CN221786378U - Biopsy forceps - Google Patents

Abstract

The biopsy forceps of the embodiment of the present application include a forceps head drive assembly, a flexible sleeve, a flexible connector, a first mounting tube and a forceps head assembly, the flexible connector is inserted into the flexible sleeve, the forceps head drive assembly is arranged at one end of the flexible sleeve and connected to one end of the flexible connector, the first mounting tube is arranged at the other end of the flexible sleeve, the forceps head assembly is telescopically arranged on the first mounting tube and connected to the other end of the flexible connector, the forceps head drive assembly can drive the forceps head assembly to clamp the diseased tissue by means of the flexible connector, and then retract the forceps head assembly with the diseased tissue into the first mounting tube, the forceps head drive assembly can also drive the forceps head assembly to extend out of the first mounting tube by means of the flexible connector, and then open the forceps head assembly, and a barb structure is also arranged in the first mounting tube. The biopsy forceps of the embodiment of the present application can remove multiple diseased tissues by entering the patient's body once.

Description

Biopsy forceps

Technical Field

The present application relates to the field of medical devices, and in particular to a biopsy forceps.

Background Art

Biopsy forceps is a medical tool used to cut and sample lesions in the abdominal cavity of the human body, and is generally used in conjunction with an endoscope.

During endoscopic examination, when pathological examination of the lesion is required, the biopsy forceps are generally inserted into the patient's body through the endoscope forceps channel to clamp the tissue of the lesion. Sampling with biopsy forceps is less painful and less traumatic, so it is very popular among doctors and patients.

In the clamp head assembly of the existing biopsy forceps, the two clamp heads are hinged to the clamp head frame by the same rivet. Limited by the small sample storage space in the clamp head assembly, the existing biopsy forceps can only be used for one time or a small amount of sampling. In conventional endoscopic examination, a lesion or a biopsy usually requires about 3 to 4 specimens to be taken. The use of the above-mentioned biopsy forceps requires about 3 to 4 times of advancing and retreating the clamp through the endoscope clamp channel, and the objective lens of the endoscope and the clamp head of the biopsy forceps need to be adjusted after each entry, which is time-consuming and labor-intensive. Furthermore, the wound surface of each inspection will begin to bleed a small amount within a few seconds after the inspection, and it will take 1 to 5 minutes to stop by itself. This small amount of bleeding will contaminate the lesion, affect the field of vision, and reduce the accuracy of subsequent inspections. Therefore, in view of the above phenomenon, it is urgent to design and produce an endoscopic biopsy forceps to meet the needs of actual use.

Therefore, there is an urgent need for a biopsy forceps that can clamp multiple diseased tissues at one time to overcome the above-mentioned defects.

Utility Model Content

The purpose of the present application is to provide a biopsy forceps capable of clamping a plurality of diseased tissues at one time.

To achieve the above-mentioned purpose, an embodiment of the present application provides a biopsy forceps, including a forceps head drive assembly, a flexible sleeve, a flexible connecting piece, a first mounting tube and a forceps head assembly, wherein the flexible connecting piece is inserted into the flexible sleeve, the forceps head drive assembly is arranged at one end of the flexible sleeve and connected to one end of the flexible connecting piece, the first mounting tube is arranged at the other end of the flexible sleeve, the forceps head assembly is telescopically arranged in the first mounting tube and connected to the other end of the flexible connecting piece, the forceps head drive assembly can drive the forceps head assembly to clamp the diseased tissue by means of the flexible connecting piece, and then retract the forceps head assembly with the diseased tissue into the first mounting tube, the forceps head drive assembly can also drive the forceps head assembly to extend out of the first mounting tube by means of the flexible connecting piece, and then open the forceps head assembly, and a barb structure is also provided in the first mounting tube, and the barb structure is used to keep the diseased tissue brought into the first mounting tube by the forceps head assembly in the first mounting tube.

In some embodiments of the present application, the clamp head assembly includes a first guide slide, two oppositely arranged jaw members and a first elastic member corresponding to the jaw members one by one; the first guide slide is slidably arranged in the first mounting tube along the length direction of the first mounting tube, and one end of the first guide slide is connected to the flexible connecting member; the jaw members are swingably arranged at one end of the first guide slide away from the flexible connecting member; the first elastic members are respectively arranged between the jaw members corresponding to them and the first guide slide, and the first elastic member always has a tendency to drive the jaw members corresponding to them to make a swinging motion in a direction away from the other jaw member.

In some embodiments of the present application, the two jaw members are each correspondingly provided with biting teeth.

In some embodiments of the present application, the pliers head assembly also includes a connecting member corresponding to the jaw members one by one, one end of the connecting member is fixed to the first guide sliding member, the other end of the connecting member is connected to the corresponding jaw member, and a first elastic member corresponding to the jaw member is arranged between the connecting member and the jaw, and the two connecting members are arranged separately and form an avoidance space for avoiding the inverted hook structure.

