CN221555728U - Biopsy forceps - Google Patents

Abstract

A biopsy forceps comprises a base, wherein one end of the base is connected with a forceps body, the base is provided with a first driving device capable of sliding, a sleeve is arranged outside the forceps body, one end of the sleeve is fixedly connected with the first driving device, the first driving device drives the sleeve to switch between a first position and a second position, when the sleeve is in the first position, a forceps head is covered by the sleeve, and when the sleeve is in the second position, the forceps head is exposed; the base is also provided with a second driving device which can slide and is used for driving the clamp head to open and close, a control wire is arranged in the clamp body, one end of the control wire is fixedly connected with the second driving device, the clamp head is provided with a driving wire, and the driving wire is fixedly connected with the other end of the control wire; the first driving device and the second driving device operate independently of each other; the front end of the clamp head is provided with a spike part. The design of the pincer head spike part can obtain deep and large amount of pathological tissues for lesions such as larger tumors, and the pincer head can be prevented from being worn when the pincer head is stretched into an endoscope forceps channel by the sleeve, so that the service life of the forceps channel is prolonged.

Description

Biopsy forceps

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a biopsy forceps.

Background

In recent years, in clinical medical examinations, endoscopy has been widely used as an auxiliary diagnostic method. A biopsy forceps is a simple device for diagnosing and treating diseases by clamping mucous membrane or tissue on the inner surface of a cavity, and when a lesion part in a patient is checked, the biopsy forceps can extend into the body through an endoscope forceps channel to clamp the lesion tissue. By taking a sample through an endoscope, the micro-wound and pain are small, so that the endoscopy is a popular diagnosis method. But today's bioptomes suffer from problems when used.

When the endoscope detects a large submucosal tumor lesion, the lesion level and the property are often determined by means of ultrasound and biopsy for judging the specific property or further assisting chemotherapy targeting treatment, but the ultrasound endoscope can only probe the lesion level; the ultrasonic endoscope puncture technology has the advantages of less tissue quantity and more expensive cost; the common biopsy forceps under the endoscope can only clamp shallow and superficial tissues of lesions, and when the infiltration depth of certain lesions (such as large interstitial tumor, MALT lymphoma and the like) is deep and the range of the lesions is large, clear and ideal pathological results are often not obtained due to shallow materials or the fact that deep tissues cannot be clamped.

Disclosure of utility model

In view of the shortcomings of the background art, the utility model aims to provide biopsy forceps.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The biopsy forceps comprise a base, wherein one end of the base is connected with a forceps body, the base is provided with a first driving device capable of sliding, a sleeve is arranged outside the forceps body, one end of the sleeve is fixedly connected with the first driving device, the first driving device drives the sleeve to switch between a first position and a second position, when the sleeve is in the first position, the forceps head is covered by the sleeve, and when the sleeve is in the second position, the forceps head is exposed; the base is also provided with a second driving device which can slide and is used for driving the clamp head to open and close, a control wire is arranged in the clamp body, one end of the control wire is fixedly connected with the second driving device, the clamp head is provided with a driving wire, and the driving wire is fixedly connected with the other end of the control wire; the first driving device and the second driving device operate independently; the front end of the clamp head is provided with a spike part.

Further, the first driving device is arranged between the clamp body and the second driving device.

Further, a first limiting block is arranged between the first driving device and the second driving device.

Further, the first driving device comprises a mounting cylinder, a first mounting ring and a second mounting ring, and the first mounting ring and the second mounting ring are respectively and fixedly connected to two ends of the side wall of the mounting cylinder; the first mounting ring is close to the clamp body, and one end of the sleeve is fixedly connected with the first mounting ring.

Further, an abdication groove is arranged at the axis of the base and is positioned in the sliding range of the second driving device, and one end of the control wire is fixedly connected to the inside of the second driving device through the abdication groove.

Further, the forceps head comprises an upper forceps flap and a lower forceps flap, wherein the front end of the upper forceps flap is provided with an inclined plane, and the horizontal length of the inclined plane is not less than 1/3 of the length of the upper forceps flap.

Further, one end of the first driving device, which is close to the pliers body, is provided with a second limiting block, and one end of the second driving device, which is far away from the first driving device, is provided with a third limiting block.

Further, the control line is a stainless steel wire.

Further, the other end of the base is connected with a first holding part, and the diameter of the first holding part is 3-5.5cm.

