Biopsy puncture sampling device

Abstract

The utility model relates to the related technical field of medical instruments, in particular to a biopsy puncture sampling device which comprises a puncture needle, a puncture needle handle and a sampler, the sampler is composed of a stay wire protective sleeve, a clamping assembly and a handle assembly, the puncture needle is of a hollow round tube structure, the rear end of the puncture needle is matched with the puncture needle handle, and the handle assembly is connected with the handle assembly. The head of the front end of the puncture needle is of a zigzag structure, and scales are engraved on the outer wall of the puncture needle. The front end of the sampler designed in the utility model is in the form of the grasping forceps, and the grasping forceps can be controlled to be opened and closed after the sampler reaches a specified position, so that the designed structure can ensure that tissues can be taken out, the position of the taken pathological tissues is accurate, more tissue samples can be taken out, and higher actual sampling requirements of operations are met.

Description

Technical Field

[0001] The utility model relates to the technical field related to medical instruments, in particular to a biopsy puncture sampling device. Background Art

[0002] Spinal vertebral lesions, especially spinal tumors, are a disease with a high incidence rate in the population; spinal tumors refer to primary or metastatic tumors and some tumor-like lesions that occur in the bones and their accessory tissues of the spine; spinal tumor treatment often requires biopsy to facilitate pathological diagnosis of the lesions and formulate a comprehensive plan. The spine has a complex structure, is deep in the body, and is adjacent to blood vessels, spinal cord, and peripheral nerves, so it is difficult to obtain pathological tissue for examination.

[0003] In the prior art, biopsies of spinal lesions are usually obtained by forceps or biopsy needle aspiration. Forceps require a larger incision, and forceps biopsy can obtain sufficient specimens, but it is traumatic and may cause cutting edge implantation and metastasis, seriously affecting the patient's prognosis. Biopsy needle aspiration is difficult to aspirate during the actual puncture biopsy process, and the specimen volume is small, which cannot meet the needs of pathological examination and is prone to cause a series of problems such as missed diagnosis and misdiagnosis.

[0004] The existing technical solutions have the following two defects: the sampling success rate of biopsy needles used in surgery is low, the removal of tissue cannot be guaranteed, the location of the removed pathological tissue is inaccurate, and the amount of tissue removed is small, which will increase the doctor's operation time and cannot meet the higher actual surgical sampling needs. Utility Model Content

[0005] The utility model provides a biopsy device required for tissue sampling during spinal vertebral disease surgery, and provides a spinal vertebral disease tissue biopsy device that can ensure the removal of tissue, can ensure the accurate position of the removed pathological tissue, and can remove more tissue specimens, so that the doctor's operation difficulty is reduced and the sampling success rate is high.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A biopsy puncture sampling device includes a puncture needle, a puncture needle handle and a sampler. The sampler is composed of a pull wire protection sleeve, a clamping assembly and a handle assembly. The puncture needle is a hollow circular tube structure. The rear end of the puncture needle cooperates with the puncture needle handle, and the front end head of the puncture needle is configured to have a serrated structure.

[0008] As a further solution of the utility model: the outer wall of the puncture needle is engraved with scales, and the scales engraved on the outer wall can help doctors ensure the advancement depth.

[0009] As a further scheme of the utility model: the clamping assembly is composed of a first claw pliers, a second claw pliers, a first connecting rod, a second connecting rod, a wire pull block, a wire pull and a claw pliers fixing piece, the wire pull and the wire pull block are welded to each other into a whole, the tail end of the first connecting rod and the tail end of the second connecting rod respectively correspond to the upper and lower sides of the wire pull block and are rotatably hinged together through the opened third pin shaft hole, the first claw pliers and the second claw pliers cooperate to form a pair and the two are rotatably hinged together through the first pin shaft hole, the relative side surfaces of the first claw pliers and the second claw pliers are set to be serrated and sample retention grooves are opened in the inner cavities of both pliers, the first claw pliers is installed together with the head end of the second connecting rod through the second pin shaft hole opened at its tail end, the second claw pliers is installed together with the head end of the first connecting rod through the second pin shaft hole opened at its tail end, and a fourth pin shaft hole is opened correspondingly on the front end body of the claw pliers fixing piece.

