CN212307804U

CN212307804U - Biopsy anti-drop's hysteroscope biopsy pincers integration sleeve device

Info

Publication number: CN212307804U
Application number: CN202021326230.4U
Authority: CN
Inventors: 方兰兰; 孙莹璞; 郑融键
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-01-08
Anticipated expiration: 2030-07-08

Abstract

The utility model relates to the field of medical equipment, concretely relates to biopsy anti-drop's hysteroscope biopsy forceps integration sleeve pipe device, include: sleeve pipe I, hysteroscope, sleeve pipe II, claw cover, wire drawing ring, wire drawing sleeve pipe, wire drawing, cover shell, stand pipe, ratchet top dish I, ratchet top dish II, spring I, biopsy forceps structure. Three states of the claw sleeve in the device respectively correspond to three stages of biopsy grasping by the biopsy forceps in a targeted manner. The folded state of state one is directed to the biopsy forceps being retracted inside cannula I prior to grasping. The claw sleeve in the second state can automatically open when extending out due to the elastic opening characteristic of the claw sleeve, so that the biopsy tissues grabbed by the biopsy forceps can be covered in the claw sleeve, and the opened type can be used for covering the biopsy tissues with different sizes in a universal manner after the claw sleeve is elastically opened. The port at the front end of the claw sleeve in the third state is tightly closed by drawing wire and is closed to approach to the seal, so that the clamped biopsy tissue is completely wrapped, and the anti-falling of the biopsy tissue is doubly guaranteed.

Description

Biopsy anti-drop's hysteroscope biopsy pincers integration sleeve device

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to an integration sleeve pipe device of biopsy forceps of biopsy anti-drop's hysteroscope.

Background

The hysteroscope is a new minimally invasive gynecological diagnosis and treatment technology, is a fiber light source endoscope 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. Female is examined, diagnosed, analyzed and the like through a hysteroscope to carry out a series of detection and treatment. Hysteroscopy and surgery are the best options for the creation of lesions and removal of diseased tissue inside the uterine cavity of female patients. At present, biopsy tissue is taken from uterine cavity basically by biopsy forceps, but the existing biopsy forceps have the following defects in practical operation:

1. one biopsy sampling procedure often requires the clamping of several tissue samples from different biopsy sites. Or the patient has multiple focuses, and the tissue of each focus is needed to be clamped. Most bioptomes are limited to cutting a single tissue sample, after which the forceps must be withdrawn from the hysteroscope and the tissue sample collected before the forceps can be used again to clamp a second tissue sample, and so on. Most bioptomes are limited to a single sample because of the increased difficulty and time of the procedure due to the limited space between the jaws of the bioptome.

2. The biopsy in-process is got to current biopsy forceps inside clamp in palace chamber, when meetting great tissue, often can appear because biopsy forceps keep a jaw too little or clamping force not enough leads to the biopsy tissue to slide off from biopsy forceps at the in-process that takes out, leads to the condition of tissue sampling failure, often needs the doctor to let in the biopsy forceps device again and presss from both sides and get pathological change biopsy tissue, very influences operation efficiency, has prolonged unnecessary operation time, also is a misery to the patient.

3. The biopsy forceps jaws on the market are designed with different saw teeth or shapes of the jaws, so that the biopsy forceps are used for taking different biopsy conditions, but the double protection is not performed on the biopsy forceps in a clamping anti-dropping manner, and the biopsy tissue is required to be fed in again to be clamped when the biopsy tissue drops.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a biopsy falling-proof hysteroscope biopsy forceps integrated sleeve device.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of biopsy anti-drop's hysteroscope biopsy forceps integration sleeve device, include: the device comprises a sleeve I, a hysteroscope, a sleeve II, a claw sleeve, a wire drawing ring, a wire drawing sleeve, a wire drawing, a sleeve shell, a guide pipe, a ratchet top plate I, a ratchet top plate II, a spring I and a biopsy forceps structure;

the sleeve I is provided with a hysteroscope cavity channel and a grabbing cavity channel, the hysteroscope is sleeved in the hysteroscope cavity channel, the front end of the sleeve II is sleeved in the grabbing cavity channel after being connected with the claw sleeve, the claw sleeve comprises skeleton strips and diaphragms, a plurality of skeleton strips are connected to the front end port of the sleeve II in a circumferential manner, and the insides or the inner walls of the skeleton strips are covered with the diaphragms; the end part of the framework strip is provided with a wire drawing ring, the side edge of the framework strip is provided with a wire drawing sleeve, a wire drawing is sleeved in the wire drawing sleeve, one end of the wire drawing extends out of the wire drawing sleeve, a plurality of wire drawing rings are sequentially arranged in the circumferential direction in a penetrating manner and then are wound in the wire drawing sleeve to form an overlapped type access in the wire drawing sleeve, the framework strip and the diaphragm both have elastic deformation characteristics, the wire drawing sleeve has flexible deformation characteristics, when no external force is applied, the framework strip and the diaphragm are in an outward elastic opening shape, and the wire drawing sleeve follows the framework strip to perform synchronous bending deformation;

the rear end of a sleeve II extends out of a grabbing cavity channel to be connected with a sleeve shell, a guide pipe is arranged on the bottom surface of the sleeve shell and is communicated with the sleeve II, a round step is arranged at the rear end of the guide pipe, a ratchet top disc I, a ratchet top disc II and a spring I are sequentially sleeved on the guide pipe from the bottom surface of the sleeve shell to the round step, the spring I is always in a compressed state, the ratchet top disc I and the ratchet top disc II are meshed with each other, a guide structure is arranged between the ratchet top disc I and the guide pipe to enable the ratchet top disc I to move only in the axial direction of the guide pipe and not to rotate, an operation groove convenient for rotating the ratchet top disc I is formed in the sleeve shell, the other end of a drawn wire extends out of a wire drawing sleeve and penetrates through the inner part of the pipe wall at the port;

biopsy forceps structure includes: a biopsy forceps sleeve, a biopsy forceps operating rod and biopsy forceps; the biopsy forceps sleeve is sleeved in the guide tube and the sleeve II, and the front end of the biopsy forceps operating rod is connected with the biopsy forceps and then sleeved in the biopsy forceps sleeve.

