CN111839672A

CN111839672A - Hysteroscope muscular layer tissue resection device

Info

Publication number: CN111839672A
Application number: CN202010870517.1A
Authority: CN
Inventors: 陈雪梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-10-30

Abstract

The invention discloses a hysteroscope muscle layer tissue excision device, which comprises a cutter component, wherein the cutter component comprises an inner cutter and an outer cutter, the middle parts of the inner cutter and the outer cutter are hollow, the cutter head of the outer cutter is arc-shaped, a plurality of through holes are arranged on the cutter head, and a position on the inner cutter, which is in contact with the cutter head, is provided with a suspension loop structure. The external knife has a simple structure, can be used for cutting myomas and polyps of muscle layers and cervix uteri and cutting adhesion partitions of the uterus, and can cut tissues in all directions without a rotating device because the knife head of the external knife is provided with a plurality of openings.

Description

Hysteroscope muscular layer tissue resection device

Technical Field

The invention relates to the field of medical instruments, in particular to a hysteroscope muscular layer tissue resection device.

Background

The hysteroscope is a new and minimally invasive gynecological diagnosis and treatment technology, is a fiber light source endoscope used for examination and treatment in the uterine cavity, and comprises the hysteroscope, an energy system, a light source system, a perfusion system and an imaging system; the front part of the endoscope body enters the uterine cavity, and the endoscope body has an amplification effect on the observed part, so that the endoscope body is visually and accurately a preferred examination method for gynecological hemorrhagic diseases and intrauterine lesions.

The hysteroscope tissue resection system derived from the hysteroscope enters the uterus through the channel of the hysteroscope to resect myoma and polyp, and the existing hysteroscope tissue resection system has the following problems:

1. only myoma and polyp under the endometrium layer can be resected, myoma and polyp of the muscular layer and cervix uteri cannot be resected, and resection of uterus adhesion partition is not performed;

2. the speed can not be regulated in a stepless way, the unified cutting speed is troublesome to use aiming at tissues with different sizes and densities, the cutting is inaccurate, the efficiency is low, and intrauterine tissues are easy to be accidentally injured due to improper speed;

3. the flexible shaft is connected with external driving equipment through a flexible shaft, the flexible shaft is high in rotating noise, generates a large amount of heat, and is high in risk and inconvenient to operate;

4. the direction of the edge of the outer knife is fixed, when the myomas at different positions in the uterus are resected, the hand-held part needs to be rotated, the operation is inconvenient, and the rotation of the transmission flexible shaft is influenced;

5. the mechanical structure is complicated and the manufacturing cost is high.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a hysteroscope muscular layer tissue resection device which is simple in structure, can be used for resecting myomas and polyps of muscular layers and cervix uteri and resecting adhesion partitions of uterus, is provided with a plurality of openings at a cutter head of an outer cutter, and can be used for cutting tissues in all directions without a rotation device.

In order to solve the technical problem, the invention provides a hysteroscope muscle layer tissue resection device which comprises a cutter component, wherein the cutter component comprises an inner cutter and an outer cutter, the middle parts of the inner cutter and the outer cutter are hollow, the cutter head of the outer cutter is arc-shaped, a plurality of openings are arranged on the cutter head, and a hanging lug structure is arranged at the position, contacted with the cutter head, on the inner cutter.

Further, the electric knife comprises a shell, wherein a motor is arranged in the shell, a transmission device is connected to the motor through a transmission shaft, and the transmission device comprises a driving gear arranged on the transmission shaft and a driven gear arranged on an inner knife.

Further, a coupler is arranged between the motor and the transmission shaft, a first fixing plate is arranged on the shell on one side of the driving gear, and a bearing is arranged between the first fixing plate and the driving gear.

Further, a switch and a speed regulation knob for controlling the motor are arranged on the shell, and an indicator lamp is arranged at the top of the shell.

Furthermore, a first fixing head is arranged in the shell on one side of the shell, which is in contact with the outer cutter, and one side of the outer cutter is arranged in the first fixing head.

Furthermore, a plurality of second fixing plates used for supporting the inner cutters are arranged in the shell, through holes convenient for the inner cutters to pass through are formed in the second fixing plates, supporting rods and second fixing heads are arranged on the inner cutters, and the second fixing heads are fixed on one sides of the driven gears.

Furthermore, the first fixing head and the second fixing head are both provided with jackscrews.

Further, the inner cutter is connected with an external negative pressure device through a hose connector, a support ring is arranged between the inner cutter and the hose connector, and a sealing ring is further arranged inside the hose connector.

The invention has the beneficial effects that: 1. the motor is used for driving the transmission mechanism, the inner knife can be driven to rotate, and myoma and polyp of a muscular layer and a cervix uteri are resected by using the opening of the knife head of the outer knife and the rotation of the inner knife, and the resection of a uterine adhesion partition is also achieved;

2. the tool bit of outer sword all is provided with the opening in all directions, and the tissue of all directions all can cut to do not need to rotate handheld portion, application scope is wide.

Drawings

Fig. 1 is a schematic structural view of the outer cutter of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of the inner knife structure of the present invention.

