CN211749767U - Biopsy forceps - Google Patents

Abstract

The utility model relates to a biopsy forceps contains extraction portion, handheld portion, operation portion, puncture portion and negative pressure breather pipe, and extraction portion passes through joint portion and puncture portion joint, and puncture portion pegs graft with operation portion, and the one end that puncture portion was kept away from to operation portion is connected with the negative pressure breather pipe, and handheld portion rigid coupling is in the below of operation portion, the utility model discloses can realize drawing tissue structure's fast, reduce patient's misery, the front end of biopsy forceps sets up to interchangeable extraction portion, can demolish and change new extraction portion and reduce use cost after the use, inside double cannula's design and afterbody negative pressure breather pipe cooperate and can make biopsy forceps in use have the leakproofness can not cause unexpected bacterial infection, compare with traditional clamp and draw rapidly, and pain is little to the extraction is stable.

Description

Biopsy forceps

Technical Field

The utility model relates to the field of medical equipment, concretely relates to biopsy forceps.

Background

Biopsy forceps are medical instruments used to remove tissue samples from an internal region of an animal's body. Known bioptomes include a catheter having a pair of jaws at a distal end. The jaws typically have a blade that cuts into the tissue and a lumen that retains the tissue section when the jaws are closed. A handle at the proximal end of the catheter is used to open and close the jaws. In use, the distal end of the catheter is typically inserted into the body or blood vessel of a patient (or animal) from which the desired tissue sample is taken. The clip is then pushed to the area of the body where a tissue sample is to be taken. The jaws are operated to remove a piece of tissue using a handle at the proximal end of the catheter. The catheter is then pulled out of the body and a tissue sample is taken from the jaws.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a biopsy forceps, have simple structure, convenient to use, draw advantages such as swift.

The utility model aims at realizing through the following technical scheme: a biopsy forceps comprises an extraction unit

The device comprises a part, a handheld part, an operating part, a puncture part, a negative pressure vent pipe and an injector, wherein an extraction part is clamped with the puncture part through a clamping part, the puncture part is spliced with the operating part, one end of the operating part, which is far away from the puncture part, is connected with the negative pressure vent pipe, the handheld part is fixedly connected below the operating part, the front end of the extraction part is provided with an extraction hole, a cutting blade is arranged in the extraction hole, and two sides of the tail part of the cutting blade are provided with sealing rings; the operating part comprises a pushing part, a return spring and a button, and the button is arranged at the bottom of the pushing part to drive the pushing part to move and control the cutting blade to perform cutting action; one end of the negative pressure vent pipe is fixedly connected with the operating part through a screw fixing piece, and the other end of the negative pressure vent pipe is connected with the injector through a guide pipe; in a preferred embodiment, the front end part of the puncture part is provided with a clamping bulge matched with the clamping part, the interior of the puncture part is provided with a double-layer sleeve structure comprising an inner sleeve and an outer sleeve, the inner sleeve is connected with the negative pressure vent pipe, the outer sleeve is fixedly connected with the operation part, and the front end of the outer sleeve is also provided with a sealing ring;

in a preferred embodiment, the clamping parts are knife-shaped, the number of the clamping parts is two, the clamping parts are oppositely arranged at two sides of the end part of the extraction part, and the setting directions of knife head parts of the knife-shaped clamping parts are opposite;

in a preferred embodiment, the end part of the extraction part is further provided with an end cap, a scale ring which is arranged at equal intervals is arranged between the extraction hole and the clamping part, a blade stroke gear end point for limiting the cutting blade is further arranged in the extraction part, and the extraction part can be disconnected from the sealing ring on the puncture part;

in a preferred embodiment, one end of the negative pressure vent pipe, which is far away from the operation part, is also provided with a plurality of annular bulges;

in a preferred embodiment, the front part of the hand-held part is provided with an arc-shaped holding part which accords with ergonomics, and two sides of the hand-held part are symmetrically provided with inner concave cavities;

in a preferred embodiment, the syringe port is fitted with a catheter.

The beneficial effects of the utility model are that the utility model relates to a biopsy forceps can extract tissue structure fast through the control of promotion portion, reduce patient's misery, biopsy forceps's front end sets up to interchangeable extraction portion, can demolish and change new extraction portion after the use and reduce use cost, inside double cannula's design and afterbody negative pressure breather pipe cooperate and can make biopsy forceps in use have the leakproofness can not cause unexpected bacterial infection, reset spring in the operation portion can rebound the button by oneself after the blade cutting is accomplished, the living tissue that utilizes the syringe of connection of after-off will cut inhales the cavity in the extraction portion, compare with traditional clamp and draw rapidly, pain is little, and the extraction is stable.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of an oblique structure of a biopsy forceps of the present invention.