In some embodiments of the present application, the clamp head driving assembly includes a second mounting tube, a second guide slide, an operating member and a second elastic member; the second mounting tube is arranged at one end of the flexible sleeve; the second guide slide is slidably arranged in the second mounting tube along the length direction of the second mounting tube, and one end of the second guide slide is connected to the flexible connecting member; the operating member is connected to the second guide slide, and the operating member can drive the second guide slide to slide in the direction close to the flexible sleeve under operation; the second elastic member is arranged between the second mounting tube and the second guide slide, and the second elastic member always has a tendency to drive the second guide slide to move in the direction close to the flexible sleeve.

In some embodiments of the present application, one end of the second elastic member is connected to the second mounting tube, and the other end of the second elastic member is connected to the operating member, the operating member is arranged between the second mounting tube and the second guide sliding member, and the second elastic member drives the second guide sliding member via the operating member.

In some embodiments of the present application, the pliers head driving assembly further includes a push-pull rod, one end of the push-pull rod is connected to the second guide sliding member, and the other end of the push-pull rod is connected to the operating member, and the operating member drives the second guide sliding member to slide along the length direction of the second mounting tube through the push-pull rod.

In some embodiments of the present application, a blocking piece is fixed on the operating member, and the other end of the second elastic member is connected to the blocking piece.

In some embodiments of the present application, the operating member is a cross-pivoted lever structure.

In some embodiments of the present application, a blocking structure is provided at one end of the second guide slide away from the flexible sleeve, and the blocking structure blocks the second guide slide from sliding out of the second mounting tube during the sliding movement of the second guide slide away from the flexible sleeve.

Compared with the prior art, the biopsy forceps of the embodiment of the present application include a forceps head drive assembly, a flexible sleeve, a flexible connecting piece, a first mounting tube and a forceps head assembly. The flexible connecting piece is inserted into the flexible sleeve, the forceps head drive assembly is arranged at one end of the flexible sleeve and connected to one end of the flexible connecting piece, the first mounting tube is arranged at the other end of the flexible sleeve, the forceps head assembly is telescopically arranged in the first mounting tube and connected to the other end of the flexible connecting piece, the forceps head drive assembly can drive the forceps head assembly to clamp the diseased tissue by means of the flexible connecting piece, and then retract the forceps head assembly with the diseased tissue into the first mounting tube, the forceps head drive assembly can also drive the forceps head assembly to extend out of the first mounting tube by means of the flexible connecting piece, and then open the forceps head assembly, and a barb structure is also provided in the first mounting tube, the barb structure is used to keep the diseased tissue brought into the first mounting tube by the forceps head assembly in the first mounting tube, so that the biopsy forceps of the embodiment of the present application can enter the patient's body once and clamp out multiple diseased tissues.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG. 1 is a three-dimensional view of a biopsy forceps according to an embodiment of the present application.

2 is a three-dimensional view of the assembly connection of the first mounting tube, the forceps head assembly, part of the flexible sleeve and part of the flexible connecting member in the biopsy forceps shown in FIG. 1 .

FIG. 3 is a three-dimensional view of the flexible sleeve shown in FIG. 2 after further hiding a portion of the flexible sleeve.

FIG. 4 is an internal view of the structure shown in FIG. 2 after a portion of the flexible sleeve is further hidden.

5 is an internal view of the pliers head assembly shown in FIG. 2 when it extends out of the first mounting tube.

6 is an internal view of the pliers head assembly shown in FIG. 2 when it is retracted into the first mounting tube.

FIG. 7 is a three-dimensional view of the assembly and connection of the forceps head drive assembly, a portion of the flexible sleeve, and a portion of the flexible connector in the biopsy forceps shown in FIG. 1 .

FIG. 8 is a perspective view of the structure shown in FIG. 7 after a portion of the flexible sleeve and a portion of the second mounting tube continue to be hidden.

DETAILED DESCRIPTION

In the description of the embodiments of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and are used to distinguish the described features, without distinction of order or importance.

