CN212788562U

CN212788562U - Pleura sampling forceps

Info

Publication number: CN212788562U
Application number: CN202020808418.6U
Authority: CN
Inventors: 周大治; 汤庆; 丁尚伟; 汤敏轩; 胡毅
Original assignee: First Affiliated Hospital of Guangzhou Medical University
Current assignee: First Affiliated Hospital of Guangzhou Medical University
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-03-26
Anticipated expiration: 2030-05-14

Abstract

The utility model provides a pleura sampling forceps, including sampling forceps and trocar, the trocar includes noose and needle cover, the needle cover is worn to establish by the noose, the sampling forceps includes binding clip and the subassembly that pulls of being connected with the binding clip, pull the subassembly and include the intubate, the handle, seat is detained in first slip, the second slides and detains the seat, first traction tube, second traction tube and linear spring, the needle cover is worn to establish by the intubate, the first end and the handle of intubate are connected, seat and the second is detained in first slip and the second slides and detains the seat and slide respectively and set up on the handle, the second end and the binding clip of second traction tube are connected. The linear spring is the spring of linear type, and difficult fracture problem need not to use U type spring promptly, is difficult for taking place the sample failure problem to the central axis of linear spring is in same straight line with the central axis of first traction tube, and linear spring's line footpath still will be littleer than the intubate, so, the binding clip is difficult for blocking to wound inner wall and intubate, can take out the binding clip more smoothly, and the binding clip takes out the operation more smoothly promptly.

Description

Pleura sampling forceps

Technical Field

The utility model relates to a sampling forceps field especially relates to a pleura sampling forceps.

Background

At present, the pleura biopsy is an important means for clinically diagnosing pleura lesion because the pleura biopsy can obtain a pathological diagnosis result of the pleura lesion, the most commonly used pleura biopsy device at present mainly comprises a pleura biopsy needle, a pasteur automatic biopsy gun and the like, the pleura biopsy needle cannot be used for ultrasonic real-time guided monitoring, cannot be accurately positioned and can accurately obtain lesion tissues, the operation is complex, an experienced doctor can obtain satisfactory tissues, the later can not obtain enough tissues for a thin pleura, the pleura biopsy needle and the pasteur automatic biopsy gun both need to be carried out on the premise of a certain amount of pleural effusion, otherwise, the lung is easily damaged, and pneumothorax is caused.

To the above-mentioned problem, chinese utility model patent, application number: CN201620474445.8, authorization notice number: CN205758610U, topic name: aseptic disposable supersound guide pleura biopsy forceps is through setting up biopsy forceps and trocar, and biopsy forceps includes binding clip, body and is used for connecting the U type spring of binding clip and body, and the trocar includes nook closing member and needle cover, and nook closing member and body are inserted respectively and are established in the needle cover, and the binding clip shows in the outer end of needle cover, the both ends of U type spring respectively correspond with the inner of binding clip and the outer end of body is connected. Advance to go into the thorax through the trocar, pull out the nook closing member, the biopsy forceps that the end has U type spring passes through the needle cover and gets into the thorax, and U type spring resumes crooked, because of the restriction of needle cover, stretches out the terminal crooked angle of biopsy forceps's end control through U type spring length of needle cover to under supersound real-time supervision, can realize accurate location pincers and get, adopt pincers to get the mode, can obtain enough tissues, be favorable to pathological diagnosis, the biopsy of specially adapted thin pleura. The clamp is used for taking pleural tissues under ultrasonic guided monitoring, has the characteristics of accuracy, safety, effectiveness and simplicity in operation, has obvious advantages for pleural biopsy, particularly thin pleural biopsy, can also ensure safe operation under certain specific conditions, such as little pleural effusion, no pleural effusion and the like, is not easy to damage lungs, and is not easy to cause pneumothorax.

