the outer side of the hook rod (22) and is concentrically arranged with the hook rod, and when the fixed ejector rod (23) abuts against the fixed shell (52), the hook (55) on the linkage piece (53) is completely retracted into the fixed ejector rod (23).

5. The minimally invasive surgical instrument kit of claim 4, wherein: conveyer (1) is still including the pulling subassembly that is used for pulling hook rod (22), the pulling subassembly includes rifle body (31), fixed ejector pin (23) are fixed to be set up on rifle body (31), interior chamber (311) have been seted up in rifle body (31), hook rod (22) do not have the one end of shackle (21) to stretch into in interior chamber (311) to be equipped with rod cover (32), rod cover (32) sliding connection is in interior chamber (311) to with hook rod (22) axial fixity, be connected with handle (321) on rod cover (32), handle (321) stretch out outside rifle body (31).

6. The minimally invasive surgical instrument kit of claim 5, wherein: an elastic piece (33) is arranged in the inner cavity (311), one end of the elastic piece (33) is abutted against the inner wall of the inner cavity (311), and the other end of the elastic piece is abutted against the end part of the rod sleeve (32).

7. The minimally invasive surgical instrument kit of claim 5, wherein: still be equipped with on the rifle body (31) and be used for the auto-lock structure (4) with hook rod (22) position locking in the position that dead lever and fixed shell (52) offset, auto-lock structure (4) are including articulating locking block (41) on the rifle body (31), be equipped with wedge block (42) on locking block (41), wedge block (42) stretch into in inner chamber (311), be equipped with dog (322) on rod cover (32), when hook rod (22) pulling linkage (53) slide, locking block (41) are stirred in dog (322) and are rotated to rotate the wedge surface of wedge block (42) to the plane parallel restriction rod cover (32) with dog (322) and return.

8. The minimally invasive surgical instrument kit of claim 7, wherein: a first limiting component (43) used for limiting the locking block (41) to be in a non-locking state and a second limiting component (44) used for limiting the locking block (41) to be in a locking state are arranged between the locking block (41) and the gun body (31).

9. The minimally invasive surgical instrument kit of claim 5, wherein: the rod sleeve (32) is rotatably connected with the hook rod (22), the rotating direction is in the same direction with the circumferential direction of the hook rod (22), and the gun body (31) is provided with an adjusting piece (25) which is coaxially and rotatably connected with the hook rod (22).

10. The minimally invasive surgical instrument kit of claim 5, wherein: the multifunctional telescopic type telescopic.