Please refer to Figures 1-3. The biopsy forceps 100 of the embodiment of the present application includes a forceps head drive assembly 1, a flexible sleeve 2, a flexible connector 5, a first mounting tube 3 and a forceps head assembly 4. The flexible connector 5 is inserted into the flexible sleeve 2. The forceps head drive assembly 1 is arranged at one end of the flexible sleeve 2 and connected to one end of the flexible connector 5. The first mounting tube 3 is arranged at the other end of the flexible sleeve 2. The forceps head assembly 4 is telescopically arranged on the first mounting tube 3 and connected to the other end of the flexible connector 5, so that the forceps head drive assembly 1 drives the forceps head assembly 4 to clamp the diseased tissue 101 through the flexible connector 5, and then the forceps head assembly 4 with the diseased tissue 101 is retracted into the first mounting tube 3. It is also convenient for the forceps head drive assembly 1 to drive the forceps head assembly 4 to extend out of the first mounting tube 3 through the flexible connector 5, and then the forceps head assembly 4 is opened. More specifically, as follows:

As shown in FIGS. 3-6 , a barb structure 10 is further provided in the first mounting tube 3 so that the barb structure 10 can bring the forceps head assembly 4 into the first mounting tube 3 and keep the diseased tissue 101 in the first mounting tube 3, thereby preventing the forceps head assembly 4 from bringing the diseased tissue 101 out of the first mounting tube 3 when extending out of the first mounting tube 3, thereby allowing the biopsy forceps 100 of the embodiment of the present application to enter the patient's body once and remove multiple diseased tissues 101.

As shown in Fig. 2-6, the clamp head assembly 4 comprises a first guide slide 6, two oppositely arranged jaws 8 and a first elastic member 17 corresponding to the jaws 8. The first guide slide 6 is slidably arranged in the first mounting tube 3 along the length direction of the first mounting tube 3. One end of the first guide slide 6 is connected to the flexible connecting member 5. The jaws 8 are swingably arranged at one end of the first guide slide 6 away from the flexible connecting member 5. The first elastic members 17 are respectively arranged between the corresponding jaws 8 and the first guide slide 6, so that the first elastic member 17 always has a tendency to drive the corresponding jaws 8 to perform a swinging motion in a direction away from the other jaws 8, that is, to open the clamp head assembly 4. Preferably, the two jaws 8 are respectively provided with biting teeth 9 so that the jaws 8 can clamp the diseased tissue 101, but this is not limited to this.

As shown in Figures 2-6, the pliers head assembly 4 also includes a connecting member 7 corresponding to the jaw member 8 one by one, one end of the connecting member 7 is fixed to the first guide slide member 6, and the other end of the connecting member 7 is connected to the corresponding jaw member 8. The first elastic member 17 corresponding to the jaw member 8 is arranged between the connecting member 7 and the jaw, and the two connecting members 7 are separated and arranged to form an avoidance space to avoid the hook structure 10.

As shown in Figures 5-8, the pliers head driving assembly 1 includes a second mounting tube 12, a second guide slide 13, an operating member 11 and a second elastic member 16. The second mounting tube 12 is arranged at one end of the flexible sleeve 2; the second guide slide 13 is slidably arranged in the second mounting tube 12 along the length direction of the second mounting tube 12, one end of the second guide slide 13 is connected to the flexible connecting member 5, and the operating member 11 is connected to the second guide slide 13, so that the operating member 11 drives the second guide slide 13 to slide in the direction close to the flexible sleeve 2 under operation; the second elastic member 16 is arranged between the second mounting tube 12 and the second guide slide 13, so that the second elastic member 16 always has a tendency to drive the second guide slide 13 to move in the direction close to the flexible sleeve 2.

As shown in Figures 7-8, one end of the second elastic member 16 is connected to the second mounting tube 12, and the other end of the second elastic member 16 is connected to the operating member 11. The operating member 11 is arranged between the second mounting tube 12 and the second guide sliding member 13, so that the second elastic member 16 drives the second guide sliding member 13 to slide through the operating member 11.

As shown in Figs. 7-8, the pliers head driving assembly 1 further includes a push-pull rod 14, one end of which is connected to the second guide slide 13, and the other end of which is connected to the operating member 11, so that the operating member 11 drives the second guide slide 13 to slide along the length direction of the second mounting tube 12 through the push-pull rod 14. Preferably, the push-pull rod 14 is arranged along the length direction of the second mounting tube 12, so that the operating member 11 drives the second guide slide 13 to slide along the length direction of the second mounting tube 12 through the push-pull rod 14, but the present invention is not limited thereto.

As shown in FIGS. 7-8 , a blocking piece 15 is fixed on the operating member 11 , and the other end of the second elastic member 16 is connected to the blocking piece 15 .

As shown in FIGS. 7-8 , the operating member 11 is a cross-pivoted lever structure for easy operation by the user.

As shown in FIGS. 7-8 , a blocking structure 18 is provided at one end of the second guide slide 13 away from the flexible sleeve 2 . During the sliding movement of the second guide slide 13 away from the flexible sleeve 2 , the blocking structure 18 blocks the second guide slide 13 from sliding out of the second mounting tube 12 .