However, the following problems still exist for the above utility model patent:

firstly, the both ends of the U-shaped spring of above-mentioned aseptic disposable supersound guide pleura biopsy forceps correspond respectively with the inner of binding clip and the outer end of body is connected, at the actual sampling in-process, because the size of U-shaped spring is less and each position atress is uneven, very easily leads to U-shaped spring to take place the fracture, and then takes place to sample the failure problem, can cause the threat to sample the safety even.

Secondly, in order to reduce the injury to the person to be sampled when sampling as much as possible, when aseptic disposable ultrasonic guide pleura biopsy forceps gets into the person to be sampled, the chest wound of the person to be sampled is all minimum, but because the U-shaped spring is U-shaped structure, the central axis of the forceps head is not on the same straight line with the central axis of the trocar, so that the forceps head is easy to be clamped by the small side wall of the wound, the forceps head is difficult to be taken out smoothly, and much inconvenience is brought to the sampling operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, in view of this, it is necessary to provide one kind and need not to use U type spring, be difficult for taking place sample failure problem and binding clip take out the pleura sampling forceps that the operation is more smooth and easy.

The purpose of the utility model is realized through the following technical scheme:

a pleural sampling forceps comprising: the needle sleeve is penetrated by the needle core, the sampling forceps comprise a forceps head and a traction assembly connected with the forceps head, the sampling forceps are used for penetrating into the needle sleeve when the needle core is pulled out of the needle sleeve, the traction assembly penetrates through the needle sleeve and the forceps head is exposed outside the needle sleeve,

the tow assembly includes: the needle sleeve is arranged in a penetrating mode through the insertion tube, the first end of the insertion tube is connected with the handle, the first sliding buckle seat and the second sliding buckle seat are arranged on the handle in a sliding mode respectively, the first end of the first traction tube is connected with the first sliding buckle seat, the first end of the second traction tube is connected with the second sliding buckle seat, the insertion tube and the linear spring are arranged in a penetrating mode through the first traction tube in sequence, the second end of the first traction tube is connected with the forceps head, the linear spring is clamped between the forceps head and the insertion tube, the second traction tube is arranged in a penetrating mode through the insertion tube, and the second end of the second traction tube is connected with the forceps head.

In one embodiment, the forceps head comprises a forceps seat and two forceps arms, the inner ends of the forceps arms are hinged to the forceps seat, the outer ends of the forceps arms are vacant, the inner ends of the forceps arms are connected with swing arms, the inner ends of the swing arms are connected with the second end of the first traction tube, and the second end of the second traction tube is connected with the forceps arms.

In one embodiment, the outer end of the clamp arm is provided with an arc-shaped curved surface.

In one embodiment, the clamp head further comprises a locking pin, and the locking pin is connected with the second end of the second traction tube and the clamp arm respectively.

In one embodiment, the needle sheath is a hollow stainless steel tube.

In one embodiment, the cannula is a hollow stainless steel tube and the cannula has an outer diameter equal to or less than the inner diameter of the needle guard.

In one embodiment, the handle is provided with a first sliding groove and a second sliding groove, the first sliding buckle seat is slidably disposed on the first sliding groove, and the second sliding buckle is slidably disposed on the second sliding groove.

Because the linear spring is the linear type spring, it is in the bending process, and the atress is more even in comparison with U type spring, difficult emergence fracture problem, need not to use U type spring promptly, difficult emergence sample failure problem to the central axis of linear spring is in same straight line with the central axis of first traction tube, and the line footpath of linear spring still will be littleer than the intubate, so, wound inner wall and intubate are difficult for blocking the binding clip, can take out the binding clip more smoothly, and the binding clip takes out the operation more smoothly promptly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a pleural sampling forceps according to an embodiment;

fig. 2 is an enlarged view of the pleural sampling forceps shown in fig. 1 at a.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the pleural sampling forceps 100 includes sampling forceps 100 and a trocar 200, the trocar 200 includes a needle core (not shown) and a needle sheath 220, the needle core penetrates the needle sheath 220, the needle core is inserted into the needle sheath 220 in advance during sampling, and a needle of the needle core is exposed outside the needle sheath 220, then the needle of the needle core is inserted into a chest of a person to be sampled together with the needle sheath 220, and then the needle core is pulled out, and the needle sheath 220 is left at a wound position, because the needle sheath 220 is a hollow structure, the sampling forceps 100 can be inserted along an inner space of the needle sheath 220, so that the sampling forceps 100 can smoothly grasp pleural tissue near the wound position to achieve a sampling purpose.