Furthermore, the number of the wire drawing sleeves is two, namely a wire drawing sleeve I and a wire drawing sleeve II, and the wire drawing sleeve I and the wire drawing sleeve II are symmetrically arranged by taking the axis of the sleeve II as a central line at an angle of 180 degrees; the number of the wire drawing is two, and the wire drawing I and the wire drawing II are respectively arranged in the wire drawing sleeve I and the wire drawing sleeve II correspondingly.

Furthermore, an anti-winding cavity pipe is sleeved in the wire drawing sleeve pipe, one end of the wire drawing extends out of the anti-winding cavity pipe, a plurality of wire drawing rings are sequentially arranged in the circumferential direction in a penetrating mode, and then the wire drawing rings are wound back to the anti-winding cavity pipe to form overlapped access in the anti-winding cavity pipe.

Further, the anti-winding cavity pipe is internally provided with respective channels aiming at the overlapped sections of the drawn wires.

Further, the diaphragm is made of a compliant balloon material.

Furthermore, the top end of the ratchet meshed with the ratchet top disc I and the ratchet top disc II is a plane section.

Further, the guide structure includes: the guide block is arranged on the inner wall of the ratchet top disc II and protrudes towards the inner side, and the guide groove is formed in the pipe wall of the guide pipe along the axial direction of the guide pipe; the guide block is slidably mounted in the guide groove.

Furthermore, a check ring for protecting the spring I is arranged at the outer edge of the rear end of the ratchet top disc II in the backward direction.

Furthermore, the poking rods extending towards the outer side are arranged on the two symmetrical sides of the periphery of the ratchet top disc I, and the circumferential radian poking rod grooves are formed in the corresponding positions on the casing.

Further, the device still includes spring II, and the biopsy pincers action bars is biopsy pincers soft pole, and biopsy pincers sleeve pipe rear end port binding off and the periphery are provided with the bellied sleeve pipe step of circumference, and biopsy pincers soft pole rear end tip department is provided with the bellied soft pole step of circumference, and the cover is equipped with spring II on the biopsy pincers soft pole between sleeve pipe step and the soft pole step.

The utility model discloses a biopsy anti-drop's hysteroscope biopsy forceps integration sleeve device, the pertinence has the claw cover structure in the outside cover of biopsy forceps, and the three state of claw cover is the three stage that the corresponding biopsy forceps of pertinence snatchs the biopsy respectively. The folded state of state one is directed to the biopsy forceps being retracted inside cannula I prior to grasping. The claw sleeve in the second state can automatically open when extending out due to the elastic opening characteristic of the claw sleeve, so that the biopsy tissues grabbed by the biopsy forceps can be covered in the claw sleeve, and the opened type can be used for covering the biopsy tissues with different sizes in a universal manner after the claw sleeve is elastically opened. The port at the front end of the claw sleeve in the third state is tightly bound by the wire drawing and pulled back to close to the seal to realize the comprehensive package of the clamped biopsy tissue, and the double guarantee is provided for the anti-dropping of the biopsy tissue, so that the biopsy tissue can be taken out from the patient body by being wrapped in the sleeve by the claw sleeve even if slipping from the biopsy forceps. Each deformation state of claw cover structure is with strong points, both can ensure that biopsy tissue antiskid falls, can not cause the field of vision to the hysteroscope again and shelter from when biopsy forceps carry out the operation of centre gripping to the biopsy, very big increase the success rate when the operation of uterine cavity biopsy, to a great extent has improved efficiency, has avoided the patient to need carry out the condition of repeated operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is an overall structure diagram of the biopsy anti-drop integrated sleeve device of the hysteroscope biopsy forceps of the utility model;

FIG. 2 is a cutaway view of FIG. 1;

FIG. 3 is a sectional view of the biopsy forceps sleeve in the claw sleeve in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off of the utility model;

FIG. 4 is a sectional view of the open state of the claw sleeve in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 5 is a cross-sectional view of the structure related to the wire drawing ring and the wire drawing sleeve in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 6 is a drawing of the integrated sleeve device of the hysteroscope biopsy forceps for preventing the falling during biopsy;

FIG. 7 is a structural diagram of the rear end of the wire drawing in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 8 is a cut-away view of the middle part of the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 9 is an exploded view of the structure of FIG. 8;

FIG. 10 is a sectional view showing the engaged state of the ratchet top plate I and the ratchet top plate II in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off of the utility model;

FIG. 11 is a sectional view of the relevant part of the ratchet top disk II in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off of the utility model;

FIG. 12 is a sectional view of the non-controlled claw sleeve of the ratchet top disk II in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 13 is a sectional view showing the ratchet top plate II in the integrated sleeve device of the hysteroscope biopsy forceps for preventing the biopsy from falling off;

