CN217611179U

CN217611179U - Biopsy forceps head and biopsy forceps thereof

Info

Publication number: CN217611179U
Application number: CN202221551537.3U
Authority: CN
Inventors: 冯汉民; 耿科; 李百灵; 高峻
Original assignee: Guangzhou Winstar Medical Technology Co ltd
Current assignee: Shenzhen Aositian Medical Technology Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-10-21
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses a biopsy forceps head, which comprises a first forceps head and a second forceps head which are oppositely arranged, wherein the first forceps head can be separated or close to the second forceps head, so that the biopsy forceps head is opened or clamped, and the clamping function is realized; a first cutting surface is formed on the outer surface of the end part of the first pliers, and a second cutting surface is formed on the outer surface of the end part of the second pliers; when the first forceps head and the second forceps head are clamped tightly, the abutting part of the first blade surface and the second blade surface forms a first cutting part, and the first cutting part is used for cutting tissues. The utility model also discloses a biopsy forceps of including biopsy forceps binding clip. The utility model discloses can assist and open tissue shallow layer surface, make biopsy forceps lighter press from both sides and get the tissue of more depth.

Description

Biopsy forceps head and biopsy forceps thereof

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to biopsy forceps binding clip and biopsy forceps thereof.

Background

With the continuous development of medical technology, minimally invasive methods for detecting and treating diseases have become more and more popular. Biopsy forceps are an indispensable tool for endoscopic case specimens.

The head of biopsy forceps in the prior art is composed of a left head and a right head with flat cutting edges, and the tail end of the head is a smooth circular arc surface. When sampling of deeper tissues, the cutting of the superficial surface of the tissue needs to be carried out firstly, then the sampling is carried out, the operation is complex, and the cutting and the sampling need to be positioned twice, which is very troublesome, so that the sampling period is long, and the pain of a patient is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a biopsy forceps binding clip and biopsy forceps thereof, which can assist in cutting the superficial surface of tissue to enable the biopsy forceps to more easily clamp deeper tissue.

The utility model provides a first aspect of a biopsy forceps head, which comprises a first forceps head and a second forceps head which are arranged oppositely, wherein the first forceps head can be separated or close to the second forceps head, so that the biopsy forceps head is opened or clamped;

a first cutting surface is formed on the outer surface of the first tong head end, and a second cutting surface is formed on the outer surface of the second tong head end; when the first forceps head and the second forceps head are clamped, a first cutting portion is formed at the abutting position of the first blade face and the second blade face, and the first cutting portion is used for cutting tissues.

In the first aspect of the present invention, as a preferred embodiment, the first blade surface and the second blade surface are a plane, the first cutting portion is a sharp edge, and the two ends of the first cutting portion are formed with arc transition sections.

In the first aspect of the present invention, as a preferred embodiment, the first binding clip and the second binding clip are formed with a clamping chamber when clamped, and the clamping chamber is adapted to clamp and fix an article.

In the first aspect of the present invention, as a preferred embodiment, the clamping chamber includes a first clamping chamber and a second clamping chamber, the first clamping chamber and the second clamping chamber are formed with edge surfaces, and when the first clamping chamber and the second clamping chamber are clamped tightly, the first clamping chamber and the second clamping chamber abut against each other to form a second cutting portion.

The second purpose of the utility model is realized by adopting the following technical scheme:

a biopsy forceps, which comprises a forceps head of the biopsy forceps according to one purpose of the utility model, and also comprises a biopsy forceps driving rod;

a first connecting part is formed at one end of the first tong head, which is far away from the first cutting part, and a second connecting part is formed at one end of the second tong head, which is far away from the first cutting part; the first forceps head and the second forceps head are hinged to the first hinge part, and the opening or clamping of the forceps heads of the biopsy forceps is controlled through the first connecting part and the second connecting part;

the biopsy forceps driving rod is hinged to the second hinge part through two connecting pieces, and the other ends of the two connecting pieces are hinged to the first connecting part and the second connecting part respectively, so that the two connecting pieces, the first forceps head and the second forceps head form a four-bar mechanism.