The reference numbers in the figures illustrate: 1. a housing; 2. an outer cutter; 21. a cutter head; 22. an opening; 3. inner cutter; 31. a suspension loop structure; 4. a motor; 5. a drive shaft; 6. a driving gear; 7. a driven gear; 8. a coupling; 9. a first fixing plate; 10. a bearing; 11. a switch; 12. a speed regulating button; 13. an indicator light; 14. a first fixed head; 15. a second fixing plate; 16. a second fixed head; 17. carrying out top thread; 18. a hose connector; 19. a support ring; 20. a support rod.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to fig. 1 to 3, an embodiment of a hysteroscope muscle layer tissue excision device of the invention comprises a cutter assembly, the cutter assembly comprises an inner cutter 3 and an outer cutter 2, the middle of the inner cutter 3 and the middle of the outer cutter 2 are hollow, a cutter head 21 of the outer cutter 2 is arc-shaped, a plurality of openings 22 are arranged on the cutter head 21, a position on the inner cutter 3, which is in contact with the cutter head 21, is provided with a suspension loop structure 31, the hysteroscope muscle layer tissue excision device further comprises a shell 1, a motor 4 is arranged in the shell 1, the motor 4 is connected with a transmission device through a transmission shaft 5, and the transmission device comprises a driving gear 6 arranged on the transmission shaft 5 and a driven gear 7 arranged on the inner cutter.

During the use, connect outside negative pressure device with hose nipple 18, hysteroscope gets into the uterus from women's vagina, then get into the uterus cavity with outer sword 2 through the apparatus passageway of hysteroscope, utilize hysteroscope can explore the position of women's uterus myoma and polyp, when finding exact position, remove outer sword 2 to preset the position, and the opening 22 with outer sword 2 is facing to the position of myoma and polyp, starter motor 4, motor 4 drives driving gear 6 rotatory through transmission shaft 5, driving gear 6 drives driven gear 7, driven gear 7 drives interior sword 3 and rotates, because outer sword 2 each direction all is provided with opening 22, consequently need not rotate outer sword 2 and can cut the tissue of each direction. And the tool bit 21 of outer sword 2 is the arc, is provided with a plurality of openings 22 on the tool bit 21, and the position of contact with tool bit 21 on the interior sword 3 is provided with hangers structure 31, not only can excise myoma and polyp on the endometrium, can excise myoma and polyp of flesh layer and cervix moreover to and the excision of uterus adhesion wall, application scope is wide.

And the myoma and the polyp are far away from the inner side of the outer cutter 2 from the opening 22 due to the action of negative pressure, are rotatably cut by the inner cutter 3, are conveyed out through the negative pressure device, are closed after being cut and are taken out of the outer cutter 2.

A coupler 8 is arranged between the motor 4 and the transmission shaft 5, a first fixing plate 9 is arranged on the shell 1 on one side of the driving gear 6, a bearing 10 is arranged between the first fixing plate 9 and the driving gear 6, and the transmission effect is good.

Be provided with switch 11 and the speed governing knob that is used for control motor 4 on casing 1, and the top is provided with pilot lamp 13, inside is provided with the battery package, do not need external power supply, but wireless operation, let the art person have bigger operating range, it is more convenient to operate, noise when this can reduce the operation simultaneously, avoid causing the interference to patient and doctor, the rotational speed of sword 3 in speed governing button 12 also can be adjusted, to the tissue of different size and density, use different cutting speed, high efficiency.

One side that casing 1 and outer sword 2 contact is provided with first fixed head 14 in casing 1, outer sword 2 one side sets up in first fixed head 14, a position for fixing outer sword 2, prevent that outer sword 2 from droing from casing 1, still be provided with a plurality of second fixed plates 15 that are used for supporting inner sword 3 in the casing 1, be provided with the through-hole that the inner sword 3 of being convenient for passes through on the second fixed plate 15, be provided with bracing piece 20 and second fixed head 16 on the inner sword 3, second fixed head 16 is fixed in one side of driven gear 7, all is the position that is used for fixed inner sword 3, prevent that the skew set position in position from leading to the risk of operation, first fixed head 14 with all be provided with jackscrew 17 on the second fixed head 16, prevent that outer sword 2 and first fixed head 14, inner sword 3 and second fixed head 16 from taking place relative motion.

Still be provided with support ring 19 between interior sword 3 and the hose nipple 18, in order to prevent likewise that interior sword 3 from damaging to be provided with the sealing washer in the hose nipple 18, the sealing washer all adopts the silica gel material with support ring 19.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims

1. The utility model provides a hysteroscope flesh layer tissue resection device which comprises a cutter assembly, cutter assembly includes interior sword and outer sword, fretwork in the middle of interior sword and the outer sword are equal, the tool bit of outer sword is the arc, be provided with a plurality of openings on the tool bit, on the interior sword with the position of tool bit contact is provided with the hangers structure.

2. The hysteroscope myofascial tissue removal device of claim 1, comprising a housing having a motor disposed therein, the motor having a transmission coupled thereto via a drive shaft, the transmission comprising a drive gear disposed on the drive shaft and a driven gear disposed on the inner blade.

3. The hysteroscope muscular layer tissue resection device of claim 2, wherein a coupling is provided between the motor and the transmission shaft, a first fixing plate is provided on the housing at one side of the driving gear, and a bearing is provided between the first fixing plate and the driving gear.

4. The hysteroscopic myofascial tissue removal device of claim 2, wherein said housing is provided with a switch and a speed knob for controlling said motor, and a top indicator light.

5. The hysteroscopic myofascial tissue removal device of claim 2, wherein a first stationary head is disposed within said housing on a side of said housing in contact with said outer blade, said first stationary head being disposed on a side of said outer blade.

6. The hysteroscope muscular layer tissue resection device according to claim 2, wherein a plurality of second fixing plates for supporting the inner knife are arranged in the housing, the second fixing plates are provided with through holes for the inner knife to pass through, the inner knife is provided with a support rod and a second fixing head, and the second fixing head is fixed on one side of the driven gear.

7. The hysteroscopic myofacial tissue resection device of claim 5 or 6, wherein the first fixing head and the second fixing head are both provided with jackscrews.

8. The hysteroscope muscular layer tissue resection device of claim 2, wherein the inner knife is connected with an external negative pressure device through a hose connector, a support ring is arranged between the inner knife and the hose connector, and a sealing ring is arranged inside the hose connector.