CN219461251U

CN219461251U - Novel retractor for laparoscope

Info

Publication number: CN219461251U
Application number: CN202320379253.9U
Authority: CN
Inventors: 李松; 侯俊清; 秦长江; 王绍利; 鲍登科
Original assignee: Henan University
Current assignee: Henan University
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-08-04
Anticipated expiration: 2033-03-03

Abstract

The utility model relates to the technical field of medical appliances, and provides a novel retractor for a laparoscope, which comprises a separation retractor, an operating rod and an operating handle which are sequentially connected; the separating drag hook comprises a main connecting blade, a first side blade, a second side blade, a first connecting blade and a second connecting blade; the operating rod is internally provided with a first control pull rod and a second control pull rod, the top end of the first control pull rod is connected with the bottom end of the first side blade, and the top end of the second control pull rod is connected with the bottom end of the second side blade; the operating handle includes flexible piston, and flexible piston is located inside the action bars, and flexible piston's top is connected with the bottom of first control pull rod and second control pull rod respectively, and the cooperation through flexible piston, first handle and second handle is controlled the opening and shutting of separation drag hook to pass through laparoscopic path business turn over abdominal cavity through closed separation drag hook, solved the great drag hook of conventional open operation can't get into problem through the tiny channel.

Description

Novel retractor for laparoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a novel retractor for a laparoscope.

Background

Minimally invasive surgery refers to surgery performed by using modern medical instruments such as laparoscopes, thoracoscopes and the like and related equipment, and has the greatest advantages of performing surgery by using a micro incision channel or a natural human body channel, along with small incision, small wound and quick recovery.

Along with the development of related fields such as material science, electronics, optics and the like and the accumulation of clinical experience, the minimally invasive laparoscopic surgery has wider application range and higher surgery success rate. The laparoscopic surgery is performed through a micro-channel, the peripheral tissue organs are required to be pushed open by the conventional abdominal or thoracic surgery, the surgical field is enlarged, and the large retractor of the conventional open surgery cannot enter through the micro-channel because the laparoscopic micro-channel is smaller.

Disclosure of Invention

In order to solve the problem that a large retractor for conventional open surgery cannot enter through a passage because a laparoscopic passage is smaller, the utility model provides a novel retractor for laparoscope, and the problems are solved by arranging a separation retractor capable of controlling opening and closing.

A novel retractor for a laparoscope comprises a separation retractor, an operating rod and an operating handle which are connected in sequence;

the separating drag hook comprises a main connecting blade, a first side blade, a second side blade, a first connecting blade and a second linkage blade, wherein the main connecting blade is in sliding connection with the top end of the operating rod, the first side blade and the second side blade are respectively arranged on two sides of the main connecting blade and are in sliding connection with the main connecting blade and are used for pushing away surrounding tissue organs, one end of the first connecting blade is connected with the top end of the main connecting blade, the other end of the first connecting blade is connected with the top end of the first side blade, one end of the second linkage blade is connected with the top end of the main connecting blade, and the other end of the second linkage blade is connected with the top end of the second side blade;

the control device comprises an operating rod, a first control pull rod and a second control pull rod, wherein the operating rod is internally provided with the first control pull rod, the top end of the first control pull rod is connected with the bottom end of a first side blade, and the top end of the second control pull rod is connected with the bottom end of a second side blade;

the operating handle comprises a telescopic piston, the telescopic piston is positioned inside the operating rod, and the top end of the telescopic piston is respectively connected with the bottom ends of the first control pull rod and the second control pull rod.

Further, the main connecting vane is provided with a sliding groove, a sliding shaft is arranged in the sliding groove, and the first side vane, the second side vane and the operating rod are respectively connected with the sliding groove in a sliding way through the sliding shaft.

Further, the operating handle further comprises a first handle and a second handle which are mutually hinged, the first handle is connected with the bottom end of the operating rod, and the second handle is connected with the bottom of the telescopic piston.

Further, the telescopic piston comprises a piston head, a connecting rod and a reset spring, one end of the connecting rod is connected with the piston head, the other end of the connecting rod is connected with the second handle, and the reset spring is sleeved on the connecting rod and is located between the second handle and the piston head.

Further, the top end of the operating rod is provided with a fixing piece, the fixing piece comprises a first fixing piece and a second fixing piece, and the first fixing piece and the second fixing piece are in sliding connection with the sliding groove through a sliding shaft.

Further, the top of the main connecting blade is provided with a rotating shaft, and the first connecting blade and the second connecting blade are respectively connected with the main connecting blade through the rotating shaft.

Further, the first side blade and the second side blade are identical in size and symmetrically arranged, and the first linkage blade and the second linkage blade are identical in size and symmetrically arranged.

Further, the first control pull rod and the second control pull rod are arranged in a crossed mode.