The utility model discloses in the second aspect, as a preferred embodiment, still include the biopsy forceps stay tube, biopsy forceps stay tube cover is located the biopsy forceps actuating lever is outside, biopsy forceps bracing piece one end with first articulated portion is connected, and the other end forms the confession the port that the biopsy forceps actuating lever stretches out, the biopsy forceps actuating lever is kept away from the one end of biopsy forceps binding clip head is followed the port stretches out and forms the extension. In the second aspect of the present invention, as a preferred embodiment,

in the second aspect of the present invention, as a preferred embodiment, the present invention further comprises an operating handle, the operating handle comprises a first handle and a second handle, the first handle is connected to the biopsy forceps supporting tube, the second handle is connected to the extension portion, and the opening and closing of the first handle and the second handle are controlled to open and clamp the forceps head of the biopsy forceps.

In the second aspect of the present invention, as a preferred embodiment, a holding portion is formed at an end of the operating handle away from the biopsy forceps supporting tube, and the holding portion is provided with an anti-slip portion;

in the second aspect of the present invention, as a preferred embodiment, the present invention further includes a probe guide tube, a guide channel is formed inside the probe guide tube along the axis direction of the probe guide tube, the guide channel is suitable for the OCT probe to pass through and guide the OCT probe, the probe guide tube is parallel to the biopsy forceps supporting tube, and the probe guide tube is fixed to the operating handle.

In the second aspect of the present invention, as a preferred embodiment, the present invention further comprises a probe guide tube fixing structure, wherein the probe guide tube fixing structure comprises a first fixing member and a second fixing member, and a channel for passing the optical fiber probe is disposed in each of the first fixing member and the second fixing member;

the first fixing piece is connected with the probe guide tube, the first fixing piece is connected with the second fixing piece in a threaded matching mode, a rubber plug is arranged at the end of the thread of the second fixing piece, and a channel for the optical fiber probe to pass through is formed in the rubber plug.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the biopsy forceps head of the utility model clamps a tissue sample by opening the first forceps head and the second forceps head, and forms a first blade surface and a second blade surface respectively at the first forceps head and the second forceps head end, when the first forceps head and the second forceps head are clamped tightly, the first blade surface and the second blade surface are mutually supported, the supported part forms a first cutting part, and the tissue superficial layer is cut by the first cutting part; the first blade surface and the second blade surface can also perform auxiliary cutting on the tissue superficial layer; through so setting up, when the tissue in the face of the deep level, only need press from both sides tight first binding clip and second binding clip, from this assist the cutting through first cutting part to the tissue top layer, alright afterwards through open with press from both sides tight first binding clip and second binding clip to take a sample the tissue of deep level, target in place in one step, saved the trouble that uses multiple instrument to need location many times, save treatment time, simple structure convenient operation is swift.

2. The utility model discloses a biopsy forceps through setting up biopsy forceps actuating lever and biopsy forceps stay tube, realizes that remote operation biopsy forceps binding clip multiunit weaves and gets, is convenient for visit into inside the tissue, remote sampling. Through setting up operating handle, utilize operating handle to open and shut the push-and-pull of control biopsy forceps actuating lever for the biopsy forceps stay tube to open and press from both sides tightly the control biopsy forceps binding clip, the one-hand operation of being convenient for.

3. The utility model discloses a biopsy forceps supplies the OCT probe to pass and for its direction through setting up the probe guide tube to make the OCT probe stretch into near biopsy forceps binding clip through the probe guide tube, obtain the image through OCT optical scanning probe through inside optic fibre seal wire rotation scanning, survey superficial top layer cutting and the particular case of tissue sample collection, raise the efficiency greatly and the success rate of sampling. By arranging the probe catheter fixing structure, the optical fiber probe and the probe guide tube are further relatively fixed, the structure is simple, and the connection is stable and reliable.