FIG. 14 is a sectional view of the biopsy forceps closed in the integrated sleeve device of the hysteroscope biopsy forceps with the biopsy falling-proof function of the present invention;

FIG. 15 is a sectional view of the biopsy forceps in the integrated sleeve device of the hysteroscope biopsy forceps with the biopsy anti-drop function of the present invention when opened;

FIG. 16 is a sectional view of the integrated sleeve device of the hysteroscope biopsy forceps with the claw sleeve folded;

FIG. 17 is a cutaway view of FIG. 16;

wherein the reference numerals are: 1. a sleeve I; 2. a hysteroscope; 3. a sleeve II; 4. a claw sleeve; 5. a wire drawing ring; 6. a housing; 7. a guide tube; 8. a ratchet top disc I; 9. a ratchet top disc II; 10. a spring I; 11. a skeleton bar; 12. a diaphragm; 13. a round step; 14. a biopsy forceps cannula; 15. a soft rod of a biopsy forceps; 16. a biopsy forceps; 17. a wire drawing sleeve I; 18. drawing a sleeve II; 19. drawing I; 20. drawing II; 21. an anti-wind lumen tube; 22. a guide block; 23. a guide groove; 24. a retainer ring; 25. a deflector rod; 26. a toggle rod groove; 27. a spring II; 28. a bushing step; 29. a soft rod step; 30. foreign body tissue.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

As shown in fig. 1 to 17, the utility model discloses a biopsy anti-drop's hysteroscope biopsy forceps integration sleeve device of embodiment includes: the device comprises a sleeve I1, a hysteroscope 2, a sleeve II 3, a claw sleeve 4, a wire drawing ring 5, a wire drawing sleeve, a sleeve shell 6, a guide tube 7, a ratchet top disc I8, a ratchet top disc II 9, a spring I10 and a biopsy forceps structure;

the sleeve I1 is provided with a hysteroscope 2 cavity and a grabbing cavity, the hysteroscope 2 is sleeved in the hysteroscope 2 cavity, the front end of the sleeve II 3 is connected with a claw sleeve 4 and then sleeved in the grabbing cavity, the claw sleeve 4 comprises skeleton strips 11 and a diaphragm 12, a plurality of skeleton strips 11 are connected to the front end port of the sleeve II 3 in a circumferential manner, and the diaphragm 12 covers the inner part or the inner wall of the skeleton strips 11; the end part of the framework strip 11 is provided with a wire drawing ring 5, the side edge of the framework strip 11 is provided with a wire drawing sleeve, a wire drawing is sleeved in the wire drawing sleeve, one end of the wire drawing extends out of the wire drawing sleeve, a plurality of wire drawing rings 5 are sequentially arranged in the circumferential direction in a penetrating manner and then are wound back to the wire drawing sleeve, overlapping type access is formed in the wire drawing sleeve, the framework strip 11 and the diaphragm 12 both have elastic deformation characteristics, the wire drawing sleeve has flexible deformation characteristics, when no external force is applied, the framework strip 11 and the diaphragm 12 are in an outward elastic opening state, and the wire drawing sleeve carries out synchronous bending deformation along with the framework strip 11;

the rear end of the sleeve II 3 extends out of a grabbing cavity to be connected with a casing 6, a guide pipe 7 is arranged on the bottom surface of the casing 6, the guide pipe 7 is communicated with the sleeve II 3, a round step 13 is arranged at the rear end of the guide pipe 7, a ratchet top disc I8, a ratchet top disc II 9 and a spring I10 are sequentially sleeved on the guide pipe 7 from the bottom surface of the casing 6 to the round step 13, the spring I10 is always in a compression state, the ratchet top disc I8 and the ratchet top disc II 9 are meshed with each other, a guide structure is arranged between the ratchet top disc I8 and the guide pipe 7 to enable the ratchet top disc I8 to move only in the axial direction of the guide pipe 7 and not to rotate, an operation groove convenient for rotating the ratchet top disc I8 is formed in the casing 6, and the other end of a drawn wire extends out of the wire drawing sleeve to penetrate through the inner portion of the pipe wall of the port of the sleeve II;

biopsy forceps structure includes: a biopsy forceps cannula 14, a biopsy forceps lever, a biopsy forceps 16; the sleeve 14 of the biopsy forceps is sleeved in the guide tube 7 and the sleeve II 3, and the front end of the operating rod of the biopsy forceps is connected with the biopsy forceps 16 and then sleeved in the sleeve 14 of the biopsy forceps.

The utility model discloses a biopsy anti-drop's hysteroscope biopsy forceps integration sleeve device, the pertinence has 4 structures of claw cover at 16 outside covers of biopsy forceps, and the three state of claw cover 4 pertinence corresponds biopsy forceps 16 respectively to the three stage that the biopsy snatched. The collapsed state of state one is directed to bioptome 16 being retracted within cannula I1 prior to grasping. The claw sleeve 4 in the second state can automatically open to cover the biopsy tissues grabbed by the biopsy forceps 16 when extending out due to the elastic opening characteristic of the claw sleeve 4, and the opened type can cover the biopsy tissues with different sizes in a universal manner after the claw sleeve is elastically opened. The port at the front end of the claw sleeve 4 in the third state is tightly closed by drawing wire and is closed to the closing end, so that the clamped biopsy tissue is completely wrapped, the anti-falling of the biopsy tissue is doubly guaranteed, and the biopsy tissue can be taken out from the patient body by wrapping the claw sleeve 4 in the sleeve even if slipping from the biopsy forceps 16. Each deformation state of the claw sleeve 4 structure is strong in pertinence, so that the anti-slip of the biopsy tissue can be guaranteed, the view of the hysteroscope 2 can not be shielded when the biopsy forceps 16 are used for clamping the biopsy, the success rate of the uterine cavity biopsy operation is greatly increased, the efficiency is improved to a great extent, and the condition that the patient needs to be subjected to repeated operation is avoided.

