CN212816355U

CN212816355U - A biopsy forceps with dilation function in biliary tract

Info

Publication number: CN212816355U
Application number: CN202020388075.2U
Authority: CN
Inventors: 张冬磊; 郝建宇
Original assignee: Beijing Chaoyang Hospital
Current assignee: Beijing Chaoyang Hospital
Priority date: 2020-03-16
Filing date: 2020-03-24
Publication date: 2021-03-30
Anticipated expiration: 2030-03-24

Abstract

The utility model relates to the technical field of medical equipment, in particular to a living body sampling forceps. The utility model provides a biopsy forceps with an expansion function in the biliary tract, which comprises a slider arranged on the front side of the handle and capable of sliding back and forth on it, and a forceps head with an expansion tube structure at the front end. The part of the sampling pliers is used for sampling, the inside of the slider is fixedly connected with one end of the connecting piece, the connecting piece is fixedly connected with one end of the steel wire set in the spring tube, the other end of the steel wire is connected with the pliers head, the sampling spoon is set on the side of the pliers head, pull When the slider is moved, the sampling spoon on the clamp head is driven to open and close for sampling. The utility model can obtain samples from the center of the lesion after expanding the living body through the narrowed part of the diseased body, and can also collect one or more than two samples at a time in the center of the living body, so that the expansion sampling can be completed at one time, and the operation is effectively shortened. time, significantly improving the sampling efficiency and the effect of the positive rate of specimens.

Description

Biopsy forceps with expansion function in biliary tract

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to live body sampling forceps.

Background

Biopsy sampling is a frequently used examination means and one of important means for judging lesions, and biopsy forceps are generally used for sampling. At present, the biopsy forceps have various types and specifications, and the sampling spoon can be divided into a porous sampling forceps and a non-porous sampling forceps and can also be divided into a combination of a toothed sampling forceps and a toothless sampling forceps. As shown in fig. 1-2, the prior art provides a biopsy forceps, which includes a front side slider (5) disposed on a handle (6), the slider (5) slides back and forth on the slider (5), the inside of the slider (5) is fixedly connected with one end of a connecting piece (4), the connecting piece (4) is fixedly connected with one end of a steel wire disposed in a lumen of a spring tube (2), the other end of the steel wire is fixedly connected with a forceps head (1) disposed at the front end of the spring tube (2), when an operator pushes and releases the slider (5), two sampling scoops (102) disposed at the top end of the forceps head (1) are opened and closed, so as to sample tissue of a biopsy.

However, the forceps head (1) of the biopsy forceps is arranged at the middle position of the front end of the tip, and the sampling spoon arranged at the top end is used for sampling, if the lesion part is narrow, the sampling spoon cannot pass through the narrow part, so that the biopsy of the biopsy forceps can only be taken at the edge of the tissue lesion, and the sampling cannot reach the center of the lesion, so that the biopsy positive rate is low, and particularly the sampling positive rate of the biopsy forceps in biliary tract lesion is only 50% at most at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a biopsy forceps with expansion function in biliary tract sets up the expansion tube structure of binding clip through the front end, lets the sampling spoon arrive pathological change central authorities when expanding the narrow position, has set up the sampling spoon that can beat fast and close in one side or both sides of binding clip, can enough expand the narrow position of pathological change, has realized getting the purpose of biopsy at histopathology central authorities, has still obtained the effect that improves biopsy sampling efficiency.

In order to realize the utility model discloses the mesh, the utility model provides a pair of live body sampling forceps with expansion function in biliary tract, including setting up gliding slider around handle front side and face above that can, inside and connection piece one end fixed connection of slider, connection piece and the steel wire one end fixed connection of setting in the spring pipe lumen, the other end and the binding clip of steel wire are connected, and during the pulling slider, the sampling spoon that drives on the binding clip is opened and is taken a sample with the closure, the binding clip is including the body that is equipped with the inner chamber, and the seal wire passes from the center of inner chamber, the sampling spoon sets up the side at the binding clip.

According to the preferable technical scheme, the cross section of the front end of the body is a trapezoidal structure gradually narrowed and widened, the trapezoidal structure can firstly expand a narrow part of a living body, and a sampling spoon arranged on the side surface is used for taking a biopsy lesion sample in the center of a living body lesion.