Drawings

FIG. 1 is a schematic structural view of a forceps head of a biopsy forceps according to a first embodiment;

FIG. 2 is a schematic view of a clamping state of a forceps head of a biopsy forceps according to a first embodiment;

fig. 3 is a schematic structural view of a first plier head according to the first embodiment;

FIG. 4 is a schematic structural view of the first binding clip at another angle according to the first embodiment;

FIG. 5 is a schematic structural view of a biopsy forceps according to a second embodiment;

FIG. 6 is a partially enlarged view of the internal structure of the biopsy forceps according to the second embodiment;

FIG. 7 is a schematic structural view of another embodiment of a bioptome according to a second embodiment;

FIG. 8 is a schematic structural view of a bioptome according to a third embodiment;

FIG. 9 is a sectional view of a probe guide fixing structure according to a third embodiment;

FIG. 10 is a reference view showing a state in which the bioptome of the third embodiment is used;

in the figure: 100. a biopsy forceps head; 110. a first binding clip; 111. a first facet; 120. a second binding clip; 121. a second facet; 130. a first cutting part; 140. a gripping cavity; 141. a second cutting part; 150. a first hinge portion; 300. a biopsy forceps drive shaft; 310. a connecting member; 320. supporting a tube by a biopsy forceps; 330. a second hinge portion; 340. a protruding portion; 500. an operating handle; 510. a first handle; 520. a second handle; 700. a probe guide tube; 800. a probe catheter securing structure; 810. a first fixing member; 820. a second fixing member; 830. a rubber plug.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. 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 function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like refer to orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Referring to fig. 1 to 4, in one embodiment, a first forceps head 100 of a biopsy forceps includes a first forceps head 110 and a second forceps head 120 disposed opposite to each other, the first forceps head 110 can be separated from or close to the second forceps head 120, and the first forceps head 110 can be separated from or close to the second forceps head 120 to open or clamp the biopsy forceps head 100, so as to clamp the biopsy forceps head 100;

specifically, the outer surfaces of the end portions of the first forceps head 110 and the second forceps head 120 are respectively formed with a first edge surface 111 and a second edge surface 121, when the biopsy forceps head 100 is clamped, the first edge surface 111 and the second edge surface 121 abut against each other to form a first cutting portion 130, and the superficial layer of tissue is cut through the first cutting portion 130.

When the tissue faces deeper, the first forceps head 110 and the second forceps head 120 are clamped tightly, the first cutting part 130 is formed at the position where the first blade surface 111 and the second blade surface 121 abut against each other, the tissue superficial layer surface is cut through the assistance of the first cutting part 130, the deeper tissue can be clamped through the opening and clamping of the first forceps head 110 and the second forceps head 120, the tissue can be clamped in place in one step, the time for cutting by using other tools and positioning the cutting tool and the biopsy forceps for multiple times is saved, the sampling efficiency is greatly improved, and the operation is convenient and fast.

In the present embodiment, the first cutting portion 130 is a sharp edge, which facilitates cutting of superficial tissues; in other embodiments, the first cutting portion 130 may also be an arcuate edge or a sharp pointed end; in order to make the cutting process smoother, arc transition sections may be formed at both ends of the first cutting portion 130; in this embodiment, the first blade surface 111 and the second blade surface 121 are both planar, which is convenient for processing and saves cost; in other embodiments, the first edge surface 111 or/and the second edge surface 121 may also be an arc surface or a conical surface; of course, the first and second facets may also be used alone to aid in the cutting of the superficial layer of tissue, as will be appreciated by those skilled in the art.

Specifically, a clamping cavity 140 is formed inside the first forceps head 110 and the second forceps head 120 when the first forceps head and the second forceps head are clamped, and the clamping cavity 140 is suitable for clamping and fixing a tissue sample; the clamping cavity 140 includes a first clamping cavity disposed on the first tong head 110 and a second clamping cavity disposed on the second tong head 120, and blade surfaces are respectively formed at the contact positions of the peripheries of the first clamping cavity and the second clamping cavity; when the first tong head 110 and the second tong head 120 are clamped, the blade surfaces of the first clamping cavity and the second clamping cavity are mutually abutted to form a second cutting part 141;

press from both sides the chamber 140 and hold the tissue sample through setting up to press from both sides, avoid pressing from both sides the dropping of getting in-process tissue sample, through setting up second cutting portion 141, will press from both sides the tissue sample of getting chamber 140 inside and cut the separation with human tissue, avoid pressing from both sides the in-process and drag the damage tissue.

Example two

The second embodiment is an improvement based on the first embodiment.

Referring to fig. 5-7, the second embodiment provides a biopsy forceps, including the forceps head 100, the driving rod 300, and the supporting tube 320.

