CN211213470U

CN211213470U - Electric hook for minimally invasive endoscopic surgery

Info

Publication number: CN211213470U
Application number: CN201921125246.6U
Authority: CN
Inventors: 陈少慕
Original assignee: First Affiliated Hospital of Suzhou University
Current assignee: First Affiliated Hospital of Suzhou University
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-08-11
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses an electric hook for minimally invasive endoscopic surgery, which comprises a hook head and a hook body, wherein the hook body is formed by concentrically nesting a first round pipe and a second round pipe from inside to outside in sequence, and the front end part of the first round pipe extends out of the second round pipe and is connected with the hook head through a bending part; the bending part comprises a front bending section fixedly connected with the hook head, a rear bending section sleeved in the first round pipe, a bending section group connected with the front bending section and the rear bending section, a sliding ferrule, an elastic ring and a positioning ring which are sequentially sleeved on the rear bending section from front to back, and a pull rod steel wire connected with the front end of the bending section group and the sliding ferrule; the bar gear hole has been seted up on first pipe simultaneously to be provided with the ejector pad on bar gear hole, the ejector pad passes through the connecting rod with the slip lasso and is connected, the utility model has the advantages of, set up the flexible structure in gib head position, realize the purpose of gib head turn, the disease position that straight tube formula electric hook can't reach can be reached to effectual implementation operation.

Description

Electric hook for minimally invasive endoscopic surgery

Technical Field

The utility model belongs to the technical field of medical auxiliary instrument, especially, relate to an electric hook for minimal access laparoscopic surgery.

Background

Minimally invasive endoscopic surgery is a surgical development trend, has less damage to tissues than traditional surgical operations, can shorten average hospitalization time, relieve pain brought to patients by the operations, and enable the patients to recover quickly after the operations. The electric hook is one of the most frequently used instruments in endoscopic surgery, plays an irreplaceable role in the operations of electric coagulation hemostasis and tissue separation, but often meets the problems that the deep tissue cannot contact the tissue or the tissue is close to the skin, the electric hook is too long, and the operation is inconvenient. The length of the current electric hook for clinical application is not adjustable, and the electric hooks with different specifications are frequently required to be frequently replaced according to the operation of different parts, thereby delaying the operation time and increasing the probability of pollution in the operation; meanwhile, the existing electric hook mainly adopts a straight pipe type structure, and some places are not easy to reach in the minimally invasive surgery process, so that the difficulty of the surgery is directly influenced, and the surgery cannot be completed even.

Disclosure of Invention

The utility model aims at providing an electric hook for minimal access laparoscopic surgery sets up the flexible structure in gib head position, realizes the purpose of gib head turn, can reach the disease position that straight tube formula electric hook can't reach to effectual implementation operation.

The technical scheme of the utility model is that: an electric hook for minimally invasive endoscopic surgery comprises a hook head and a hook body, wherein the hook body is formed by concentrically nesting a first circular tube and a second circular tube from inside to outside in sequence, and the front end part of the first circular tube extends out of the second circular tube and is connected with the hook head through a bent part;

the bending part comprises a front bending section fixedly connected with the hook head, a rear bending section sleeved in the first round pipe, a bending section group connected with the front bending section and the rear bending section, a sliding ferrule, an elastic ring and a positioning ring which are sequentially sleeved on the rear bending section from front to back, and a pull rod steel wire connected with the front end of the bending section group and the sliding ferrule; meanwhile, a strip-shaped gear hole is formed in the first circular tube, a push block is arranged on the strip-shaped gear hole and connected with the sliding ferrule through a connecting rod, when the hook head needs to be bent in a minimally invasive endoscopic surgery, the push block is pushed backwards along the strip-shaped gear hole, the sliding ferrule moves backwards under the driving of the connecting rod, meanwhile, the pull rod steel wire drives the knuckle group to bend for a certain angle, the purpose of hook head bending is achieved, the hook head can reach the disease part which cannot be reached by the straight tube type electric hook directly, and therefore surgery is effectively conducted.

As preferred technical scheme, the second pipe includes anterior segment pipe, back end pipe, and connects the anterior segment pipe with the rotator of back end pipe on the first pipe, and be located the inside lateral wall of second pipe is provided with the external screw thread be provided with on the rotator inside wall with the internal thread that the external screw thread matches the setting, manual clockwise or anticlockwise rotation rotator drives first pipe and effectively accomplishes concertina movement, can conveniently adjust the overall length of electric hook at will according to the depth of tissue.

As a preferable technical scheme, the outer side wall of the rotating body is fixedly sleeved with a rotating wheel, so that manual rotation is facilitated.

As an optimized technical scheme, a plurality of sawtooth gears are arranged on the strip-shaped gear holes and along the inner walls of the two sides of the strip-shaped gear holes in the length direction, gear scales are arranged above the strip-shaped gear holes and corresponding to each sawtooth gear, and therefore medical staff can adjust the bending angle of the hook head more intuitively.

As the preferred technical scheme, a limiting block is arranged at the opening of the front side end of the first round pipe, so that the sliding ferrule is effectively prevented from being separated from the inside of the first round pipe.

As a preferable technical scheme, the outer surfaces of the first round pipe and the second round pipe are provided with insulating and heat-insulating layers, so that insulating and heat-insulating effects are achieved.