Compared with the prior art, the biopsy forceps 100 of the embodiment of the present application includes a forceps head drive component 1, a flexible sleeve 2, a flexible connecting piece 5, a first mounting tube 3 and a forceps head component 4, wherein the flexible connecting piece 5 is inserted into the flexible sleeve 2, the forceps head drive component 1 is arranged at one end of the flexible sleeve 2 and connected to one end of the flexible connecting piece 5, the first mounting tube 3 is arranged at the other end of the flexible sleeve 2, the forceps head component 4 is telescopically arranged at the first mounting tube 3 and connected to the other end of the flexible connecting piece 5, and the forceps head drive component 1 can drive the forceps head component 4 to clamp by means of the flexible connecting piece 5 The biopsy forceps 100 of the embodiment of the present application can enter the patient's body once to remove multiple diseased tissues 101 by the biopsy forceps 100.

The above disclosure is only a preferred example of the present application, and its role is to facilitate the technical personnel in this field to understand and implement it accordingly. Of course, it cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the patent scope of the present application still fall within the scope covered by the present application.

Claims (10)

1. The utility model provides a biopsy forceps, includes binding clip drive assembly, flexible sleeve, flexible coupling spare, first installation tube and binding clip subassembly, flexible coupling spare wears to be arranged in flexible sleeve is intraductal, binding clip drive assembly set up in flexible sleeve's one end and with flexible coupling spare's one end is connected, first installation tube set up in flexible sleeve's the other end, binding clip subassembly telescopic set up in first installation tube and with flexible coupling spare's the other end is connected, binding clip drive assembly can drive the binding clip subassembly through flexible coupling spare the pathological tissue of centre gripping to make thereupon the binding clip subassembly that has this pathological tissue withdraw first installation tube, binding clip drive assembly can also drive through flexible coupling spare the binding clip subassembly stretches out first installation tube, and makes thereupon this binding clip subassembly open, its characterized in that, still be equipped with the barb structure in the first installation tube, the barb structure is used for bringing the binding clip subassembly into first installation tube in the pathological tissue of first installation tube keeps.

2. The bioptome of claim 1, wherein the jaw assembly includes:

The first guide sliding piece is arranged in the first mounting tube in a sliding manner along the length direction of the first mounting tube, and one end of the first guide sliding piece is connected with the flexible connecting piece;

Two oppositely arranged jaw pieces, wherein the jaw pieces are arranged at one end of the first guide slide piece far away from the flexible connecting piece in a swinging way; and

The first elastic pieces are respectively arranged between the corresponding jaw pieces and the first guide sliding piece, and each first elastic piece constantly has a tendency of driving the corresponding jaw piece to do deflection movement in a direction away from the other jaw piece.

3. The bioptome of claim 2, wherein each of the two jaw members is correspondingly provided with a bite tooth.

4. The biopsy forceps of claim 2, wherein the forceps head assembly further comprises connecting pieces corresponding to the jaw pieces one by one, one end of each connecting piece is fixed to the first guide sliding piece, the other end of each connecting piece is connected with the jaw piece corresponding to the connecting piece, a first elastic piece corresponding to the jaw piece is arranged between the connecting piece and the jaw, and the two connecting pieces are arranged in a spaced mode and form an avoidance space for avoiding the reversing structure.

5. The bioptome of claim 1, wherein the jaw drive assembly includes:

The second installation tube is arranged at one end of the flexible sleeve;

The second guide sliding piece is arranged in the second installation tube in a sliding manner along the length direction of the second installation tube, and one end of the second guide sliding piece is connected with the flexible connecting piece;

The operation piece is connected with the second guide slide piece and can drive the second guide slide piece to slide towards the direction approaching to the flexible sleeve under the operation; and

The second elastic piece is arranged between the second mounting tube and the second guide sliding piece and constantly has a trend of driving the second guide sliding piece to move towards the direction close to the flexible sleeve.

6. The bioptome of claim 5, wherein one end of the second resilient member is connected to the second mounting tube and the other end of the second resilient member is connected to the operating member, the operating member being disposed between the second mounting tube and the second guide slide, the second resilient member urging the second guide slide via the operating member.

7. The bioptome of claim 6, wherein the jaw actuation assembly further includes a push-pull rod, one end of the push-pull rod being coupled to the second guide slide, the other end of the push-pull rod being coupled to the operating member, the operating member being configured to urge the second guide slide to slide along the length of the second mounting tube via the push-pull rod.

8. The bioptome of claim 6, wherein the operating member has a flap secured thereto, and the other end of the second resilient member is connected to the flap.

9. The bioptome of claim 7, wherein the operating member is a cross-pivot lever structure.

10. The bioptome of claim 5, wherein an end of the second guide slide remote from the flexible sleeve is provided with a blocking structure that blocks the second guide slide from sliding out of the second mounting tube during sliding movement of the second guide slide away from the flexible sleeve.