Referring to fig. 1, the sampling forceps 100 includes a forceps head 110 and a traction assembly 120, the traction assembly 120 is connected to the forceps head 110, and the traction assembly 120 is used for controlling the forceps head 110 to work, so that the forceps head 110 can smoothly grasp pleural tissue near a puncture site to achieve sampling.

Referring to fig. 1, the sampling forceps 110 is configured to penetrate into the needle sheath 220 when the needle core is pulled out from the needle sheath 220, that is, when the needle core is pulled out from the needle sheath 220, the needle sheath 220 can be left at the wound position, and the needle sheath 220 is a hollow structure, so that the sampling forceps 100 can be inserted along the inner space of the needle sheath 220, and the sampling forceps 100 can smoothly grasp pleural tissue near the puncture site to achieve the purpose of sampling.

Specifically, when the sampling forceps 100 are inserted into the needle sheath 220, the traction assembly 120 is inserted into the needle sheath 220, and both ends of the head and the tail of the traction assembly 120 are exposed outside the needle sheath 220, and the forceps head 110 is exposed outside the needle sheath 220, so that the forceps head 110 can smoothly clamp and take pleural tissues near the puncture site, and the purpose of sampling is achieved.

Referring to fig. 1 and 2, the pulling assembly 120 includes: the needle sheath 220 can be left at the position of a wound when the needle core is pulled out of the needle sheath 220, because the needle sheath 220 is of a hollow structure, the cannula 121 can penetrate through the needle sheath 220, namely the cannula 121 is inserted into the chest of a person to be sampled along the inner space of the needle sheath 220, and subsequent sampling operation is facilitated.

Referring to fig. 1 and 2, a first sliding buckle seat 123 and a second sliding buckle seat 124 are slidably disposed on the handle 122, respectively, a first end of the first pulling tube 125 is connected to the first sliding buckle seat 123, a first end of the second pulling tube 126 is connected to the second sliding buckle seat 124, the first pulling tube 125 sequentially penetrates through the insertion tube 121 and the linear spring 127, a second end of the first pulling tube 125 is connected to the forceps head 110, so that the linear spring 127 is clamped between the forceps head 110 and the insertion tube 121, the second pulling tube 126 penetrates through the insertion tube 121, and a second end of the second pulling tube 126 is connected to the forceps head 110.

It should be noted that, when the first sliding buckle seat 123 slides along the handle 122, the first traction tube 125 can be driven to slide in the insertion tube 121 and the linear spring 127, meanwhile, when the second sliding fastener seat 124 slides along the handle 122, the second traction tube 126 can be driven to slide in the insertion tube 121, and it can be understood that, since the second end of the first traction tube 125 is coupled to the bit 110 and the second end of the second traction tube 126 is coupled to the bit 110, and the connection between the two is spaced, and based on the elastic force of the linear spring 127, for example, when the first traction tube 125 is kept still, the second traction tube 126 is pulled alone, the forceps head 110 may be tilted toward the second traction tube 126. similarly, by controlling the first and

second traction tubes

125 and 126, the inclination angle of the forceps head 110 can be controlled, so that the forceps head 110 can reach the position of the affected pleura.