Preferably, the number of the wire drawing sleeves is two, the two wire drawing sleeves are respectively a wire drawing sleeve I17 and a wire drawing sleeve II 18, and the wire drawing sleeves I17 and the wire drawing sleeves II 18 are symmetrically arranged by taking the axis of the sleeve II 3 as a central line at an angle of 180 degrees; the number of the wire drawing is two, and the two wire drawing are respectively a wire drawing I19 and a wire drawing II 20 and are correspondingly arranged in a wire drawing sleeve I17 and a wire drawing sleeve II 18.

Inside letting in of snatching the chamber way has sleeve pipe II 3, and sleeve pipe II 3 is long and thin pipe structure, is connected with claw cover 4 structure at II 3 front ends of sleeve pipe, and claw cover 4 structure is connected with diaphragm 12 by skeleton strip 11 and is formed, is connected with a plurality of skeleton strips 11 at II 3 front end circular port department of sleeve pipe perpendicularly fixedly connected with, and a plurality of skeleton strips 11 adopt 6 group's skeleton strips 11 at the even angular distribution fixed connection of circular port department circumference.

The front end face of the 6 groups of framework strips 11 is vertically and fixedly connected with a circular wire drawing ring 5, and the circular ring opening of the wire drawing ring 5 faces to the two side directions of the corresponding framework strips 11. The lateral surfaces of the two symmetrical framework strips 11 are fixedly connected with a wire drawing sleeve I17 and a wire drawing sleeve II 18 respectively, the two wire drawing sleeves extend to the root from the end along the moving direction of the corresponding framework strips 11 respectively, and extend to the rear end of the sleeve II 3 from the inner part of the tube wall at the port of the sleeve II 3 in a penetrating manner, the two wire drawing sleeves have the characteristic of flexible deformation and can perform synchronous bending deformation along with the framework strips 11, and the distribution positions of the wire drawing sleeve I17 and the wire drawing sleeve II 18 are in 180-degree angle symmetry by taking the axis of the sleeve II 3 as the central line.

Preferably, the anti-winding cavity tube 21 is sleeved in the wire drawing sleeve, one end of the wire drawing extends out of the anti-winding cavity tube 21, a plurality of wire drawing rings 5 are sequentially arranged in the circumferential direction, and then the wire drawing rings are wound back to the anti-winding cavity tube 21 to form overlapped access in the anti-winding cavity tube 21.

An anti-winding cavity tube 21 is fixedly sleeved inside a wire drawing sleeve tube connected with a framework strip 11, a wire drawing I19 and a wire drawing II 20 are respectively communicated inside the anti-winding cavity tubes 21 inside a wire drawing sleeve tube I17 and a wire drawing II 18, the wire drawing I19 and the wire drawing II 20 are respectively communicated inside the anti-winding cavity tubes 21 in a left-right section overlapping mode, the wire drawing I19 and the wire drawing II 20 are enabled to be in a closed loop structure at the port extending section of the wire drawing sleeve tube, the loop sections of the wire drawing I19 and the wire drawing II 20 respectively pass through the loop openings of wire drawing rings 5 at the front ends of 6 groups of framework strips 11, the wire drawing rings 5 play a role in limiting a path for wire drawing, when the loop sections of the wire drawing I19 and the wire drawing II 20 are both long, the ports of two wire drawing rings at a claw sleeve 4 cannot close and limit the ports of the wire drawing rings, and when the wire drawing I19 and the wire drawing II 20 are pulled by the ends, the two wire drawing rings retract to the, make the lasso section length of wire drawing I19 and wire drawing II 20 reduce, wire drawing I19 tightens up 6 group skeleton strips 11 simultaneously to inside through wire drawing ring 5 with wire drawing II 20 for the anterior segment of skeleton strip 11 is to inboard bending deformation, thereby makes the whole binding off of claw cover 4 front end.

Preferably, the anti-winding lumen 21 is internally provided with respective channels for the overlapping sections of the drawn wires.

The inner part of the anti-winding cavity tube 21 is respectively provided with respective channels aiming at the left and right overlapped sections of the drawn wires, so that the left and right sections of the same drawn wire are mutually independent in the same anti-winding cavity tube 21, the condition that the left and right sections which are overlapped are mutually wound and even knotted can not occur, the drawn wires I19 and the drawn wires II 20 can be smoothly and simultaneously moved when being pulled out by the tension of the claw sleeve 4 in the front or pulled back after the rear end, and the opening and the contraction of the front port of the claw sleeve 4 can be stably controlled by medical staff.

Preferably, the septum 12 is made of a compliant balloon material.

The inner sides of the 6 groups of skeleton strips 11 are covered with a cylindrical diaphragm 12, and the diaphragm 12 is made of a compliant balloon material, has a certain elastic flexible deformation characteristic and can be elastically stretched, expanded and contracted. The skeleton strip 11 is for having the elastic deformation characteristic equally, and when 6 group skeleton strips 11 of this claw cover 4 structure had no exogenic action, the regional section that skeleton strip 11 is close to the root can open to outside elasticity for 6 group skeleton strips 11 are whole to be uncovered open shape. When framework strip 11 follows sleeve pipe II 3 and contracts to the intracavity of snatching of sleeve pipe I1 in, 6 whole draw in to the drum shape in of group framework strip 11, and diaphragm 12 follows framework strip 11 all the time and warp and can not appear the fold all the time when framework strip 11 warp.

