CN213430334U

CN213430334U - Novel needle holding forceps for minimally invasive surgery under digestive endoscopy

Info

Publication number: CN213430334U
Application number: CN202021644507.8U
Authority: CN
Inventors: 俞春波
Original assignee: SHANGHAI JIADING DISTRICT ANTING HOSPITAL
Current assignee: SHANGHAI JIADING DISTRICT ANTING HOSPITAL
Priority date: 2020-03-31
Filing date: 2020-08-10
Publication date: 2021-06-15
Anticipated expiration: 2030-08-10

Abstract

A novel needle holding forceps for minimally invasive surgery under digestive endoscopy comprises a forceps head, a forceps body and an operating handle, wherein the forceps body comprises a sheath tube and an inner core, the operating handle comprises a handle main body, a sliding ring and a reset spring, an axial second through hole is formed in the front end of the handle main body, the inner core fixedly connects with the sliding ring after sequentially passing through the second through hole and the reset spring, the other end of the sheath tube is fixedly connected with the front end of the handle main body, the forceps head comprises a stainless steel tube and a hook, a first groove and a second groove are formed in the front end of the stainless steel tube, the first groove and the second groove are arranged in a cross mode, the rear end of the stainless steel tube is fixedly connected with the sheath tube, and the hook is fixedly connected with the inner core; the utility model discloses operating handle is synchronous with the binding clip during use, through stretching out and retracting of the steerable crotch of operating handle, is convenient for catch on and sew up needle and locking, has overcome the not enough problem of sheath pipe moment of torsion, controls portably, easily promotes and is convenient for operate in the alimentary canal to it is more firm to make the locking of sewing needle.

Description

Novel needle holding forceps for minimally invasive surgery under digestive endoscopy

Technical Field

The utility model relates to the technical field of medical surgical instruments, in particular to a novel needle holding forceps for a minimally invasive surgery under a digestive endoscope.

Background

The malignant tumor of the digestive tract is a common disease and frequently encountered disease of the digestive tract, seriously threatens the life and health of human beings, and the discovery rate of the malignant tumor of the digestive tract is increased along with the gradual aging stage of the society, and the radical effect can be achieved by excising the tumor of some early tumors of the digestive tract through endoscopic minimally invasive treatment.

With the continuous development of digestive endoscopy and endoscopic diagnosis and treatment technologies, endoscopic examination is becoming a conventional examination means for digestive tract diseases, so that early tumors of the digestive tract are found more and more, endoscopic treatment is increased, complications related to treatment are increased correspondingly, and the digestive tract is perforated with the greatest harm. The digestive tract perforation can be divided into endoscopic diagnosis perforation complications and active digestive system tube wall stoma, such as perforation in endoscopic examination, perforation in digestive tract polyp extirpation, EMR, ESD and the like, full-thickness gastrectomy (EFTR), incision through natural orifice endoscopic surgery (NOTES) and the like, the main treatment mode of the former digestive tract perforation is surgical repair, and with the progress of endoscopic instruments and technologies, a part of the digestive tract perforation can be sutured under an endoscope. The current common digestive tract perforation closing technology mainly comprises the conventional hemostatic clamp closing, the large hemostatic clamp closing, the nylon snare hemostatic clamp pouch suture method and the metal clamp closing, in addition, the perforation at the relatively narrow part of esophagus, duodenum and the like can be treated by a temporary film-covered metal bracket, but the treatment has the defects of high technical difficulty, complex operation, long time, low reliability and the like, and some of the treatments are only in the animal experiment stage.