A first connecting part is formed at one end of the first binding clip 110 far away from the first cutting part 130, and a second connecting part is formed at one end of the second binding clip 120 far away from the first cutting part 130; the first forceps head 110 and the second forceps head 120 are hinged to the first hinge 150, and the opening or clamping of the biopsy forceps head 100 is controlled through the first connecting portion and the second connecting portion.

One end of the biopsy forceps driving rod 300 is hinged to the second hinge portion 330 via two connecting members 310, and the other end of the two connecting members 310 is hinged to the first connecting portion and the second connecting portion, respectively, so that the two connecting members 310, the first forceps head 110 and the second forceps head 120 form a four-bar linkage.

The biopsy forceps support tube 320 is sleeved outside the biopsy forceps drive rod 300, one end of the biopsy forceps support tube 320 is fixed to the first hinge portion 150, the other end of the biopsy forceps support tube forms a port for the biopsy forceps drive rod 300 to extend out, and one end of the biopsy forceps drive rod 300, which is far away from the second hinge portion 330, extends out of the port to form an extending portion 340; the biopsy forceps drive lever 300 is pushed and pulled by the extension 340 to move the second hinge 330 closer to or away from the first hinge 150, thereby controlling the opening or grasping of the biopsy forceps head 100.

Through setting up biopsy forceps actuating lever 300, realize remote control biopsy forceps binding clip 100, be convenient for make biopsy forceps binding clip 100 get into human inside and carry out the tissue sampling, simple structure, convenient operation, reliable and stable.

The bioptome drive shaft 300 and/or bioptome support tube 320 may be made of flexible tubing to facilitate passage through more tortuous pathways; in this embodiment, the bioptome drive lever 300 and/or the bioptome support tube 320 are made of a rigid material, thereby facilitating application of force when performing a cutting operation of a superficial tissue surface using the first cutting portion 130.

In some preferred embodiments, bioptome further includes a handle 500, the handle 500 including a first handle 510 and a second handle 520; the first handle 510 is connected with the biopsy forceps support tube 320, the second handle 520 is connected with the extension part 340, the opening and the clamping of the biopsy forceps head 100 are controlled through the opening and closing of the first handle 510 and the second handle 520, the operation can be carried out by one hand, and the operation is convenient and fast.

A holding part is formed at one end of the operating handle 500 far away from the biopsy forceps supporting tube 320, and the holding part is matched with fingers and is held by hands when in use, so that the biopsy forceps supporting tube is convenient and practical; the holding part can be provided with an anti-slip part to prevent the hand from slipping in the operation process; the gripping part can also be provided with a soft cushion, so that the gripping part is further antiskid and comfortable to grip.

EXAMPLE III

The third embodiment is an improvement on the second embodiment.

Referring to fig. 8-10, a biopsy forceps is provided in a third embodiment, which further includes a probe guide tube 700 based on the second embodiment.

The probe guide tube 700 has a guide channel formed therein along its axial direction, the guide channel being adapted to allow the OCT probe to pass therethrough and guide the probe, the probe guide tube 700 being disposed in parallel with the bioptome support tube 320, the probe guide tube 700 being fixed to the operating handle 500.

By arranging the probe guide tube 700 for the OCT probe to pass through and guide the OCT probe, the OCT probe extends into the vicinity of the forceps head 100 of the biopsy forceps through the probe guide tube 700, and the OCT optical scanning probe obtains images through the rotation scanning of the internal optical fiber guide wire, so that the specific conditions of superficial surface cutting and tissue sample collection are observed, and the efficiency and the sampling success rate are greatly improved.

In some preferred embodiments, a probe catheter fixing structure 800 is further included, and the probe catheter fixing structure 800 includes a first fixing member 810 and a second fixing member 820; the first fixing member 810 and the second fixing member 820 are provided therein with a channel for the fiber probe to pass through.

The first fixing member 810 is connected with one end of the probe guide tube 700 far away from the biopsy forceps head 100, the first fixing member 810 is connected with the second fixing member 820 in a threaded fit manner, a rubber plug 830 is arranged at the threaded tail end of the second fixing member 820, and a channel for the fiber probe to pass through is formed in the rubber plug 830.