Preferably, the top end of the ratchet meshed with the ratchet top disc I8 and the ratchet top disc II 9 is a plane section.

At the coaxial fixedly connected with cover 6 of the round cover type in sleeve pipe II 3's rear end, the inside cavity of cover 6 just link up with the rear end, and the external diameter of cover 6 is greater than sleeve pipe II 3 external diameter. The outer wall of the circumference of the rear end of the guide pipe 7 is provided with a circular truncated cone step 13 structure with a circumferential bulge, a ratchet top disc I8 and a ratchet top disc II 9 are sleeved on the guide pipe 7 from front to back respectively, a plurality of ratchets distributed at uniform angles are arranged on the faces, facing each other, of the ratchet top disc I8 and the ratchet top disc II 9 close to the outer ring, of the ratchet top discs, the ratchets distributed circumferentially of the two ratchet top discs can be mutually meshed, the top ends of the ratchets are replaced by plane sections with the tip ends of conventional ratchets, so that when the ratchet top discs I8 and the ratchet top discs II 9 rotate relatively and are dislocated, the axial distance between the dislocated top supports of the two ratchet top discs in a meshed state can be increased, and finally the planes on.

Preferably, the guide structure comprises: the guide block 22 is arranged on the inner wall of the ratchet top disc II 9 and protrudes towards the inner side, and the guide groove 23 is formed in the pipe wall of the guide pipe 7 along the axial direction of the guide pipe; the guide block 22 is slidably mounted in the guide groove 23.

The coaxial fixedly connected with guide tube 7 of bottom surface department in cover 6, guide tube 7 extends certain length towards the rear, and opens the guide way 23 that has certain length along the axial at the pipe wall of guide tube 7, wherein the protruding guide block 22 towards inboard is provided with in ratchet top dish II 9 inner wall department, and ratchet top dish II 9 can cooperate the guide way 23 of guide tube 7 to carry out the axial slip of angle fixation through guide block 22.

Preferably, a retaining ring 24 for protecting the spring I10 is arranged at the outer edge of the rear end of the ratchet top plate II 9 towards the rear direction.

The guide pipe 7 between the ratchet top plate II 9 and the round step 13 is sleeved with a spring I10, two ends of the spring I10 are connected to the end faces of the ratchet top plate II 9 and the round step 13 respectively, a check ring 24 with a certain length is designed at the outer edge of the rear end of the ratchet top plate II 9 in the backward direction, a certain protection effect can be achieved on the spring I10 at the root connecting part, and local distortion is avoided when the spring I10 is compressed. The spring I10 is always in a compression state, namely, the ratchet top plate II 9 is always in a top support state, and the ratchet top plate II 9 is always pressed to the direction of the ratchet top plate I8 under the action of no external force.

Preferably, the symmetrical both sides position of periphery of ratchet head plate I8 is provided with the driving lever 25 that stretches out towards the outside, and the corresponding position on cover 6 is seted up the radian driving lever groove 26 of circumference.

Perpendicular fixedly connected with is outside the driving lever 25 that stretches out on the peripheral symmetry both sides position of ratchet head dish I8, it has circumferential radian poking rod groove 26 to open corresponding position on cover shell 6 simultaneously, driving lever 25 stretches out from driving rod groove 26, can drive ratchet head dish I8 through rotating driving lever 25 and carry out synchronous rotation, again because the unable rotation of ratchet head dish II 9, can drive self when ratchet head dish I8 rotates and take place the dislocation for ratchet head dish II 9, prop backward the top of ratchet head dish II 9 gradually from initial ratchet interlock state, make ratchet head dish II 9 along axial ratchet rearward displacement, the final dislocation shore props up to the mutual bracketing of the top plane of ratchet of head dish I8 and ratchet head dish II 9, this moment ratchet head dish II 9 reaches the biggest to the backward axial displacement stroke. Wire drawing sleeve pipe I17 and wire drawing sleeve pipe II 18 extend the rear end backward along the axial in sleeve pipe II 3 inner wall, and corresponding wire drawing I19 and wire drawing II 20 extend certain distance from sleeve pipe II 3 rear end, finally with ratchet top dish II 9 fixed connection. When the ratchet top disc II 9 moves backwards along the axial direction, the drawn wire I19 and the drawn wire II 20 can be driven to be synchronously pulled backwards, so that the length of a ferrule section of the ferrule section at the front end port of the claw sleeve 4 is greatly reduced after the drawn wire is pulled backwards, the front end port of the claw sleeve 4 is closed to the closing degree under the tightening of the drawn wire, the outer diameter of the claw sleeve 4 is gradually increased from the root to the outer diameter close to the rear section, and the outer diameter of the claw sleeve 4 is sharply reduced to the closing of the port close to the rear end port.

Preferably, the device further comprises a spring II 27, the biopsy forceps operating rod is a biopsy forceps soft rod 15, the rear end port of the biopsy forceps sleeve 14 is closed, a sleeve step 28 with a circumferential protrusion is arranged on the periphery of the sleeve step, a soft rod step 29 with a circumferential protrusion is arranged at the rear end head of the biopsy forceps soft rod 15, and the biopsy forceps soft rod 15 between the sleeve step 28 and the soft rod step 29 is sleeved with the spring II 27.