Of all techniques for perforation and suture of the digestive tract, surgical suture is the most basic and reliable, and is the suture means finally selected after other techniques are difficult to complete. The surgical suture technology can realize full-layer contraposition suture of the wall of the digestive tract tube, which is an important factor for tissue healing and prevention of postoperative leakage of the digestive cavity, and the suture technology is difficult to achieve. When suture operation is performed by means of a digestive endoscope, as the forceps channel space of the digestive endoscope is very limited, the diameter of the gastroscope forceps channel is about 2.8mm, the diameter of the enteroscope forceps channel is about 3.2mm, and the length of the forceps channel is about 1.2-1.4 mm, the surgical instruments which can be placed in the narrow space are very limited. The prior needle holding forceps have the technical problems of insufficient torque of a sheath tube, asynchronous operation of a forceps head and a handle, poor locking stability of a sewing needle and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a novel needle holder for digestive endoscopy minimally invasive surgery.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel needle-holding forceps for digesting minimally invasive surgery under scope, includes binding clip, pincers body and operating handle, the pincers body includes sheath pipe and inner core, operating handle includes handle main part, sliding ring and reset spring, axial second through-hole has been seted up to handle main part front end, the inner core successively pass behind second through-hole and the reset spring with sliding ring fixed connection, the other end of sheath pipe and the front end fixed connection of handle main part, the binding clip includes nonrust steel pipe and crotch, first recess and second recess have been seted up to the front end of nonrust steel pipe, and first recess and second recess are cross arrangement, the rear end and the sheath pipe fixed connection of nonrust steel pipe, crotch and inner core fixed connection.

Furthermore, the first groove and the second groove are vertically arranged.

Furthermore, the stainless steel pipe and the sheath pipe are coaxially arranged.

Further, the surface of the clamp head is subjected to grinding and polishing treatment.

Further, the sheath pipe includes spring pipe and super-elastic metal pipe, spring pipe and super-elastic metal pipe fixed connection, the spring pipe one end and the terminal fixed connection of crotch of sheath pipe, the super-elastic metal pipe one end and the handle main part front end fixed connection of sheath pipe, the sheath pipe skin is equipped with rubber insulation layer, the inner core material is stainless steel wire rope.

Furthermore, a movable sliding groove is formed in the handle main body, the second through hole is communicated with the movable sliding groove, the reset spring is arranged in the movable sliding groove, the sliding ring is sleeved on the periphery of the movable sliding groove, the upper end and the lower end of the outer surface of the sliding ring are respectively provided with a convex ring, a supporting column is arranged on the inner surface of the sliding ring, the inner core is fixedly connected with the supporting column on the sliding ring, and a tail ring is arranged at the tail end of the handle main body.

Further, the stainless steel outside diameter of pipe is 2.7mm, the stainless steel pipe is long 15mm, the crotch is long 6mm, and the cross section diameter of crotch is 0.6 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

when the utility model is used, the operating handle is synchronous with the binding clip, the hook can be controlled to extend and retract through the operating handle, the suture needle can be hooked and locked conveniently, the problem of insufficient torque of the sheath tube is solved, the operation and control are simple and convenient, the popularization is easy, the operation in the alimentary canal is convenient, and the locking of the suture needle is more stable;

the suture needle can be clamped and locked, the suture line can also be clamped, and the suture line is knotted to suture the digestive tract wall defect in the whole process;

thirdly, mucosa suture can be carried out or whole course suture can be carried out on various perforations in the alimentary canal (perforation for endoscopy, perforation for concurrent treatment, full-thickness resection (EFTR) of the stomach wall and incision through natural orifice endoscopic surgery (NOTES)) in alimentary canal mucosa dissection (ESD);

fourthly, for intractable hemorrhage of the digestive tract (hemorrhage in polypectomy, EMR and ESD operations or after operations, and difficult successful hemostasis by electrocoagulation and metal clips), the hemostasis can be performed by 'splayed' suture;

fifth, the utility model discloses use under the scope of digestion, convenient operation easily promotes, can also use as foreign matter pincers.

Drawings

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

FIG. 2 is a schematic perspective view of the binding clip of the present invention;

FIG. 3 is a schematic view of the structure of the binding clip of the present invention;

FIG. 4 is a side view of the structure of FIG. 3;

fig. 5 is a schematic structural view of the hook of the present invention;

FIG. 6 is a schematic structural view of the operating handle of the present invention;

fig. 7 is a schematic structural view of the body of the pliers of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides a novel needle holder for digesting under-endoscope minimal access surgery, includes binding clip 1, pincers body 2 and operating handle 3, pincers body 2 includes sheath pipe 9 and inner core 10, operating handle 3 includes handle main part 11, sliding ring 12 and reset spring 13, axial second through-hole 14 has been seted up to handle main part 11 front end, inner core 10 successively passes behind second through-hole 14 and the reset spring 13 with sliding ring 12 fixed connection, the other end of sheath pipe 9 and the front end fixed connection of handle main part 11, binding clip 1 includes nonrust steel pipe 4 and crotch 7, first recess 5 and second recess 6 have been seted up to the front end of nonrust steel pipe 4, and first recess 5 and second recess 6 are the setting of crossing, and nonrust steel pipe 4's rear end and sheath pipe 9 fixed connection, crotch 7 and inner core 10 fixed connection.