Further, the second driving device is provided with a second holding part, and the diameter of the second holding part is 3-5.5cm.

The beneficial effects of the utility model are as follows:

1. The utility model provides a biopsy forceps, which comprises a base, wherein one end of the base is connected with a forceps body, the base is provided with a first driving device capable of sliding, a sleeve is arranged outside the forceps body, one end of the sleeve is fixedly connected with the first driving device, the first driving device drives the sleeve to switch between a first position and a second position, when the sleeve is positioned at the first position, a forceps head is covered by the sleeve, and when the sleeve is positioned at the second position, the forceps head is exposed; the base is also provided with a second driving device which can slide and is used for driving the clamp head to open and close, a control wire is arranged in the clamp body, one end of the control wire is fixedly connected with the second driving device, the clamp head is provided with a driving wire, and the driving wire is fixedly connected with the other end of the control wire; the first driving device and the second driving device operate independently of each other; the front end of the clamp head is provided with a spike part. The design of the pincer head spike part can obtain deep and large amount of pathological tissues for lesions such as larger tumors, and the pincer head can be prevented from being worn when the pincer head is stretched into an endoscope forceps channel by the sleeve, so that the service life of the endoscope forceps channel is prolonged.

2. According to the biopsy forceps provided by the utility model, the first limiting block is arranged between the first driving device and the second driving device, and the first limiting block is arranged so that the first driving device and the second driving device can operate independently and are not interfered with each other.

3. According to the biopsy forceps provided by the utility model, the first driving device comprises the mounting cylinder, the first mounting ring and the second mounting ring are respectively and fixedly connected to two ends of the side wall of the mounting cylinder, and the first driving device can be ensured to better assist a user to use through the arrangement of the I-shaped structure of the first driving device.

4. According to the biopsy forceps provided by the utility model, the second limiting block is arranged at one end, close to the forceps body, of the first driving device, the sliding range of the first driving device on the base is limited by the arrangement of the second limiting block, and a user is prevented from sliding the first driving device out of the base; the one end that second drive arrangement kept away from first drive arrangement is equipped with the third stopper, and the setting of third stopper has limited the slip scope of second drive arrangement on the base, prevents that the user from sliding out the base with it.

5. The biopsy forceps provided by the utility model have the advantages that the other end of the base is connected with the first holding part, and the diameter of the first holding part is 3-5.5cm; the second driving device is provided with a second holding part, and the diameter of the second holding part is 3-5.5cm; when the biopsy forceps are used, the first holding part and the second holding part are held and controlled by fingers, so that the biopsy forceps can be accurately controlled by a user, the diameters of the first holding part and the second holding part are suitable for the fingers of most people, and the biopsy forceps are convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a biopsy forceps of the utility model (with the cannula in a first position);

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of a biopsy forceps of the utility model (with the sleeve in a second position and the forceps head closed);

FIG. 4 is an enlarged schematic view of FIG. 3 at B;

FIG. 5 is an enlarged schematic view of FIG. 3 at C;

FIG. 6 is a schematic view of a biopsy forceps of the utility model (with the sleeve in a second position and the forceps head open);

FIG. 7 is an enlarged schematic view of FIG. 6 at D;

FIG. 8 is an enlarged schematic view of FIG. 6 at E;

FIG. 9 is an exploded view of a biopsy forceps of the utility model;

FIG. 10 is an enlarged schematic view of FIG. 9 at F;

In the figure, 101, a base; 102. a relief groove; 103. a first grip portion; 104. a second grip portion; 20. a clamp body; 30. a first driving device; 301. a mounting cylinder; 302. a first mounting ring; 303. a second mounting ring; 40. a sleeve; 50. a clamp head; 501. an upper clamp valve; 502. a lower clamp flap; 60. a second driving device; 70. a control line; 80. a driving line; 901. a first limiting block; 902. a second limiting block; 903. and a third limiting block.

Detailed Description

The utility model is described in detail below with reference to fig. 1-10.