Further, when the forceps head 110 reaches the affected pleura, the first traction tube 125 is released, that is, the first traction tube 125 is pushed out by a proper stroke, so that the forceps head 110 is opened, that is, in an open state, then the insertion tube 121 is used for pressing and propping the forceps head 110, so that the forceps head 110 is tightly attached to the pleura, then the first traction tube 125 is pulled, so that the forceps head 110 is closed, that is, in a closed state, so that the forceps head 110 grasps the pleura tissue, at this time, the first traction tube 125 and the second traction tube 126 are synchronously pulled together, and the whole sampling forceps 100 is pulled out. Finally, the forceps head 110 is opened, and the tissue in the forceps head 110 is processed according to a conventional procedure, so that pathological examination is convenient to follow.

Because the linear spring 127 is a linear spring, in the bending process, the stress is more uniform compared with a U-shaped spring, the problem of fracture is not easy to occur, i.e. the U-shaped spring is not needed, and the problem of sampling failure is not easy to occur, and the central axis of the linear spring 127 and the central axis of the first traction tube 125 are on the same straight line, and the wire diameter of the linear spring 127 is smaller than that of the insertion tube 121, so that the inner wall of the wound and the insertion tube 121 are not easy to clamp the forceps head 110, the forceps head 110 can be taken out more smoothly, i.e. the forceps head is taken out more smoothly.

In an embodiment, the binding clip includes that pincers seat and two inner are articulated set up in the tong arm on the pincers seat, the outer end of tong arm is vacant, just the inner of tong arm is connected with the swing arm, the inner of swing arm with the second end of first traction tube is connected, the second end of second traction tube with the tong arm is connected, so, can improve the convenience that the pleura tissue was got to the pincers.

Furthermore, the outer ends of the forceps arms are provided with arc-shaped curved surfaces, namely the outer ends of the forceps arms are round and blunt, so that the chance of damaging lung tissues is reduced, and the forceps taking process can be carried out under the condition of a small amount of pleural effusion even without the pleural effusion.

Furthermore, the binding clip still includes the locking nail, the locking nail respectively with the second end of second traction tube and the tong arm is connected, so, can improve structural stability.

In an embodiment, the needle sheath is a hollow stainless steel tube, further, the insertion tube is a hollow stainless steel tube, and the outer diameter of the insertion tube is equal to or smaller than the inner diameter of the needle sheath, so that the smoothness of the insertion tube sliding can be improved.

In an embodiment, the handle is provided with a first sliding groove and a second sliding groove, the first sliding buckle seat is slidably disposed on the first sliding groove, and the second sliding buckle is slidably disposed on the second sliding groove, so that the smoothness of the sliding of the first sliding buckle seat and the second sliding buckle can be improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A pleural sampling forceps comprising: the needle comprises a needle core and a needle sleeve, the needle core penetrates through the needle sleeve, the sampling forceps comprises a forceps head and a traction assembly connected with the forceps head, the sampling forceps is used for penetrating into the needle sleeve when the needle core is pulled out of the needle sleeve, and the traction assembly penetrates through the needle sleeve and the forceps head is exposed outside the needle sleeve,

2. The pleural sampling forceps of claim 1, wherein the forceps head comprises a forceps base and two forceps arms with inner ends hinged to the forceps base, the outer ends of the forceps arms are free, the inner ends of the forceps arms are connected with swing arms, the inner ends of the swing arms are connected with the second end of the first traction tube, and the second end of the second traction tube is connected with the forceps arms.

3. The pleura sampling forceps of claim 2, wherein the outer ends of the forceps arms are provided with arcuate curved surfaces.

4. The pleural sampling forceps of claim 2, wherein the forceps head further comprises a locking pin connected to the second end of the second traction tube and the forceps arms, respectively.

5. The pleura sampling forceps of claim 1, wherein the needle sheath is a hollow stainless steel tube.

6. The pleural hemostat of claim 1, wherein the cannula is a hollow stainless steel tube and the cannula has an outer diameter equal to or less than an inner diameter of the needle sheath.

7. The pleura sampling forceps of claim 1, wherein the handle defines a first sliding slot and a second sliding slot, the first sliding buckle base is slidably disposed on the first sliding slot, and the second sliding buckle is slidably disposed on the second sliding slot.