Specifically, the first groove 5 and the second groove 6 are vertically arranged. The first recess 5 and the second recess 6 form a cross-shaped recess.

Specifically, the stainless steel pipe 4 is provided coaxially with the sheath 9.

Specifically, the outer diameter of the stainless steel tube 4 is 2.7mm, the length of the stainless steel tube 4 is 15mm, the length of the hook 7 is 6mm, and the diameter of the cross section of the hook 7 is 0.6 mm.

Particularly, the surface of the forceps head 1 is polished, so that the inner wall of the forceps channel is not easily damaged when the forceps head 1 enters or exits the endoscope channel, and tissues are not easily damaged.

Specifically, the sheath 9 includes a spring tube 15 and a superelastic metal tube 16, the spring tube 15 is 100mm long, the diameter of the section circle is 2.0mm, the superelastic metal tube 16 is 180mm long, the outer diameter of the section circle is 1.5mm, and the inner diameter is 1.1mm, the spring tube 15 is fixedly connected with the superelastic metal tube 16, one end of the spring tube 15 of the sheath 9 is fixedly connected with the tail end of the hook 7, one end of the superelastic metal tube 16 of the sheath 9 is fixedly connected with the front end of the handle main body 11, a rubber insulating layer 17 is arranged on the outer layer of the sheath 9, the inner core 10 is made of a stainless steel wire rope, the inner core 10 is about 1400mm long, and the diameter of the section circle is 0.7mm, the superelastic metal tube 16 can provide sufficient torque, and the spring tube 15 can be freely bent, so as to.

Specifically, the handle main body 11 is provided with a moving chute 18, the second through hole 14 is communicated with the moving chute 18, the return spring 13 is arranged in the moving chute 18, the sliding ring 12 is sleeved on the periphery of the moving chute 18, the upper end and the lower end of the outer surface of the sliding ring 12 are respectively provided with a convex ring, the inner surface of the sliding ring 12 is provided with a support column 19, the inner core 10 is fixedly connected with the support column 19 on the sliding ring 12, the tail ring 8 is arranged at the tail end of the handle main body 11, the return spring 13 can clamp the suture needle by utilizing resilience force, and the suture needle cannot easily fall off or change direction.

The working principle is as follows: the utility model discloses a when using, through promoting the sliding ring 12 with the finger, make inner core 10 promote crotch 7 forward, crotch 7 stretches out in by first recess 5, crotch 7 catches on the seam needle, loosen finger sliding ring 12, under reset spring 13's elasticity, inner core 10 is drawn back to tong arm 4 closed, the seam needle is also followed by crotch 7 hook to second recess 6 in, the seam needle is carried immovably between second recess 6 and crotch 7, then operating handle 3 is held to the hand, will sew up the needle and shuttle in the tissue that needs to sew up. After one stitch, the slip ring 12 is pushed with the fingers and the hook 7 is again extended from the first recess 5, so that the needle can be released. The utility model can also be used as foreign body forceps for taking out the foreign body in the body.