The utility model provides a technical scheme, the binding clip is including the body that is equipped with the inner chamber, can follow the seal wire the center of inner chamber is passed, the body side is equipped with first recess, be equipped with the pivot in the first recess, the spoon handle suit of sampling spoon uses the pivot to rotate as the axle center in the pivot, the inboard of spoon handle and be equipped with the extension spring rigid coupling on the lateral wall of first recess at the upside of pivot, be equipped with the pull ring at spoon handle and extension spring relative position, pull ring and first steel wire one end fixed connection, the other end of first steel wire is worn out and is connected connection piece fixed connection on the slider from first bullport on the first recess.

The preferred technical scheme the middle part of pull ring is equipped with the spliced pole, spliced pole and first steel wire one end fixed connection play and let the sampling spoon open the effect of most laborsaving smoothly.

In a preferred embodiment, the first guide hole is an arc-shaped hole.

The utility model discloses a spoon, including the spoon handle, the inboard of spoon handle is equipped with the extension spring rigid coupling on the lateral wall of second recess, the upside of first recess is equipped with the second recess, the top of second recess is equipped with the second bullport, the second steel wire that is equipped with in the second bullport and the pull ring fixed connection on the spoon handle of sampling spoon, the inboard of spoon handle just is equipped with the extension spring rigid coupling on the lateral wall of second recess in the downside of pivot, second steel wire and connection piece fixed connection on the slider.

Preferably, the cross section of the upper side of the second guide hole is semicircular.

According to the preferable technical scheme, the first steel wire and the second steel wire are fixedly connected with the connecting sheet on the sliding block after being fixedly connected through the fixing body, and the effect that two sampling spoons are opened for sampling at the same time is achieved

According to the preferable technical scheme, a plurality of teeth which are uniformly arranged are arranged at the opening of the sampling spoon.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model can expand the narrow part through the narrow part, thereby playing the role of an expansion tube, and only needing one-time operation, not only playing the role of expanding the narrow part, but also leading the sampling spoon to reach the narrow part, and obtaining a biopsy lesion sample in the center of the living body lesion;

2. the utility model has two functions of expanding and obtaining the biopsy lesion sample, and the double functions of expanding and biopsy are reflected;

3. the utility model arranges the sampling spoons at the two sides or the lower side of the binding clip, and can simultaneously take two or four biopsy samples, thereby shortening the operation time and improving the sampling efficiency;

4. the utility model discloses can open fast and carry out the live body sample and can reset fast.

Drawings

FIG. 1 is a front view of a prior art overall structure;

FIG. 2 is an enlarged front elevational view of the jaw of FIG. 1;

fig. 3 is a front view of an external structure of a binding clip according to embodiment 1 of the present invention;

FIG. 4 is an internal structural view of FIG. 3;

FIG. 5 is a view showing an opened state of the jaw of FIG. 4;

FIG. 6 is another block diagram of the binding clip of FIG. 5;

FIG. 7 is another internal structural view of the middle jaw in embodiment 2;

figure 8 is another internal block diagram of the pliers head of figure 7.