The utility model has the advantages that:

the utility model adopts the separating drag hook capable of opening and closing, the opening and closing of the separating drag hook are controlled through the first control pull rod and the second control pull rod by matching the telescopic piston, the first handle and the second handle, so that the separating drag hook enters the abdominal cavity through the laparoscopic channel by closing the separating drag hook, the separating drag hook is opened to push the surrounding tissue organs to enter, and the separating drag hook is closed to exit through the laparoscopic channel after the operation is finished, thereby solving the problem that the larger drag hook cannot enter through the micro channel in the conventional open operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the connection structure of the separating drag hook and the operating lever of the present utility model;

FIG. 3 is a schematic illustration of the internal connection structure of the present utility model;

fig. 4 is a schematic view showing the closed state of the separator drag hook of the present utility model.

Reference numerals illustrate:

1. separating the drag hook; 2. an operation lever; 3. an operation handle; 11. a main connecting blade; 12. a first side blade; 13. a second side blade; 14. a first connecting blade; 15. a second linkage blade; 21. a first control pull rod; 22. a second control pull rod; 23. a fixing member; 31. a first handle; 32. a second handle; 33. a telescoping piston; 111. a sliding groove; 112. a sliding shaft; 113. a rotating shaft; 231. a first fixing piece; 232. a second fixing piece; 331. a piston head; 332. a connecting rod; 333. and a return spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, the mounting modes and technical terms mentioned in the present utility model are technical terms already known in the art, so that they are not explained too much. Moreover, the same reference numerals are used for the same components, which do not affect nor should they constitute an accurate understanding of the technical solution by a person skilled in the art.

The description is made in connection with fig. 1 to 3:

the novel retractor for the laparoscope comprises a separation retractor 1, an operating rod 2 and an operating handle 3 which are connected in sequence; the separation drag hook 1 comprises a main connecting blade 11, a first side blade 12, a second side blade 13, a first connecting blade 14 and a second connecting blade 15, wherein the main connecting blade 11 is in sliding connection with the top end of the operating rod 2, the first side blade 12 and the second side blade 13 are respectively arranged on two sides of the main connecting blade 11 and are in sliding connection with the main connecting blade 11 and are used for pushing away surrounding tissue organs, and the first side blade 12 and the second side blade 13 are identical in size and are symmetrically arranged. One end of the first linkage blade 14 is connected with the top end of the main connection blade 11, the other end is connected with the top end of the first side blade 12, one end of the second linkage blade 15 is connected with the top end of the main connection blade 11, the other end is connected with the top end of the second side blade 13, and the first linkage blade 14 and the second linkage blade 15 are identical in size and symmetrically arranged.

When the separating drag hook is in an open state, the first side blade 12 and the second side blade 13 and the main connecting blade 11 are fanned out, and the first linking blade 14 and the second linking blade are used for limiting the unfolding distance of the first side blade 12 and the second side blade 13 relative to the main connecting blade 11.

The operating rod 2 is of a hollow structure, a first control pull rod 21 and a second control pull rod 22 are arranged in the operating rod, the top end of the first control pull rod 21 is connected with the bottom end of the first side blade 12, and the top end of the second control pull rod 22 is connected with the bottom end of the second side blade 13; the operating handle 3 includes a telescopic piston 33, the telescopic piston 33 is located inside the operating lever 2, and the top end of the telescopic piston 33 is connected to the first control lever 21 and the second control lever 22, respectively. The operating handle 3 controls the opening and closing state of the separating drag hook through the extension and contraction of the first control pull rod 21 and the second control pull rod 22 through the extension and contraction piston 33. The first control rod 21 and the second control rod 22 are arranged crosswise.

The main connecting vane 11 is provided with a sliding groove 111, a sliding shaft 112 is arranged in the sliding groove 111, and the first side vane 12, the second side vane 13 and the operating rod 2 are respectively arranged in the sliding groove 111 through the sliding shaft 112 and slide along the sliding groove 111. The top end of the main connecting blade 11 is provided with a rotating shaft 113, and the first linking blade 14 and the second linking blade 15 are respectively connected with the main connecting blade 11 through the rotating shaft 113.

The operating handle 3 further comprises a first handle 31 and a second handle 32 which are hinged with each other, the first handle 31 is connected with the bottom end of the operating rod 2, the second handle 32 is connected with the bottom of the telescopic piston 33, the telescopic piston 33 is located at the inner bottom of the operating rod 2, the telescopic piston 33 comprises a piston head 331 located in the operating rod 2, a connecting rod 332 connected with the piston head 331 and a return spring 333, one end, far away from the piston head, of the connecting rod 332 extends to the outside of the operating rod 2 and is connected with the second handle 32, and the return spring 333 is sleeved on the connecting rod 332 and located between the operating rod 2 and the piston head 331.