The biopsy forceps structure is sleeved inside the sleeve II 3, the front end of the biopsy forceps structure is located inside the claw sleeve 4, the biopsy forceps structure comprises a biopsy forceps sleeve 14, a biopsy forceps soft rod 15 and biopsy forceps 16, the biopsy forceps sleeve 14 is sleeved with the biopsy forceps soft rod 15, the rear end of the biopsy forceps soft rod 15 extends out of the rear end of the biopsy forceps sleeve 14, a port of the rear end of the biopsy forceps sleeve 14 is closed, a sleeve step 28 protruding in the circumferential direction is arranged on the periphery of the port, a soft rod step 29 protruding in the circumferential direction is also arranged at the rear end of the biopsy forceps soft rod 15, a spring II 27 is connected between the two steps of the biopsy forceps sleeve 14 and the biopsy forceps soft rod 15, and the spring II 27 is sleeved on the periphery of the biopsy forceps soft rod 15. When the soft rod 15 of the biopsy forceps is moved forwards relative to the sleeve 14 of the biopsy forceps along the axial direction, the jaws of the biopsy forceps 16 connected with the front end of the soft rod 15 of the biopsy forceps can be controlled to be opened, the spring II 27 is in a compressed state, and when the soft rod 15 of the biopsy forceps stops being operated, the jaws of the biopsy forceps 16 are restored to a closed state under the elastic restoring action of the spring II 27.

The device is mainly used for grabbing biopsy tissues similar to hysteromyoma, sarcoma, polyp and the like in the uterine cavity of a patient. The device is outermost to have sleeve pipe I1, and it has two cavitys to run through around sleeve pipe I1 is inside, and one is 2 cavitys of hysteroscope, and another is for snatching the cavitys. The hysteroscope 2 is inserted into the cavity of the hysteroscope 2, and the extending condition of the hysteroscope 2 at the front end of the sleeve I1 can be controlled through the operation end of the hysteroscope 2 at the rear side of the sleeve I1, so as to perform projection display on the condition inside the hysteroscope 2.

When needing to use this device to snatch biopsy tissue such as similar uterus myoma, sarcoma, polyp to patient's palace intracavity portion, claw cover 4 contracts and is in whole folded state in the chamber way of grabbing of sleeve I1 during this device initial condition, and the inside ratchet top dish I8 of cover shell 6 is in the ratchet interlock state with ratchet top dish II 9, and wire drawing I19 and wire drawing II 20 at this moment all are in lax state, and biopsy forceps 16 is in closed state when no external force is controlled. The head end of the device is placed into a hysteroscope tube, the biopsy is positioned at a specific position in the uterine cavity, then the control sleeve I1 is close to the biopsy, the biopsy forceps structure is pushed forward, and the soft rod 15 of the biopsy forceps is pressed, so that the forceps flap at the front end of the biopsy forceps 16 clamps the biopsy, namely the foreign tissue 30, and the biopsy is separated from the uterine cavity wall. At the moment, the sleeve II 3 is pushed forwards, the claw sleeve 4 at the front end of the sleeve II 3 gradually extends out of the grabbing cavity channel of the sleeve I1 in the pushing process, the framework strip 11 is separated from the constraint of the grabbing cavity channel and begins to gradually open towards the outer side, so that the diaphragm 12 is driven to enable the claw sleeve 4 to be gradually opened integrally, and finally the biopsy forceps 16 clamping biopsy tissues are wrapped inside the claw sleeve 4 in an open state.

Stir the driving lever 25 of I8 both sides of ratchet apical disc this moment, ratchet apical disc I8 rotates and drives self and takes place the dislocation for II 9 of ratchet apical disc, prop backward ratchet apical disc II 9 gradually from initial ratchet interlock state, make II 9 of ratchet apical disc move backward along the axial, final dislocation shore to the mutual bracketing in ratchet apical disc I8 and the ratchet apical disc plane of II 9 of ratchet apical disc, and make I8 of ratchet apical disc and II 9 plane bracketing of ratchet apical disc can keep fixed under the effect of compressing tightly when spring I10's shoring effect down. At the moment, the backward axial moving stroke of the ratchet top disc II 9 reaches the maximum. In the process, the ratchet top disc II 9 drives the wire drawing I19 and the wire drawing II 20 to be synchronously pulled backwards, so that the length of a loop section of the drawn wire at the front end port of the claw sleeve 4 is greatly reduced after the drawn wire is pulled backwards, and the front end port of the claw sleeve 4 is closed to a degree close to the closed state under the tightening action of the drawn wire. At the moment, the biopsy forceps 16 and the clamped biopsy are wrapped inside the jaw sleeve 4 with the port tightened, even if the biopsy slips from the jaw of the biopsy forceps 16, the biopsy can be sealed inside the jaw sleeve 4 with the port tightened and cannot be separated, and the device can be taken out to finish the acquisition of the biopsy.