Fig. 2 is a schematic view of the structure of the extracting portion of the biopsy forceps of the present invention.

Fig. 3 is a schematic diagram of a forward sectional structure of a biopsy forceps of the present invention.

Fig. 4 is a schematic front sectional view of an extracting portion of a biopsy forceps according to the present invention. In the figure:

1. an extraction section; 11. an extraction well; 12. a clamping part; 13. a scale ring; 14. an end cap; 15. a cutting blade; 16. a blade travel gear end point; 17. a seal ring; 2. a hand-held portion; 21. an arc-shaped holding part; 22. an inner concave cavity; 3. a negative pressure vent pipe; 31. an annular projection; 32. a spiral fixing member; 5. an operation section; 51. a return spring; 52. a pushing part; 53. a button; 8. a puncture section; 81. clamping the bulges; 82. an inner sleeve; 83. an outer sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The invention will be further described with reference to the drawings and specific examples.

Embodiment 1, as shown in fig. 3, a pair of biopsy forceps according to an embodiment of the present invention includes an extracting portion 1, a handheld portion 2, an operating portion 5, a puncturing portion 8, and a negative pressure vent pipe 3, wherein the extracting portion 1 is connected to the puncturing portion 8 through a connecting portion 12, the puncturing portion 8 is connected to the operating portion 5 in an inserting manner, one end of the operating portion 5, which is far away from the puncturing portion 8, is connected to the negative pressure vent pipe 3, the handheld portion 2 is fixedly connected to the lower portion of the operating portion 5, an extracting hole 11 is formed at the front end of the extracting portion 1, and a cutting blade 15 is disposed inside the extracting hole 11; the operation part 5 comprises a pushing part 52, a return spring 51 and a button 53, the button 53 is arranged at the bottom of the pushing part 52 to drive the pushing part 52 to move and control the cutting blade 15 to carry out cutting action, the negative pressure vent pipe 3 is fixedly connected with the operation part 5 through a screw fixing part 32, when in use, the button 53 is pressed to enable the inner sleeve to move towards the extraction part 1 through the transverse movement of the pushing part 52, meanwhile, the cutting blade 15 is driven to cut off the living tissue to be extracted, the cutting action is finished when the cutting blade 15 moves to a blade stroke gear end 16, the extraction hole 11 is also blocked by the cutting blade 15, the pushing part 52 returns to an initial position under the elastic force of the return spring 51 after cutting, at the moment, a catheter at the tail part of the biopsy forceps is connected with an injector, the cut living tissue is sucked into an internal cavity of the extraction part 1 by the extraction of the injector, and the, the pain of the patient is reduced.

Embodiment 2, as shown in fig. 1, the biopsy forceps of the embodiment of the present invention comprises a fastening protrusion 81 disposed at the front end of a puncturing part 8 and adapted to a fastening part 12, the puncturing part 8 is internally provided with a double-layer sleeve structure including an inner sleeve 82 and an outer sleeve 83, the inner sleeve 82 is connected to a negative pressure vent pipe 3, the outer sleeve 83 is fixedly connected to an operating part 5, the front end of the outer sleeve 83 is further provided with a sealing ring 17, the fastening protrusion 81 of the puncturing part 8 is adapted to the fastening part 12, the rotation clamp and the design between the two can tightly connect the puncturing part 8 and an extraction part 1 without loosening during the extraction process, thereby avoiding the occurrence of medical accidents in the patient after falling off and staying, the inner sleeve 82 is pushed by a pushing part 52 and drives a blade to complete the cutting action and cooperate with an injector to absorb living tissues, the cutting cushion is gentle and stable due to the stable movement of the cutting blade, the patient is not excessively painful, and the tip of the outer tube 83 is further provided with a ring of sealing rings 17, and the sealing rings 17 can seal the extraction portion 1 and the puncture portion 8.

Embodiment 3, as shown in fig. 1, compared with embodiment 2, the engaging portions 12 are knife-shaped, two in number are oppositely disposed at both sides of the end portion of the extracting portion 1, and the knife head portions of the knife-shaped are disposed in opposite directions, the engaging portions 12 in this embodiment are oppositely disposed, and the knife head portions in opposite directions can be more stable when connected with the engaging protrusions 12 on the puncturing portion 8.