When the OCT probe is used, the OCT probe enters the probe guide tube 700 through the probe catheter fixing structure 800, the rubber plug 830 is compressed by screwing the second fixing piece 820, and the probe rubber tube is clamped by compressing the rubber plug 830, so that the optical fiber probe and the probe guide tube 700 are relatively fixed.

The first fixing member 810 and the second fixing member 820 may be connected by other connection mechanisms with locking function, such as snap connection, push-lock connection, interference fit connection, etc., besides the threaded connection in the present embodiment, which can be understood by those skilled in the art.

While only certain features and embodiments of the application have been illustrated and described, many modifications and changes may occur to those skilled in the art (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the scope and spirit of the invention in the claims.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. The biopsy forceps head is characterized by comprising a first forceps head and a second forceps head which are arranged oppositely, wherein the first forceps head can be separated or close to the second forceps head, so that the biopsy forceps head is opened or clamped, and the clamping function is realized;

a first cutting surface is formed on the outer surface of the first tong head end, and a second cutting surface is formed on the outer surface of the second tong head end; when the first forceps head and the second forceps head are clamped, a first cutting portion is formed at the position where the first blade face and the second blade face abut against each other, and the first cutting portion is used for cutting tissues.

2. The biopsy forceps head of claim 1, wherein the first edge surface and the second edge surface are both planar, the first cutting portion is a sharp edge, and the first cutting portion has circular arc transitions formed at both ends.

3. The biopsy forceps head of claim 1, wherein the first forceps head and the second forceps head are clamped together to form a clamping cavity therein, and the clamping cavity is adapted to clamp and secure an object.

4. The biopsy forceps head of claim 3, wherein the grasping cavities comprise a first grasping cavity disposed on the first forceps head and a second grasping cavity disposed on the second forceps head, and edge surfaces are respectively formed at the contact positions of the peripheries of the first grasping cavity and the second grasping cavity, and when the first forceps head and the second forceps head are clamped, the edge surfaces of the first grasping cavity and the second grasping cavity abut against each other to form a second cutting portion.

5. Biopsy forceps, comprising a forceps head according to any one of claims 1-4, and further comprising a biopsy forceps drive lever;

a first connecting part is formed at one end of the first binding clip far away from the first cutting part, and a second connecting part is formed at one end of the second binding clip far away from the first cutting part; the first forceps head and the second forceps head are hinged to the first hinge part, and the opening or clamping of the forceps heads of the biopsy forceps is controlled through the first connecting part and the second connecting part;

the biopsy forceps driving rod is hinged with two connecting pieces on a second hinge part, and the other ends of the two connecting pieces are respectively hinged with the first connecting part and the second connecting part, so that the two connecting pieces, the first forceps head and the second forceps head form a four-bar mechanism.

6. The bioptome of claim 5, further comprising a bioptome support tube, wherein the bioptome support tube is sleeved outside the bioptome drive rod, one end of the bioptome support rod is connected to the first hinge portion, the other end of the bioptome support rod forms a port through which the bioptome drive rod extends, and the end of the bioptome drive rod, which is far away from the bioptome head, extends from the port to form an extension.

7. The biopsy forceps of claim 6, further comprising an operating handle, wherein the operating handle comprises a first handle and a second handle, the first handle is connected with the biopsy forceps support tube, the second handle is connected with the extension portion, and opening and clamping of the biopsy forceps head are controlled by opening and closing of the first handle and the second handle.

8. The biopsy forceps of claim 7, wherein the operating handle is formed with a grip at an end remote from the biopsy forceps support tube, the grip being provided with a non-slip portion.

9. The biopsy forceps of claim 7, further comprising a probe guide tube, wherein a guide channel is formed inside the probe guide tube along an axial direction of the probe guide tube, the guide channel is suitable for passing and guiding the OCT probe, and the probe guide tube is fixed with the operation handle.

10. The biopsy forceps of claim 9, further comprising a probe catheter securing structure, wherein the probe catheter securing structure comprises a first securing member and a second securing member, and a channel for the fiber optic probe to pass through is disposed in each of the first securing member and the second securing member;

one end of the first fixing piece is connected with the probe guide tube, the other end of the first fixing piece is connected with the second fixing piece in a threaded fit mode, a rubber plug is arranged at the tail end of the second fixing piece thread, and a channel for the optical fiber probe to pass through is formed in the rubber plug.