The utility model discloses an innovation technical point and beneficial effect lie in at least:

1. aiming at the condition that the existing biopsy forceps are easy to fall off during the process of clamping and taking out the biopsy, the device pertinently sleeves a claw sleeve 4 structure outside the biopsy forceps 16, and the three states of the claw sleeve 4 respectively and pertinently correspond to three stages of the biopsy grasping of the biopsy forceps 16. The collapsed state of state one is directed to bioptome 16 being retracted within cannula I1 prior to grasping. The claw sleeve 4 in the second state can automatically open to cover the biopsy tissues grabbed by the biopsy forceps 16 when extending out due to the elastic opening characteristic of the claw sleeve 4, and the opened type can cover the biopsy tissues with different sizes in a universal manner after the claw sleeve is elastically opened. The port at the front end of the claw sleeve 4 in the third state is tightly closed by drawing wire and is closed to the closing end, so that the clamped biopsy tissue is completely wrapped, the anti-falling of the biopsy tissue is doubly guaranteed, and the biopsy tissue can be taken out from the patient body by wrapping the claw sleeve 4 in the sleeve even if slipping from the biopsy forceps 16. Each deformation state of the claw sleeve 4 structure is strong in pertinence, so that the anti-slip of the biopsy tissue can be guaranteed, the view of the hysteroscope 2 can not be shielded when the biopsy forceps 16 are used for clamping the biopsy, the success rate of the uterine cavity biopsy operation is greatly increased, the efficiency is improved to a great extent, and the condition that the patient needs to be subjected to repeated operation is avoided.

2. In the third state, the change of the outer diameter of the claw sleeve 4 from the root to the rear end port is gradually increased from small to small, then the change is sharply reduced to the port close to the rear section, the outer diameter is smoothly transited at the position where the outer diameter is increased, the shape conforms to the shape with small resistance in hydromechanics, the claw sleeve 4 is very convenient to pull out from a cervical canal of a patient, and the scratch on the uterine cavity wall, the cervical canal and the vaginal wall of the patient can not be caused.

3. The front end of the claw sleeve 4 adopts a drawing I19 and a drawing II 20 which are symmetrically distributed with ferrule structures and take the axis as the central line angle and are 180 degrees, the drawing ring 5 at the end of the framework strip 11 is pulled back and tightened, the jaw sleeve 4 realizes the effect of tightening the port, the operation is very convenient, two sets of wire drawing are symmetrically arranged and are simultaneously pulled back and tightened, the stress balance can be achieved when the port of the claw sleeve 4 is tightened, the situation that the circumferential port of the claw sleeve 4 is tightened by the same stress at 360 degrees is ensured, the situation that the claw sleeve is tightened by being deviated to one side is avoided, the biopsy forceps 16 and the biopsy tissues in the claw sleeve 4 can be always positioned in the center of the claw sleeve 4, the port circumference can be simultaneously tightened at all angles to be close to the sealing state, the tightening effect is guaranteed, and the biopsy tissues are prevented from being separated from the claw sleeve 4 in the tightened state.

4. The ratchet top disc I8 and the ratchet top disc II 9 which face each other in opposite direction and face towards the end face ratchet direction are adopted to achieve the effect of drawing back the drawn wire through ratchet meshing and rotating dislocation jacking, the length of the drawn wire can be guaranteed to be equal to 1 time of ratchet length at each time, and only the difference of the drawn wires which are required to be adjusted and finished for 1 time of ratchet length is required to enable the port of the claw sleeve 4 to be tightened up from an open state to a tightening state which tends to seal. Rotate ratchet head dish I8 and can operate to realize that the stroke of 1 time ratchet length is accomplished to mutual the support of ratchet head dish II 9 from the interlock to ratchet top plane to the realization, stably guarantee the shrink effect of claw cover 4 ports, neither can the stroke too much lead to port skeleton strip 11 to extrude each other and lead to skeleton strip 11 to have cracked risk, can not the stroke too little make the port tighten up again and still leave great breach, lead to biopsy tissue to have the risk of following the 4 breach landing of claw cover again after taking off from biopsy forceps 16. On the basis of convenient operation, the stability of the anti-slipping effect of biopsy is ensured, and the use stability of the device is also ensured.

5. The inner part of the anti-winding cavity tube 21 is respectively provided with respective channels aiming at the left and right overlapped sections of the drawn wires, so that the left and right sections of the same drawn wire are mutually independent in the same anti-winding cavity tube 21, the condition that the left and right sections which are overlapped are mutually wound and even knotted can not occur, the drawn wires I19 and the drawn wires II 20 can be smoothly and simultaneously moved when being pulled out by the tension of the claw sleeve 4 in the front or pulled back after the rear end, and the opening and the contraction of the front port of the claw sleeve 4 can be stably controlled by medical staff.

6. The device has the advantages that the insides of the sleeves I1 of the device are respectively communicated with the cavity channel 2 of the hysteroscope and the cavity channel to be grabbed in parallel, the hysteroscope 2 and the biopsy forceps 16 are synchronously fixed at relative positions in a unified mode through the same sleeve I1, and the problem that the biopsy forceps 16 are difficult to position when the independent hysteroscope 2 and the biopsy forceps 16 are always in independent inclined shaking and inclined deflection due to the fact that the independent hysteroscope 2 and the biopsy forceps 16 are respectively arranged in the uterine cavity is solved. In the device, the hysteroscope 2 and the biopsy forceps 16 move integrally and synchronously at the same frequency all the time, so that the biopsy forceps 16 are always in a stable state in the display, and the operation of a doctor is very convenient for controlling and positioning.

