CN218651873U - Biopsy sampling device - Google Patents

Abstract

The utility model discloses a biopsy sampling device, locate the sample main part with negative pressure pipe and cutting piece activity, when needs are organized the operation to the focus, the focus tissue of suction part through the negative pressure pipe, the cutting piece removes in order to close the sample opening in the sample main part, the realization is separated the tissue, the cutting piece can be operated repeatedly, the incessant acquisition of the fragmentary sample accessible negative pressure pipe of collection, great tissue sample can be along with the negative pressure pipe together taken out the sample main part outside, the sampling time has been shortened, the application range of device has been enlarged.

Description

Biopsy sampling device

Technical Field

The utility model relates to a biopsy sampling technical field, concretely relates to biopsy sampling device.

Background

Tumors are diseases seriously harming human health and life, and because some tumors do not have typical imaging characteristics, diagnosis is difficult, and correct diagnosis needs to be performed by combining clinic diagnosis, pathology diagnosis and the like, wherein needle biopsy is a main way for obtaining pathological diagnosis. Endoscopy is currently widely used in the clinic as an auxiliary diagnostic method. The biopsy sampling device is a special surgical instrument for puncture biopsy, enters a patient body through a channel of an endoscope to clamp tissues of a lesion part, and then carries out pathological analysis on the clamped tissues to confirm diseases.

The existing biopsy sampling device generally includes a biopsy needle, a biopsy forceps, etc., and the biopsy forceps are taken as an example, the position of the endoscope is adjusted, the biopsy forceps are used to cut a part of the lesion tissue at a time, and each operation needs to be taken out to obtain the collected sample. For example, utility model CN201820287517.7 discloses a soft ureteroscope biopsy forceps, which comprises a soft tube, a handle, a push rod and a front end biopsy forceps; the flexible pipeline is arranged on the right side of the handle; the center of the flexible pipeline is provided with an axial round hole, and a slide way is arranged in the round hole; the push rod is arranged on the slideway and moves along the axial direction of the slideway; the front end biopsy forceps are arranged at the right end of the push rod and comprise a puncture needle and hook forceps; the needle includes a needle head and a biopsy tissue reservoir, with the needle head being to the right of the biopsy tissue reservoir. The biopsy forceps have the advantages of simple instrument manufacturing process, direct-view operation, good safety and the like, but the biopsy forceps are required to be taken out for each biopsy, only one sample can be collected, the size of the sample is limited by the size of a biopsy tissue storage tank, partial tissues can be cut incompletely, and the tumor cells can be scattered and planted; and the mode of taking the tissue by the hook forceps can cause great damage to the integrity of the sample tissue, the cutting edge of the residual tissue can be torn and broken frequently, the visual field of subsequent operation is influenced, repeated operation is needed for biopsy sampling of larger focal tissues or multiple focal tissues, and the working efficiency is low.

For solving the problem that biopsy forceps need to take out at every time of biopsy sampling, make it carry out continuous biopsy, for example, utility model patent CN201922084987.0 discloses a scope biopsy forceps of polylith pathological tissue can be got to clamp, including pincers body and pincers tooth, pincers body and pipe are linked together, pincers body both sides all are provided with the mount pad, and every pincers tooth all is articulated with the mount pad through the articulated elements, and every articulated elements all links to each other with acting as go-between to act as go-between runs through pincers body and pipe in proper order, pincers body upper end still is provided with the opening and the junction of opening and pincers body is provided with the filter screen. Pulling the forceps teeth through the pull wire, enabling the forceps teeth to be closed, namely clamping a piece of pathological tissue, then pulling the pull wire to enable the forceps teeth to be opened, enabling the pathological tissue to fall into the filter screen at the opening, achieving the effect that one-time operation can be conducted to clamp a plurality of samples, and improving the working efficiency. However, the clamped sample needs to be sucked onto the filter screen through the catheter, so that the inner diameter of the catheter needs to be set to be larger, otherwise, sample tissues can be crushed and deformed, pathological diagnosis is affected, and the method is not suitable for operating environments of some endoscopes (such as ureteroscopes, cystoscopes and the like) with narrow channels.