Reference numerals

In the figure, 1-a binding clip, 101-a body, 102-a sampling spoon, 103-an inner cavity, 104-a pull ring, 105-a tension spring, 106-a spoon handle, 107-a first steel wire, 108-a first guide hole, 109-a rotating shaft, 110-a connecting column, 111-a first groove, 112-a separating plate, 113-a second steel wire, 114-a second guide hole, 115-a second groove and 116-a fixing body; 2-a spring tube; 3, sheathing; 4, connecting a sheet; 5, a sliding block; 6, a handle; 7-guide wire.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1-5, the utility model provides a pair of biopsy forceps with expansion function in biliary tract, including setting up at 6 front sides of handle and face gliding slider 5 around can, inside and the 4 one end fixed connection of connection piece of slider 5, connection piece 4 and the steel wire one end fixed connection who sets up in 2 lumens of spring pipe, the other end and the binding clip 1 of steel wire are connected, and binding clip 1 is including the body 101 that is equipped with inner chamber 103, and seal wire 7 passes from the center of inner chamber 103, and during pulling slider 5, the sampling spoon 102 that drives on the binding clip 1 is opened and is taken a sample with the closure (this is prior art, and here is no longer repeated). In this embodiment, the main body 101 is a cylinder, the cross section of the front end of the main body 101 is a trapezoid structure gradually narrowing and widening, the most front section of the main body 101 is an expanding tube structure gradually widening, wherein the expanding tube structure or the trapezoid structure can firstly expand a narrow part of a living body, and the sampling spoon 102 arranged on the side surface can take a biopsy lesion sample at the center of a living body lesion. In this embodiment, the sampling spoon 102 is disposed on one side of the forceps head 1, and the forceps head 1 disposed on the side performs sampling, so as to achieve the purpose of taking a biopsy lesion sample from the center of a living body. The specific structure of the binding clip 1 comprises a body 101 provided with an inner cavity 103, the body 101 is of a conical structure, a guide wire 7 penetrates through the center of the inner cavity 103, a first groove 111 is formed in the side face of the body 101, a rotating shaft 109 is fixedly arranged in the first groove 111, a spoon handle 106 of the sampling spoon 102 is sleeved on the rotating shaft 109, a tension spring 105 is arranged on the upper side of the rotating shaft 109 and fixedly connected to the side wall of the first groove 111 on the inner side of the spoon handle 106, a pull ring 104 is arranged at a position, opposite to the tension spring 105, of the spoon handle 106, the pull ring 104 is fixedly connected with one end of a first steel wire 107, the other end of the first steel wire 107 penetrates out of a first guide hole 108 in the first groove 111 and is fixedly connected with a connecting sheet guide hole 4 in a sliding block 5, and the first steel wire 108 is an arc-shaped hole which is arranged and can. In this embodiment, the sampling spoon 102 can rotate around the rotating shaft 109 to open and close the sampling spoon 102, the sampling spoon 102 is opened when the sliding block 5 is pulled, the sampling spoon 102 samples, and after the sliding block 5 is loosened, the sampling spoon 102 is reset and stored in the first groove 111 under the pulling force of the tension spring 105. In order to take a sample more quickly and more conveniently, a plurality of teeth which are uniformly arranged are arranged at the opening of the sampling spoon 102, and the arrangement of the teeth plays a role of quickly cutting off the sample.

In order to make the sampling smoother and to achieve the most labor-saving function of smoothly opening the sampling spoon 102, the connecting column 110 is arranged in the middle of the pull ring 104, the connecting column 110 is fixedly connected with one end of the first steel wire 107, when the first steel wire 107 is pulled, the stress point is not changed, and the force arm for opening the sampling spoon 102 can be fixed to rotate around the axis of the rotating shaft 109 for opening.

As shown in fig. 6, in order to obtain two biopsy specimens from the left and right simultaneously, the present embodiment further provides another structure, i.e. two sets of sampling scoops 102 are respectively disposed on two sides of the outer side of the main body 101.

Example 2

The present embodiment is further improved on the basis of embodiment 1, and the other structures are the same, except that: as shown in fig. 7, in this embodiment, in order to simultaneously take two samples at two upper and lower positions of a living body lesion and allow two sampling scoops 102 to simultaneously open and sample and close at the same side, a second recess 115 is further disposed on the upper side of the first recess 111, a partition plate 112 is disposed between the first recess 111 and the second recess 115 to separate the two samples, so as to prevent the two samples from being affected or contaminated, a second guide hole 114 is disposed on the top of the second recess 115, a second steel wire 113 disposed in the second guide hole 114 is fixedly connected to a pull ring 104 on a scoop handle 106 of the sampling scoop 102, a tension spring 105 disposed on the lower side of a rotating shaft 109 inside the scoop handle 106 is fixedly connected to a side wall of the second recess connecting piece 115, and the second steel wire 113 is fixedly connected to a 4 on the slider 5. In this embodiment, the upper side of the second guiding hole 114 has a semicircular section to smoothly open and reset the sampling spoon 102 under the pulling force of the tension spring 105. Another preferred technical scheme is that a fixing body 116 is arranged on the first steel wire 107 and the second steel wire 113, the first steel wire 107 and the second steel wire 113 are fixedly connected through the fixing body 116, and then are fixedly connected with the connecting sheet 4 on the sliding block 5, when the sliding block 5 is pulled, two sampling scoops 102 which are arranged oppositely can be opened and closed to reset synchronously when two samples are taken simultaneously.