7. The biopsy forceps sleeve 14 and the biopsy forceps soft rod 15 which are connected through the spring II 27 are adopted, the biopsy forceps 16 can be controlled to be opened by pressing, the closing can be realized by stopping pressing, the hand is loosened after biopsy tissues are clamped, and the clamping state can be always realized under the jacking action of the spring II 27, so that the biopsy forceps are very convenient and fast.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a biopsy anti-drop's hysteroscope biopsy forceps integration sleeve device which characterized in that includes: the device comprises a sleeve I, a hysteroscope, a sleeve II, a claw sleeve, a wire drawing ring, a wire drawing sleeve, a wire drawing, a sleeve shell, a guide pipe, a ratchet top plate I, a ratchet top plate II, a spring I and a biopsy forceps structure;

the sleeve I is provided with a hysteroscope cavity channel and a grabbing cavity channel, the hysteroscope is sleeved in the hysteroscope cavity channel, the front end of the sleeve II is connected with the claw sleeve and then sleeved in the grabbing cavity channel, the claw sleeve comprises framework strips and a diaphragm, the plurality of framework strips are connected to the port of the front end of the sleeve II in a circumferential manner, and the diaphragm is covered inside or on the inner wall of the plurality of framework strips; the end part of the framework strip is provided with the wire drawing ring, the side edge of the framework strip is provided with the wire drawing sleeve, the wire drawing sleeve is internally sleeved with the wire drawing, one end of the wire drawing extends out of the wire drawing sleeve and sequentially penetrates through a plurality of wire drawing rings in the circumferential direction and then is wound back to the wire drawing sleeve to form overlapped type access in the wire drawing sleeve, the framework strip and the diaphragm both have elastic deformation characteristics, the wire drawing sleeve has flexible deformation characteristics, when no external force acts, the framework strip and the diaphragm are in an outward elastic opening shape, and the wire drawing sleeve follows the framework strip to perform synchronous bending deformation;

the rear end of the sleeve II extends out of the grabbing cavity and is connected with the casing, the guide pipe is arranged on the bottom surface of the casing, the guide pipe is communicated with the sleeve II, a round step is arranged at the rear end of the guide pipe, the ratchet top disc I, the ratchet top disc II and the spring I are sequentially sleeved on the guide pipe from the bottom surface of the casing to the round step, the spring I is always in a compressed state, the ratchet top disc I and the ratchet top disc II are meshed with each other, a guide structure is arranged between the ratchet top disc I and the guide pipe, so that the ratchet top disc I can only move along the axial direction of the guide pipe and can not rotate, an operation groove convenient for rotating the ratchet top disc I is formed in the casing, the other end of the drawn wire extends out of the drawn wire sleeve and penetrates through the inner portion of the tube wall at the port of the sleeve II to extend to the rear end of the sleeve II to be connected with the ratchet top disc II;

the biopsy forceps structure includes: a biopsy forceps sleeve, a biopsy forceps operating rod and biopsy forceps; the biopsy forceps sleeve is sleeved in the guide tube and the sleeve II, and the front end of the biopsy forceps operating rod is connected with the biopsy forceps and then sleeved in the biopsy forceps sleeve.

2. The integrated sleeve device for the hysteroscope biopsy forceps with the biopsy falling prevention function according to claim 1, wherein the number of the drawbench sleeves is two, namely a drawbench sleeve I and a drawbench sleeve II, and the drawbench sleeve I and the drawbench sleeve II are symmetrically arranged by taking the axis of the sleeve II as a central line at an angle of 180 degrees; the number of the wire drawing is two, the wire drawing I and the wire drawing II are respectively arranged in the wire drawing sleeve I and the wire drawing sleeve II correspondingly.

3. The biopsy anti-drop hysteroscope biopsy forceps integrated cannula device of claim 1, wherein an anti-winding cavity tube is sleeved in the wire drawing cannula, one end of the wire drawing extends out of the anti-winding cavity tube, and is sequentially provided with a plurality of wire drawing rings in a circumferential direction and then wound back to the anti-winding cavity tube to form overlapped access in the anti-winding cavity tube.

4. The biopsy anti-drop integrated sleeve device of the hysteroscope biopsy forceps according to claim 3, wherein the anti-winding cavity tube is internally provided with respective channels for the overlapped sections of the drawstrings.

5. The biopsy anti-drop integrated sleeve device of the hysteroscope biopsy forceps according to claim 1, wherein the membrane is made of a compliant balloon material.

6. The integrated sleeve device for the hysteroscope biopsy forceps with the biopsy falling-prevention function according to claim 1, wherein the top end of the ratchet meshed with the ratchet top disk I and the ratchet top disk II is a plane section.

7. The biopsy dropout prevention hysteroscope biopsy forceps integrated cannula device of claim 1, wherein the guide structure comprises: the guide block is arranged on the inner wall of the ratchet top disc II and protrudes towards the inner side, and the guide groove is formed in the pipe wall of the guide pipe along the axial direction of the guide pipe; the guide block is slidably mounted in the guide groove.

8. The integrated sleeve device for the hysteroscope biopsy forceps with the biopsy falling prevention function according to claim 1, wherein a retaining ring for protecting the spring I is arranged at the outer edge of the rear end of the ratchet top disc II in the backward direction.

9. The integrated sleeve device for the hysteroscope biopsy forceps with the biopsy falling-preventing function according to claim 1, wherein the ratchet top disc I is provided with poking rods extending outwards at two peripherally symmetrical sides, and the sleeve is provided with circumferential arc poking rod grooves at corresponding positions.

10. The integrated sleeve device for the hysteroscope biopsy forceps, which is characterized in that the integrated sleeve device for the biopsy anti-falling off function further comprises a spring II, the operating rod of the biopsy forceps is a soft rod of the biopsy forceps, the port of the rear end of the sleeve of the biopsy forceps is closed, a sleeve step with a convex circumference is arranged on the periphery of the sleeve step, a soft rod step with a convex circumference is arranged at the end head of the rear end of the soft rod of the biopsy forceps, and the spring II is sleeved on the soft rod of the biopsy forceps between the sleeve step and the soft rod step.