The purpose of the utility model is to provide a biopsy sampling device to at least one among the above technical problem of solution.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention provides a biopsy sampling device to address the deficiencies of the prior art.

The utility model discloses mainly realize through following technical scheme:

a biopsy sampling device, comprising:

a housing having an instrument channel extending from a first end of the housing to a second end of the housing;

the sampling main body is arranged in the instrument channel in a matching and penetrating mode and is provided with an accommodating space, and a sampling opening is formed in the accommodating space;

the negative pressure pipe is movably arranged on the sampling main body and is provided with a suction part correspondingly positioned at the second end, the suction part is arranged in the accommodating space, and a suction port positioned beside the sampling opening is arranged on the suction part;

and the cutting blade is movably arranged on the sampling opening so as to open or close the sampling opening.

Locate the sample main part with negative pressure pipe and cutting piece activity, when needs are organized the operation to the focus, the focus tissue of suction part through the suction port suction of negative pressure pipe, the cutting piece moves in order to close the sample opening in the sample main part, realize separating the tissue, make sample tissue drop to the accommodation space in, the cutting piece can be operated repeatedly, the incessant acquisition of the fragmentary sample accessible negative pressure pipe of collection, great tissue sample can be along with the negative pressure pipe together outside the sample main part of being taken out, need not to take out whole biopsy sampling device when adsorbing great tissue, only need insert the negative pressure pipe again can, the sampling time has been shortened, the application range of device has been enlarged.

Further, the cutting device also comprises a driving piece arranged on the cutting blade.

Further, the cutting blade is mounted on the negative pressure pipe.

Further, be equipped with the guide way that is close to the sample opening setting on the sample main part, cutting piece slidable mounting is on the guide way.

Further, the sample main part includes hollow sleeve pipe, hollow sleeve pipe's one end is equipped with the shrouding, and the other end is equipped with and opens the mouth portion, one side of hollow sleeve pipe sets up the opening to at least, the second end forms and cuts a cutting piece complex sample opening.

Further, the opening extends from the closing plate to the opening portion to form a sampling opening at the second end and a collecting opening at the first end.

Furthermore, a positioning seat is arranged on the cutting blade, and the negative pressure tube is installed on the positioning seat.

Further, the suction port is a bell mouth.

Further, a pressure regulator is mounted on the negative pressure pipe.

Further, a gap exists between the cutting blade and the sealing plate.

Compared with the prior art the utility model discloses technical scheme's beneficial effect does:

the utility model provides a biopsy sampling device, adopt the cutting piece to cut, the sample surface of cutting is more level and smooth, can not cause the sight to follow-up operation to disturb, seal the sample opening through the cutting piece after the cutting, guarantee the integrality of sample, prevent that the negative pressure pipe from transporting the process of sample, the sample piece drops from the sample opening part, cause the broadcast planting of tumor cell; for larger focus tissues, sample tissues do not need to pass through a negative pressure tube, so that the requirement on the inner diameter of the negative pressure tube is reduced, the application range of the device is expanded, and the device is particularly suitable for biopsy operation in the use environments of ureteroscopy, cystoscope and the like; for a plurality of fragmentary focus tissues, the sample is continuously sucked into the outside of the body from the negative pressure pipe by adjusting the cutting blade, the biopsy sampling device is not required to be taken out, the sampling time is shortened, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram (one) of embodiment 1 of a biopsy sampling device provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the biopsy sampling device of FIG. 1 illustrating the status of the lesion tissue after cutting;

FIG. 3 is a schematic structural view of the cutting blade of FIG. 1;

fig. 4 is a schematic structural diagram of embodiment 2 of a biopsy sampling device provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of the negative pressure tube and the cutting blade in fig. 4.

The reference numbers are as follows:

1. the device comprises a shell, a 1a, an instrument channel, a 1b, a first end, a 1c, a second end, a 2, a sampling main body, a 2a, an accommodating space, a 2b, a sampling opening, a 2c, a guide groove, a 2d, a collecting opening, a 21, a hollow sleeve, a 21a, an open part, a 22, a sealing plate, a 3, a negative pressure pipe, a 31, a suction part, a 31a, a suction port, a 4, a cutting blade, a 5, a driving part, a 6, a positioning seat, a 7 and lesion tissues.