The biopsy forceps comprise a base 101, wherein one end of the base 101 is connected with a forceps body 20, the base 101 is provided with a first driving device 30 capable of sliding, a sleeve 40 is arranged outside the forceps body 20, one end of the sleeve 40 is fixedly connected with the first driving device 30, the first driving device 30 drives the sleeve 40 to switch between a first position and a second position, when the sleeve 40 is in the first position, a forceps head 50 is covered by the sleeve 40, and when the sleeve 40 is in the second position, the forceps head 50 is exposed; the base 101 is also provided with a second driving device 60 which can slide and is used for driving the clamp head 50 to open and close, the clamp body 20 is internally provided with a control wire 70, one end of the control wire 70 is fixedly connected with the second driving device 60, the clamp head 50 is provided with a driving wire 80, and the driving wire 80 is fixedly connected with the other end of the control wire 70; the first drive means 30 and the second drive means 60 operate independently of each other; the front end of the binding clip 50 is provided with a spike. The design of the spike part of the forceps head 50 can obtain deep and large amount of pathological tissues for lesions such as larger tumors, and the sleeve 40 can prevent the forceps head 50 from wearing when the forceps head extends into an endoscope forceps channel, so that the service life of the endoscope forceps channel is prolonged. Specifically, the forceps head 50 includes an upper forceps flap 501 and a lower forceps flap 502, one end of the upper forceps flap 501 and one end of the lower forceps flap 502, which are close to the forceps body 20, are respectively provided with driving wires 80, and each driving wire 80 is fixedly connected with a control wire 70; the forceps head 50 is different from the forceps head 50 of a common biopsy forceps in that the forceps head 50 has longer length, and the spike part arranged at the front end of the forceps head 50 is in a blade shape, so that the forceps head is very sharp, can penetrate the shallow layer of pathological tissues, and can achieve the purpose of sampling the inner deep layer of the pathological tissues; the head 50 differs from a piercing needle in that the amount of sampling is greater and the cost is lower.

In this embodiment, the first driving device 30 is disposed between the clamp body 20 and the second driving device 60, and the clamp body 20, the first driving device 30 and the second driving device 60 are sequentially disposed in a position arrangement, which is simpler and easier to install than the structure in which the clamp body 20, the second driving device 60 and the first driving device 30 are sequentially disposed in a position arrangement.

In this embodiment, a first limiting block 901 is disposed between the first driving device 30 and the second driving device 60, and the first limiting block 901 is disposed to enable the first driving device 30 and the second driving device 60 to operate independently of each other, so that the second driving device 60 is prevented from sliding when the first driving device 30 slides, or the first driving device 30 slides when the second driving device 60 slides.

In this embodiment, the first driving device 30 includes a mounting cylinder 301, a first mounting ring 302 and a second mounting ring 303, where the first mounting ring 302 and the second mounting ring 303 are respectively and fixedly connected to two ends of a side wall of the mounting cylinder 301, and when in use, fingers are clamped in the i-shaped grooves, that is, the mounting cylinder 301, so that the operation and control can be facilitated, and finer operation can be performed by using the i-shaped structure; the first mounting ring 302 is adjacent to the clamp body 20, and one end of the sleeve 40 is fixedly connected to the first mounting ring 302; specifically, one end of the sleeve 40 is fixedly attached to the outer wall of the first mounting ring 302.

In the present embodiment, a yielding groove 102 is disposed at the axis of the base 101, and the yielding groove 102 is located within the sliding range of the second driving device 60, and one end of the control wire 70 is fixedly connected to the inside of the second driving device 60 through the yielding groove 102.

In this embodiment, the binding clip 50 includes an upper jaw 501 and a lower jaw 502, the front end of the upper jaw 501 is provided with an inclined plane, and the horizontal length of the inclined plane is not less than 1/3 of the length of the upper jaw 501; the control line 70 is a stainless steel wire.

In this embodiment, a second limiting block 902 is disposed at one end of the first driving device 30 near the pliers body 20, and the sliding range of the first driving device 30 on the base 101 is limited by the second limiting block 902, so as to prevent the user from sliding the first driving device out of the base 101; the end of the second driving device 60 far away from the first driving device 30 is provided with a third limiting block 903, and the sliding range of the second driving device 60 on the base 101 is limited by the arrangement of the third limiting block 903, so that a user is prevented from sliding the second driving device out of the base 101.