In embodiment 4, as shown in fig. 2, the end of the extracting portion 1 is further provided with an end cap 14, and the graduation rings 13 arranged at equal intervals are arranged between the extracting hole 11 and the clamping portion 12, so that the doctor can accurately judge the depth of the extracting portion 1 and improve the precision of the puncture extraction, and the structure of the end cap 14 at the front end of the extracting portion 1 can enable the front end of the biopsy forceps to be subjected to mild resistance after entering the living tissue, thereby avoiding the formation of the puncture after the exertion of force, which causes the unexpected damage.

Embodiment 5, as shown in fig. 1, the front portion of the handheld portion 2 is provided with an arc-shaped holding portion 21 conforming to ergonomics, the two sides of the handheld portion 2 are symmetrically provided with inner concave cavities 22, the shape design of the handheld portion 2 is more attractive and comfortable, the holding power is uniform and anti-skidding, the design structure of the inner concave cavity 22 in the middle can greatly reduce the weight of the biopsy forceps, so that the user is more relaxed, and the extraction action can be smoothly completed.

Embodiment 6, as shown in fig. 3 to 4, the scale ring 13 is disposed at the front end of the extraction portion 1, and the perspective instrument is used to allow a user to determine the penetration distance of the extraction portion, or to determine the penetration distance through the scale ring 13 alone, and the scale ring 13 is disposed to allow the user to avoid an accident caused by excessive penetration when performing puncture extraction on a patient.

Example 7 as shown in fig. 3 to 4, the extraction unit 1 can be broken off from the sealing ring 17 after the extraction of the living tissue, and the living address is extracted from the cavity of the extraction unit 1 and placed in a vessel prepared in advance to complete the extraction step.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (8)

1. A bioptome, comprising: comprises an extraction part (1), a handheld part (2), an operation part (5), a puncture part (8), a negative pressure vent pipe (3) and an injector, wherein the extraction part (1) is connected with the puncture part (8) in a clamping way through a clamping part (12), the puncture part (8) is spliced with the operation part (5), one end of the operation part (5) far away from the puncture part (8) is connected with the negative pressure vent pipe (3), the handheld part (2) is fixedly connected below the operation part (5),

the front end of the extracting part (1) is provided with an extracting hole (11), a cutting blade (15) is arranged in the extracting hole (11), and two sides of the tail part of the cutting blade (15) are provided with sealing rings (17);

the operating part (5) comprises a pushing part (52), a return spring (51) and a button (53), and the button (53) is arranged at the bottom of the pushing part (52) and drives the pushing part (52) to move and controls the cutting blade (15) to perform cutting action;

one end of the negative pressure vent pipe (3) is fixedly connected with the operating part (5) through a screw fixing piece (32) in a threaded manner, and the other end of the negative pressure vent pipe is connected with the injector through a conduit.

2. The bioptome of claim 1, wherein: the utility model discloses a puncture department, including puncture portion (8) preceding tip be provided with joint portion (12) looks adaptation protruding (81), puncture portion (8) inside contains interior sleeve pipe (82) and outer tube (83) for double-layer sleeve pipe structure, interior sleeve pipe (82) with negative pressure breather pipe (3) link to each other, outer tube (83) with operation portion (5) rigid coupling, outer tube (83) front end still is provided with sealing ring (17).

3. The bioptome of claim 2, wherein: the clamping portions (12) are knife-shaped, the number of the clamping portions is two, the clamping portions are arranged on two sides of the end portion of the extracting portion (1) oppositely, and the knife head portions of the knife-shaped clamping portions are opposite in direction.

4. The bioptome of claim 1, wherein: extraction portion (1) tip still is provided with end cap (14), draw hole (11) with scale ring (13) that are provided with equidistant setting between joint portion (12), extraction portion (1) inside still be provided with right cutting blade

(15) A limiting blade travel position end point (16), wherein the extraction part (1) can be disconnected from a sealing ring (17) on the puncture part (8).

5. The bioptome of claim 1, wherein: one end of the negative pressure vent pipe (3) far away from the operation part (5) is also provided with a plurality of annular bulges (31).

6. The bioptome of any one of claims 1 to 5, wherein: the front part of the handheld part (2) is provided with an arc-shaped holding part (21) conforming to human engineering, and two sides of the handheld part (2) are symmetrically provided with inner concave cavities (22).

7. The bioptome of claim 6, wherein: the syringe port is adapted to fit a catheter.

8. The bioptome of claim 7, wherein: the material of sealing ring (17) is silica gel.

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