Detailed Description

In order to better understand the invention for those skilled in the art and to define the claimed scope more clearly, the invention will be described in detail below with respect to certain specific embodiments of the invention. It should be noted that the following description is only a few examples of the present invention, and the specific and direct descriptions of the related structures are only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of the present invention. Conventional alternatives and substitutions made by those skilled in the art in light of the teachings of the present disclosure should be considered as within the scope of the present disclosure.

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

For the larger lesion tissues 7, in order to avoid the influence of the limited inner diameter of the negative pressure tube 3 on the application range, the tissue cannot be directly extracted from the negative pressure tube 3, and the vacuum negative pressure adsorption effect of the negative pressure tube 3 is selected to suck the sample tissues and take the sample tissues out of the body.

Referring to fig. 1, the biopsy sampling device provided by the present invention is particularly suitable for use in the operating environment of cystoscope and ureteroscope (for ureteroscope, the diameter of the lesion tissue 7 is less than or equal to 1.5 mm).

A biopsy sampling device comprising: the device comprises a shell 1, a sampling main body 2, a negative pressure pipe 3, a cutting blade 4 and a driving piece 5. The housing 1 has an instrument channel 1a, the instrument channel 1a extends from a first end 1b of the housing 1 to a second end 1c of the housing 1, the sampling body 2 is disposed through the instrument channel 1a in a matching manner and has an accommodating space 2a, and the accommodating space 2a is provided with a sampling opening 2b.

The negative pressure tube 3 is movably arranged on the sampling main body 2, the sampling operation can be continuously carried out, the sample tissue can be smoothly taken out by pumping out the negative pressure tube 3, the whole biopsy sampling device does not need to be withdrawn and entered for the second time, for the larger focal tissue 7, the excision operation of the focal tissue can be continuously carried out only by reinserting the negative pressure tube 3, the use burden of a patient can not be increased, the operation stability is improved, and the operation time is shortened.

The negative pressure tube 3 is provided with a suction part 31 correspondingly positioned at the second end 1c, the suction part 31 is arranged in the accommodating space 2a, the suction part 31 is provided with a suction port 31a positioned beside the sampling opening 2b, the negative pressure tube 3 is provided with a pressure regulator to control the negative pressure value, namely the vacuum degree, the pressure regulator is preferably a throttle valve, the vacuum degree in the negative pressure tube 3 is set in a grading way, different sample tissues (distinguished according to parameters such as sample size, sample tissue position and the like) can be obtained according to needs, the proper vacuum degree is selected, the negative pressure suction efficiency is balanced, and the integrity of the lesion tissue 7 is ensured. Wherein, the suction part 31 is positioned at one end of the negative pressure tube 3 for sucking the lesion tissue.

Cutting blade 4 movable mounting is on sample opening 2b to open or close sample opening 2b, driving piece 5 is installed on cutting blade 4, is convenient for carry out manual regulation to cutting blade 4 in vitro.

In this embodiment, the shape of the cutting edge of the cutting blade 4 is not limited as long as the cutting operation can be realized, and the cutting edge is preferably arranged obliquely, so that the focal tissue 7 can be conveniently and rapidly cut off; as shown in fig. 3, the driving member 5 is rod-shaped or handle-shaped, and is detachably connected to the cutting blade 4, so that the cutting blade 4 can be conveniently replaced, specifically, by using a form of pin connection, snap connection, or the like.

The positions of the negative pressure tube 3 and the cutting blade 4 can be respectively and independently adjusted, the position of the negative pressure tube 3 in the accommodating space 2a can be seen relative to the sampling opening 2b under an endoscope by adjusting the position of the negative pressure tube 3, and a corresponding negative pressure value is adjusted (adjusted according to the size of a sample tissue to be extracted), so that the adsorption operation is convenient; by adjusting the position of the cutting blade 4 to adjust the size of the sampling opening 2b, different sizes of sample tissues to be extracted are obtained.