As shown in fig. 8, in order to achieve the purpose of taking 4 biopsy samples from the upper, lower, left and right positions of the lesion tissue of the living body at the same time, the present embodiment further provides another structure, that is, 4 sets of sampling scoops 102 are respectively disposed at the upper and lower positions of the same side and the upper and lower positions of the opposite side outside the body 101, so as to achieve the effect of taking four biopsy samples at most at a time.

The present invention has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and examples, and various changes can be made without departing from the concept of the present invention within the knowledge range of those skilled in the art.

Claims

1. The utility model provides a biopsy forceps that has expansion function in biliary tract, is including setting up slider (5) that can slide around handle (6) front side and above that, slider (5) inside and connection piece (4) one end fixed connection, connection piece (4) and the steel wire one end fixed connection who sets up in spring pipe (2) tube cavity, the other end and binding clip (1) of steel wire are connected, binding clip (1) is including body (101) that are equipped with inner chamber (103), and seal wire (7) pass from the center of inner chamber (103), and when pulling slider (5), drive sampling spoon (102) on binding clip (1) and open and the closure sample, its characterized in that, sampling spoon (102) set up the side of binding clip (1).

2. The biopsy forceps with the expansion function in the biliary tract according to claim 1, wherein the front end of the body (101) is a gradually narrowing and widening ladder-shaped structure, the ladder-shaped structure can firstly expand a narrow part of a living body, and a side sampling spoon (102) is arranged to take a biopsy lesion sample at the center of a lesion of the living body.

3. The biopsy forceps with the expansion function in the biliary tract according to claim 1 or 2, wherein a first groove (111) is formed in a side surface of the body (101), a rotating shaft (109) is formed in the first groove (111), a spoon handle (106) of the sampling spoon (102) is sleeved on the rotating shaft (109) and rotates around the rotating shaft (109), a tension spring (105) is arranged on the inner side of the spoon handle (106) and on the upper side of the rotating shaft (109) and fixedly connected to a side wall of the first groove (111), a pull ring (104) is arranged at a position, opposite to the tension spring (105), of the spoon handle (106), the pull ring (104) is fixedly connected with one end of a first steel wire (107), and the other end of the first steel wire (107) penetrates out of a first guide hole (108) in the first groove (111) and is fixedly connected with a connecting piece (4) on the slider (5).

4. The biopsy forceps with the biliary tract dilation function according to claim 3, wherein a connecting column (110) is disposed in the middle of the pull ring (104), and the connecting column (110) is fixedly connected to one end of the first steel wire (107) to enable the sampling spoon (102) to be smoothly opened with minimal effort.

5. The biopsy forceps with dilation function in the biliary tract of claim 3, wherein the first guide hole (108) is an arc-shaped hole.

6. The biopsy forceps with the biliary tract dilation function according to claim 3, wherein a second groove (115) is disposed on an upper side of the first groove (111), a second guide hole (114) is disposed at a top of the second groove (115), a second steel wire (113) disposed in the second guide hole (114) is fixedly connected to the pull ring (104) on the spoon handle (106) of the sampling spoon (102), a tension spring (105) is disposed on an inner side of the spoon handle (106) and on a lower side of the rotation shaft (109) and fixedly connected to a side wall of the second groove (115), and the second steel wire (113) is fixedly connected to the connecting piece (4) on the slider (5).

7. The biopsy forceps having an expansion function in the biliary tract according to claim 6, wherein the second guide hole (114) has a semicircular upper side cross-section.

8. The biopsy forceps with the expansion function in the biliary tract according to claim 6, wherein the first steel wire (107) and the second steel wire (113) are fixedly connected with the connecting piece (4) on the sliding block (5) after being fixedly connected through the fixing body (116), so as to perform the function of opening the two sampling scoops (102) for sampling simultaneously.

9. The biopsy forceps with dilation function in the biliary tract of claim 1, wherein the opening of the sampling spoon (102) is provided with a plurality of teeth arranged uniformly.