The utility model has the advantages that:

1. the electric hook of the utility model is provided with the bendable structure at the hook head position, thereby realizing the purpose of hook head bending and being capable of directly reaching the disease part which can not be reached by the straight pipe type electric hook, thereby effectively implementing the operation;

2. the utility model discloses an electric hook has not only kept the advantage of original electric hook hemostasis, free tissue, can conveniently adjust its length at will according to the depth of tissue moreover.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic structural view of the present invention;

wherein: 1 hook head, 2 first round tube, 3 second round tube, 31 front section round tube, 32 back section round tube, 33 rotator;

4 knuckle anterior segment, 5 knuckle back ends, 6 knuckle group, 7 slip lassos, 8 elastic rings, 9 position rings, 10 pull rod steel wires, 11 bar gear holes, 12 ejector pads, 13 connecting rods, 14 external screw threads, 15 runners, 16 cockscomb structure gears, 17 gear scales, 18 stopper.

Detailed Description

Example (b): referring to fig. 1, the electric hook for minimally invasive endoscopic surgery comprises a hook head 1 and a hook body, wherein the hook body is formed by concentrically nesting a first circular tube 2 and a second circular tube 3 from inside to outside in sequence, and the front end part of the first circular tube 2 extends out of the second circular tube 3 and is connected with the hook head 1 through a bent part; the bending part comprises a front bending section 4 fixedly connected with the hook head 1, a rear bending section 5 sleeved in the first circular tube 2, a bending section group 6 connected with the front bending section 4 and the rear bending section 5, a sliding ferrule 7, an elastic ring 8 and a positioning ring 9 which are sequentially sleeved on the rear bending section 5 from front to back, and a pull rod steel wire 10 connected with the front end of the bending section group and the sliding ferrule 7; meanwhile, the first circular tube 2 is provided with a strip-shaped gear hole 11, the strip-shaped gear hole 11 is provided with a push block 12, the push block 12 is connected with the sliding ferrule 7 through a connecting rod 13, when the hook head 1 needs to be bent in the minimally invasive endoscopic surgery, the push block 12 is pushed backwards along the strip-shaped gear hole 11, the sliding ferrule 7 is driven by the connecting rod 13 to move backwards, meanwhile, the pull rod steel wire 10 drives the knuckle group to bend for a certain angle, so that the purpose of bending the hook head 1 is achieved, the hook head can reach the disease part which cannot be reached by the straight tube type electric hook, and the surgery is effectively implemented.

The second circular tube 3 of the embodiment includes a front circular tube 31, a rear circular tube 32, and a rotating body 33 connecting the front circular tube 31 and the rear circular tube 32, an external thread 14 is provided on the outer side wall of the first circular tube 2 and located inside the second circular tube 3, an internal thread matched with the external thread 14 is provided on the inner side wall of the rotating body 33, the rotating body 33 is manually rotated clockwise or counterclockwise to drive the first circular tube 2 to effectively complete the telescopic motion, and the overall length of the electric hook 1 can be conveniently adjusted at will according to the depth of the tissue; meanwhile, the outer side wall of the rotating body 33 is fixedly sleeved with a rotating wheel 15, so that manual rotation is facilitated.

This embodiment is on bar gear hole 11 and be provided with a plurality of cockscomb structure gears 16 along its ascending both sides inner wall of length direction, and the correspondence that lies in every cockscomb structure gear 16 in bar gear hole 11 top is provided with gear scale 17 simultaneously, makes things convenient for medical personnel to adjust the bending angle of gib head 1 more directly perceivedly.

In the embodiment, the limiting block 18 is arranged at the opening of the front side end of the first circular tube 2, so that the sliding ferrule 7 is effectively prevented from falling out of the first circular tube 2; meanwhile, the outer surfaces of the first round pipe 2 and the second round pipe 3 are provided with insulating layers, so that insulating and heat-insulating effects are achieved.

The utility model discloses a be equipped with a seal wire among the whole electric hook device, its length can not be less than the length under the electric hook state of extending completely to guarantee that the electric hook under the complete expansion can work smoothly.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An electric hook for minimally invasive endoscopic surgery comprises a hook head and a hook body, and is characterized in that the hook body is formed by concentrically nesting a first circular tube and a second circular tube from inside to outside in sequence, and the front end of the first circular tube extends out of the second circular tube and is connected with the hook head through a bent part;

the bending part comprises a front bending section fixedly connected with the hook head, a rear bending section sleeved in the first round pipe, a bending section group connected with the front bending section and the rear bending section, a sliding ferrule, an elastic ring and a positioning ring which are sequentially sleeved on the rear bending section from front to back, and a pull rod steel wire connected with the front end of the bending section group and the sliding ferrule; meanwhile, a strip-shaped gear hole is formed in the first circular tube, a push block is arranged on the strip-shaped gear hole, and the push block is connected with the sliding ferrule through a connecting rod.

2. The electric hook for minimally invasive endoscopic surgery according to claim 1, wherein the second circular tube comprises a front circular tube, a rear circular tube, and a rotating body connecting the front circular tube and the rear circular tube, an external thread is arranged on an outer side wall of the first circular tube and inside the second circular tube, and an internal thread matched with the external thread is arranged on an inner side wall of the rotating body.

3. The electric hook for minimally invasive endoscopic surgery as defined in claim 2, wherein a rotating wheel is fixedly sleeved on the outer side wall of the rotating body.

4. The electric hook for minimally invasive laparoscopic surgery as claimed in claim 1, wherein a plurality of serrated gears are disposed on the inner wall of the strip-shaped gear hole along both sides in the length direction thereof, and gear scales are correspondingly disposed above the strip-shaped gear hole and at each serrated gear.

5. The electric hook for minimally invasive laparoscopic surgery as claimed in claim 1, wherein a limiting block is disposed at an opening of a front side end of the first circular tube.

6. The electric hook for minimally invasive laparoscopic surgery as claimed in claim 1, wherein an insulating layer is disposed on the outer surface of said first circular tube and said second circular tube.