Preferably, the sampling body 2 includes a hollow sleeve 21, one end of the hollow sleeve 21 is provided with a closing plate 22, the other end is provided with an opening portion 21a, and one side of the hollow sleeve 21 is provided with an opening so that at least the second end 1c forms a sampling opening 2b to be engaged with the cutting blade 4. The sample tissue is adsorbed through the negative pressure tube 3, the cutting piece 4 moves to the sampling opening 2b covering the second end 1c, so that the accommodating space 2a of the sampling main body 2 forms a relatively closed space in vivo, the cut sample tissue is smoothly conveyed out of the body through the negative pressure tube 3, and meanwhile, the negative pressure cannot be damaged by the tissue which is not cut in the body.

In this embodiment, the suction port 31a is disposed opposite to the sealing plate 22, so as to facilitate sucking more tissues into the accommodating space 2a and prevent the sample tissues cut by the cutting blade 4 from being too small. Hollow sleeve 21 and shrouding 22 integrated into one piece, guide way 2c are located between opening and the shrouding 22 for there is the space between shrouding 22 and the cutting piece 4, avoids haring the edge of a knife, can observe the position of cutting piece 4 under the scope, avoids the mistake to damage the tissue. The opening extends from the closing plate 22 to the opening portion 21a to form a sampling opening 2b at the second end 1c and a collecting opening 2d at the first end 1b, the sampling opening 2b and the collecting opening 2d are separated by the cutting blade 4, and when the cutting blade 4 closes the sampling opening 2b, only the collecting opening 2d of the hollow sleeve 21 is in an open state.

Sample main part 2's design has reduced sample main part 2's volume, and driving piece 5, negative pressure pipe 3 stretch out from open portion 21a simultaneously, take out negative pressure pipe 3 and sample tissue from collecting opening 2d more easily, further guarantee the integrality of sample tissue, have reduced the operation degree of difficulty. Wherein, accommodation space 2a is the storage tank, and hollow sleeve 21, storage tank and shrouding 22's cross-section is close half-circular arc, guarantees sample opening 2 b's width, reduces the volume that hollow sleeve 21 occupy, and the focus tissue 7 is held to the negative pressure pipe 3 more stable of being convenient for, makes things convenient for cutting piece 4 to cut.

Wherein, suction port 31a is located the outer tip of negative pressure pipe 3, and negative pressure pipe 3 can be the cylinder tubulose, and the terminal surface of suction port 31a is the horn mouth shape, and the inner wall of negative pressure pipe 3 is smooth not stained with, and for the removal of making things convenient for negative pressure pipe 3, the external diameter of negative pressure pipe 3 is less than the radius of accommodation space 2 a. The shape of the negative pressure tube 3 is not limited to the above structure, and may be adapted to the shape of the accommodating space 2a, so as to utilize the inner space of the accommodating space 2a to the maximum extent and improve the suction efficiency of the negative pressure tube 3.

In this embodiment, be equipped with the guide way 2c that is close to sample opening 2b and sets up on sample main part 2, preferred setting is on sample opening 2 b's double-phase inside wall, cutting piece 4 slidable mounting is on guide way 2c, make its length direction along sample main part 2 remove, guide way 2c extends to shrouding 22 from uncovered portion 21a, conveniently install cutting piece 4, lead to its moving direction simultaneously, the mistake is organized into the damage to the group when avoiding operating, cutting piece 4 seals sample opening 2b after the cutting finishes, avoid the sample piece to drop from sample opening 2b, the safety of assurance device use, reliability.

As shown in fig. 2, in use, the biopsy sampling device is close to the lesion tissue 7, the driving handle is held at the first end 1b of the housing 1 to move towards the outside of the instrument channel 1a, the cutting blade 4 is adjusted to open the sampling opening 2b to a proper length (determined according to the size of the sample tissue to be cut), the containing groove at the sampling opening 2b covers part of the lesion tissue 7, the driving handle is held at the first end 1b of the housing 1 to move towards the inside of the instrument channel 1a, the cutting blade 4 is adjusted to cut the lesion tissue 7 at the sampling opening 2b, then the sampling opening 2b is closed, the sample tissue is collected at the collection opening 2d, if necessary, the negative pressure tube 3 is inserted into the hollow sleeve 21 to sample again, and the housing 1 is taken out after sampling is finished.