The top end of the operating rod 2 is further provided with a fixing piece 23, the fixing piece 23 comprises a first fixing piece 231 and a second fixing piece 232, and the first fixing piece 231 and the second fixing piece 232 are in sliding connection with the sliding groove 111 through the sliding shaft 112. The sliding shaft 112 sequentially penetrates the first fixing piece 231, the first side blade 12, the sliding groove 111, the second side blade 13, and the second fixing piece 232.

Working principle:

as described with reference to fig. 4, the initial state of the present utility model is that the separating drag hook is in an open state, when the separating drag hook is required to be retracted to a closed state, the first handle 31 and the second handle 32 are pressed to control the first control pull rod 21 and the second control pull rod 22 to retract so that the first side blade 12 and the second side blade 13 are simultaneously close to the main connecting blade 11, and the sliding shaft 112 slides upwards along the sliding groove 111, so that the main connecting blade 11 moves towards the inside of the operating rod 2, and simultaneously drives the first connecting blade 14 and the second linking blade 15 to move towards the direction approaching the main connecting blade 11, and finally the first side blade 12, the second side blade 13, the first connecting blade 14 and the second linking blade 15 are retracted to be in a mutually parallel state. The return spring 333 is compressed during the squeezing process, and when the first handle 31 and the second handle 32 are released, the squeezed first handle 31 and second handle 32 can be restored to the original state, and the separating retractor is opened.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present utility model should be included in the scope of the technical solutions of the present utility model.

Claims

1. The novel retractor for the laparoscope is characterized by comprising a separation retractor (1), an operating rod (2) and an operating handle (3) which are connected in sequence;

the separating drag hook (1) comprises a main connecting blade (11), a first side blade (12), a second side blade (13), a first connecting blade (14) and a second connecting blade (15), wherein the main connecting blade (11) is in sliding connection with the top end of the operating rod (2), the first side blade (12) and the second side blade (13) are respectively arranged at two sides of the main connecting blade (11) and are in sliding connection with the main connecting blade (11) and are used for pushing away surrounding tissue organs, one end of the first connecting blade (14) is connected with the top end of the main connecting blade (11), the other end of the first connecting blade is connected with the top end of the first side blade (12), one end of the second connecting blade (15) is connected with the top end of the main connecting blade (11), and the other end of the second connecting blade is connected with the top end of the second side blade (13);

a first control pull rod (21) and a second control pull rod (22) are arranged in the operating rod (2), the top end of the first control pull rod (21) is connected with the bottom end of the first side blade (12), and the top end of the second control pull rod (22) is connected with the bottom end of the second side blade (13);

the operating handle (3) comprises a telescopic piston (33), the telescopic piston (33) is positioned inside the operating rod (2), and the top ends of the telescopic piston (33) are respectively connected with the bottom ends of the first control pull rod (21) and the second control pull rod (22).

2. The novel retractor for laparoscope according to claim 1, wherein the main connecting blade (11) is provided with a sliding groove (111), a sliding shaft (112) is arranged in the sliding groove (111), and the first side blade (12), the second side blade (13) and the operating rod (2) are respectively connected with the sliding groove (111) in a sliding way through the sliding shaft (112).

3. The novel laparoscope retractor according to claim 2, wherein the operating handle (3) further comprises a first handle (31) and a second handle (32) which are hinged to each other, the first handle (31) is connected with the bottom end of the operating rod (2), and the second handle (32) is connected with the bottom of the telescopic piston (33).

4. A novel laparoscopic retractor according to claim 3, wherein the telescopic piston (33) comprises a piston head (331), a connecting rod (332) and a return spring (333), one end of the connecting rod (332) is connected with the piston head (331), the other end is connected with the second handle (32), and the return spring (333) is sleeved on the connecting rod (332) and is located between the second handle (32) and the piston head (331).

5. The novel laparoscope retractor according to claim 2, wherein the top end of the operating rod (2) is provided with a fixing piece (23), the fixing piece (23) comprises a first fixing piece (231) and a second fixing piece (232), and the first fixing piece (231) and the second fixing piece (232) are slidably connected with the sliding groove (111) through a sliding shaft (112).

6. The novel laparoscope retractor according to claim 1, wherein the top end of the main connecting blade (11) is provided with a rotating shaft (113), and the first linking blade (14) and the second linking blade (15) are connected with the main connecting blade (11) through the rotating shaft (113) respectively.

7. The novel laparoscope retractor according to claim 1, wherein the first side blade (12) and the second side blade (13) are identical in size and symmetrically arranged, and the first linking blade (14) and the second linking blade (15) are identical in size and symmetrically arranged.

8. A novel laparoscopic retractor according to claim 1, wherein the first control rod (21) and the second control rod (22) are arranged crosswise.