In this embodiment, the other end of the base 101 is connected with a first holding part 103, the diameter of the first holding part 103 is 3-5.5cm, the second driving device 60 is provided with a second holding part 104, the diameter of the second holding part 104 is 3-5.5cm, when the biopsy forceps are used, the first holding part 103 and the second holding part 104 are held and controlled by fingers, so that the accurate control of the biopsy forceps by a user is realized, and the diameters of the first holding part 103 and the second holding part 104 are suitable for the fingers of most people, so that the biopsy forceps are convenient to use; specifically, the second driving device 60 is provided with two left and right second holding portions 104, and the diameters of the first holding portion 103 and the second holding portion 104 are 5cm, respectively.

The utility model provides a biopsy forceps, which has the following working principle:

When in use, the biopsy forceps enter the position of pathological tissue to be taken in a patient through an endoscope forceps channel, after the biopsy forceps reach the position, fingers of one hand hold the first holding part 103, fingers of the other hand are placed on the mounting cylinder 301 of the first driving device 30, the first driving device 30 is pushed towards the first holding part 103, sliding is stopped when the first driving device 30 touches the first limiting block 901, and at the moment, the sleeve 40 moves upwards by a certain distance under the driving of the first driving device 30, so that the forceps head 50 covered by the sleeve 40 is exposed; after the clamp 50 is exposed, the second holding part 104 is held by fingers, the second driving device 60 is pushed towards the clamp body 20 through the second holding part 104, the second driving device 60 stops sliding when touching the first limiting block 901, at the moment, under the driving of the second driving device 60, the control wire 70 in the clamp body 20 slides towards the clamp 50, meanwhile, the control wire 70 drives the driving wire 80 to move out of the clamp body 20, the driving wire 80 which is separated from the clamp body 20 is naturally unfolded to the left side and the right side to form a V shape, the upper clamp valve 501 and the lower clamp valve 502 are separated, and the clamp 50 is in an open state.

After the use, the second driving device 60 slides towards the first holding part 103, the control wire 70 slides back to the original position, the driving wire 80 retracts into the clamp body 20, and the clamp head 50 is in a closed state; the first drive means 30 is then slid in the direction of the head 50 to move the sleeve 40 downwardly over the head 50 and finally the entire biopsy forceps is moved out of the endoscope channel.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement it, and not to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The biopsy forceps comprise a base, and are characterized in that one end of the base is connected with a forceps body, the base is provided with a first slidable driving device, a sleeve is arranged outside the forceps body, one end of the sleeve is fixedly connected with the first driving device, the first driving device drives the sleeve to switch between a first position and a second position, when the sleeve is in the first position, a forceps head is covered by the sleeve, and when the sleeve is in the second position, the forceps head is exposed; the base is also provided with a second driving device which can slide and is used for driving the clamp head to open and close, a control wire is arranged in the clamp body, one end of the control wire is fixedly connected with the second driving device, the clamp head is provided with a driving wire, and the driving wire is fixedly connected with the other end of the control wire; the first driving device and the second driving device operate independently; the front end of the clamp head is provided with a spike part.

2. A biopsy forceps as claimed in claim 1, wherein the first drive means is provided intermediate the body and the second drive means.

3. A biopsy forceps as claimed in claim 1, wherein a first stop is provided between the first drive means and the second drive means.

4. The biopsy forceps of claim 1, wherein the first drive means comprises a mounting barrel, a first mounting ring, and a second mounting ring, the first and second mounting rings being fixedly attached to respective ends of a sidewall of the mounting barrel; the first mounting ring is close to the clamp body, and one end of the sleeve is fixedly connected with the first mounting ring.

5. The biopsy forceps of claim 1, wherein a yielding groove is formed in the axis of the base, the yielding groove is located in the sliding range of the second driving device, and one end of the control wire is fixedly connected to the inside of the second driving device through the yielding groove.

6. A biopsy forceps according to claim 1, wherein the forceps head comprises an upper jaw and a lower jaw, the front end of the upper jaw being provided with a bevel, the horizontal length of the bevel being not less than 1/3 of the length of the upper jaw.

7. The biopsy forceps of claim 1, wherein a second stop is provided at an end of the first drive means adjacent the body and a third stop is provided at an end of the second drive means remote from the first drive means.

8. A biopsy forceps as claimed in claim 1, wherein the control wire is a stainless steel wire.

9. A biopsy forceps according to claim 1, wherein the other end of the base is connected to a first grip portion having a diameter of 3-5.5cm.

10. A biopsy forceps according to claim 1, wherein the second drive means is provided with a second grip portion having a diameter of 3-5.5cm.