Example 2

To a plurality of fragmentary focus tissues 7, can directly extract through negative pressure pipe 3, as shown in fig. 4, 5, the utility model discloses still provide another biopsy sampling device, cutting piece 4 is installed on negative pressure pipe 3. Cutting blade 4 can wholly remove along the length direction of sample main part 2 with negative pressure tube 3, and negative pressure tube 3 is the cylinder tubulose, and the terminal surface of suction opening 31a is horn mouth shape, and the inner wall of negative pressure tube 3 is smooth not stained with, adjusts the negative pressure value of negative pressure tube 3 (theoretically should be less than the negative pressure value of embodiment 1, adjusts according to the size of the sample tissue that needs to draw), is convenient for carry the sample tissue under negative pressure state.

On the biopsy sampling aiming at the fragmentary focus tissues, the operation can be continuously performed only by operating the stroke of the cutting blade 4 without taking out the negative pressure tube 3 until enough sample tissues are collected, so that the operation time can be effectively shortened, and the operation efficiency and the success rate of pathological diagnosis are improved.

Preferably, the cutting blade 4 is provided with a positioning seat 6, and the negative pressure tube 3 is installed on the positioning seat 6.

In this embodiment, the positioning seat 6 is disposed on the back side of the cutting blade 3, the positioning seat 6 is provided with a clamping groove, and the negative pressure tube 3 is welded on the clamping groove.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A biopsy sampling device, comprising:

a housing (1) having an instrument channel (1 a), the instrument channel (1 a) extending from a first end (1 b) of the housing (1) to a second end (1 c) of the housing (1);

the sampling main body (2) is arranged in the instrument channel (1 a) in a penetrating mode in a matching mode and is provided with an accommodating space (2 a), and a sampling opening (2 b) is formed in the accommodating space (2 a);

the negative pressure pipe (3) is movably arranged on the sampling main body (2) and is provided with a suction part (31) correspondingly positioned at the second end (1 c), the suction part (31) is arranged in the accommodating space (2 a), and a suction port (31 a) positioned at the side of the sampling opening (2 b) is arranged on the suction part (31);

and the cutting blade (4) is movably arranged on the sampling opening (2 b) so as to open or close the sampling opening (2 b).

2. The biopsy sampling device of claim 1, wherein: the cutting device also comprises a driving piece (5) arranged on the cutting blade (4).

3. The biopsy sampling device of claim 1, wherein: the cutting blade (4) is arranged on the negative pressure pipe (3).

4. The biopsy sampling device defined in any one of claims 1-3, wherein: the sampling main body (2) is provided with a guide groove (2 c) which is close to the sampling opening (2 b), and the cutting blade (4) is slidably arranged on the guide groove (2 c).

5. The biopsy sampling device of claim 4, wherein: the sampling main body (2) comprises a hollow sleeve (21), one end of the hollow sleeve (21) is provided with a sealing plate (22), the other end of the hollow sleeve is provided with an open part (21 a), one side of the hollow sleeve (21) is provided with an opening, so that the second end (1 c) is less than a sampling opening (2 b) matched with the cutting blade (4).

6. The biopsy sampling device of claim 5, wherein: the opening extends from the closing plate (22) to an opening (21 a) to form a sampling opening (2 b) at the second end (1 c) and a collection opening (2 d) at the first end (1 b).

7. The biopsy sampling device of claim 3, wherein: the cutting blade (4) is provided with a positioning seat (6), and the negative pressure tube (3) is arranged on the positioning seat (6).

8. The biopsy sampling device of any one of claims 2, 3, and 7, wherein: the suction opening (31 a) is a bell mouth.

9. The biopsy sampling device of claim 1, wherein: and a pressure regulator is arranged on the negative pressure pipe (3).

10. The biopsy sampling device of claim 5, wherein: and a gap is reserved between the cutting blade (4) and the sealing plate (22).

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