According to fig. 1 to 7, the operation method of the needle holder is as follows: external supplementary tong way (plastics material) of gastroenterology body, the needle-holding forceps is inserted to pipe diameter 3.2mm, and the rethread gastroenterology tong way inserts vascular forceps, double operation: one person controls the gastrointestinal endoscope, and the other person operates the needle holding forceps and the vascular forceps; the sliding ring 12 is held by the forefinger and the thumb of the right hand, the tail end of the operating handle 3 and the tail ring 8 are held in the hand by the little finger of the ring finger of the middle finger, and the forefinger and the thumb can slide back and forth to control the hook 7 of the forceps head 1 to extend and retract so as to loosen and clamp the suture needle. Clamping a suture needle: the other channel is inserted into the vascular clamp to assist in transferring the suture needle to the needle holding clamp, the slip ring 12 is pushed towards the clamp head by force, the hook 7 extends out, the direction is adjusted, the tail section of the suture needle is clamped, and then the hook 7 retracts. Locking the suture needle: the needle holding forceps clamp the suture needle, and after the proper angle is adjusted, the fingers are loosened, and the suture needle can be automatically locked by utilizing the resilience force of the return spring 13; the sewing method (I): the needle direction of the needle-holding forceps is 90 degrees, after the suture needle is locked, the thumb and the index finger of the right hand are pulled back by applying force backwards, the wrist rotates, the controllable forceps head 1 makes clockwise or anticlockwise motion, the left-hand vascular forceps assist in clamping tissues, the needle inserting direction is adjusted by an operator, the clockwise suture is generally convenient to perform, the backward force is pulled back, the wrist rotates, the controllable forceps head 1 makes a clockwise rotation suture needle, the end of the suture needle passes through the tissues, the needle head is exposed, the left hand assists in clamping the needle head by the vascular forceps, and the clockwise rotation is realized, then the suture thread is clamped by the needle-holding forceps, the suture thread is gradually tightened, the suture thread is provided with barbs, the suture thread can not retract after being tightened, and the suture. And continuously suturing until the wound surface is completely sutured. Cutting off redundant suture lines by using scissors, and taking out the suture needle to finish the operation; and (b) a suturing method: the direction of the needle holding forceps is 0 degrees, the front half part of the suture needle is parallel to the needle holding forceps, the needle head faces to the anus side, when in suture, the vascular forceps clamp tissues to push towards the oral side, and the needle holding forceps clamp the needle to hook back towards the anus side; the needle head faces to the mouth side, when suturing, the needle is clamped by the needle holder and pushed towards the mouth side, the vascular forceps clamps the tissue and pulls back towards the anus side, and the tissue is easier to penetrate; the rest steps are the same as the method (I).

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel needle holder for digesting under-endoscope minimal access surgery, includes binding clip (1), pincers body (2) and operating handle (3), pincers body (2) are including sheath pipe (9) and inner core (10), operating handle (3) are including handle main part (11), sliding ring (12) and reset spring (13), axial second through-hole (14) have been seted up to handle main part (11) front end, inner core (10) successively pass behind second through-hole (14) and reset spring (13) with sliding ring (12) fixed connection, the other end of sheath pipe (9) and the front end fixed connection of handle main part (11), its characterized in that: binding clip (1) includes nonrust steel pipe (4) and crotch (7), first recess (5) and second recess (6) have been seted up to the front end of nonrust steel pipe (4), and first recess (5) and second recess (6) are the setting of crossing, the rear end and sheath pipe (9) fixed connection of nonrust steel pipe (4), crotch (7) and inner core (10) fixed connection.

2. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: the first groove (5) and the second groove (6) are vertically arranged.

3. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: the stainless steel pipe (4) and the sheath pipe (9) are coaxially arranged.

4. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: the outer diameter of the stainless steel pipe (4) is 2.7mm, the length of the stainless steel pipe (4) is 15mm, the length of the hook (7) is 6mm, and the diameter of the cross section of the hook (7) is 0.6 mm.

5. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: and the surface of the clamp head (1) is subjected to grinding and polishing treatment.

6. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: sheath pipe (9) include spring pipe (15) and super-elastic metal pipe (16), spring pipe (15) and super-elastic metal pipe (16) fixed connection, spring pipe (15) one end and crotch (7) terminal fixed connection of sheath pipe (9), super-elastic metal pipe (16) one end and handle main part (11) front end fixed connection of sheath pipe (9), sheath pipe (9) skin is equipped with rubber insulation layer (17), inner core (10) material is stainless steel wire rope.

7. The novel needle holder for digestive endoscopy minimally invasive surgery according to claim 1, characterized in that: the handle is characterized in that a movable sliding groove (18) is formed in the handle main body (11), the second through hole (14) is communicated with the movable sliding groove (18), the reset spring (13) is arranged in the movable sliding groove (18), the sliding ring (12) is sleeved on the periphery of the movable sliding groove (18), the upper end and the lower end of the outer surface of the sliding ring (12) are respectively provided with a convex ring, a supporting column (19) is arranged on the inner surface of the sliding ring (12), the inner core (10) is fixedly connected with the supporting column (19) on the sliding ring (12), and the tail end of the handle main body (11) is provided with a tail ring (8.