[0010] As a further solution of the utility model: the handle assembly is composed of an operating handle, a movable pull ring, a fixed pull ring, a first fixed pull wire buckle and a second fixed pull wire buckle, the pull wire is arranged inside the pull wire protective cover, the front end of the pull wire cooperates with the pull wire block in the clamping assembly, the rear end of the pull wire cooperates with the first fixed pull wire buckle and the second fixed pull wire buckle in the handle assembly, and is fixed on the movable pull ring to ensure that it moves back and forth with the movable pull ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The front end of the sampler designed in the utility model is in the shape of a grasping forceps. When the sampler reaches the specified position, the grasping forceps can be controlled to open and close. Such a design structure can ensure the removal of tissue, can ensure the accurate position of the removed pathological tissue, and can remove more tissue specimens, thus meeting higher actual surgical sampling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic diagram of the structure of a biopsy puncture sampling device.

[0014] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0015] Figure 3 The figure is a schematic diagram of the specific structure of a clamping assembly in a biopsy puncture sampling device.

[0016] Figure 4 The figure is a schematic diagram of the specific structure of a handle assembly in a biopsy puncture sampling device.

[0017] In the figure: 1-puncture needle, 2-puncture needle handle, 3-sampler, 4-pull wire protection cover, 5-clamping assembly, 501-first claw pliers, 502-second claw pliers, 503-sample retention groove, 504-first connecting rod, 505-second connecting rod, 506-pull wire block, 507-pull wire, 508-claw pliers fixing part, 509-first pin shaft hole, 510-second pin shaft hole, 511-third pin shaft hole, 512-fourth pin shaft hole, 6-handle assembly, 601-first fixed pull wire buckle, 602-second fixed pull wire buckle, 603-operating handle, 604-movable pull ring, 605-fixed pull ring. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] See also Figure 1-4 A biopsy puncture sampling device includes a puncture needle 1, a puncture needle handle 2 and a sampler 3.

[0020] like Figure 1-2 As shown: the sampler 3 is composed of a pull wire protection sleeve 4, a clamping assembly 5 and a handle assembly 6, the puncture needle 1 is a hollow circular tube structure (Note: it is a solid circular tube structure when used with the sampler 3), the rear end of the puncture needle 1 cooperates with the puncture needle handle 2, and the front end head of the puncture needle 1 is configured to have a serrated structure. The serrated structure of the front end head design can help puncture the spinal vertebrae to reach the designated position smoothly. The outer wall of the puncture needle 1 is engraved with scales, and the scales engraved on the outer wall can help doctors ensure the advancement depth.

[0021] like Figure 3As shown: the clamping assembly 5 is composed of a first claw clamp 501, a second claw clamp 502, a first connecting rod 504, a second connecting rod 505, a wire pulling block 506, a wire pulling 507 and a claw clamp fixing member 508, the wire pulling 507 and the wire pulling block 506 are welded to each other as a whole, the tail end of the first connecting rod 504 and the tail end of the second connecting rod 505 correspond to the upper and lower sides of the wire pulling block 506 respectively and are rotatably hinged together through the opened third pin shaft hole 511, the first claw clamp 501 and the second claw clamp 502 cooperate to form a pair and the two are rotatably hinged together through the first pin shaft hole 509, the first The relative side surfaces of the claw pliers 501 and the second claw pliers 502 are set to be serrated and sample retention grooves 503 are opened in the inner cavity of both pliers bodies. The first claw pliers 501 is installed together with the head end of the second connecting rod 505 through the second pin shaft hole 510 opened at its tail end, and the second claw pliers 502 is installed together with the head end of the first connecting rod 504 through the second pin shaft hole 510 opened at its tail end. A fourth pin shaft hole 512 is correspondingly opened on the front end body of the claw pliers fixing part 508. In actual operation, the connecting rod is driven to rotate by moving the pull wire 507 back and forth to realize the opening and closing of the claw pliers.

[0022] like Figure 4 As shown: the handle assembly 6 is composed of an operating handle 603, a movable pull ring 604, a fixed pull ring 605, a first fixed pull wire buckle 601 and a second fixed pull wire buckle 602, the pull wire 507 is arranged inside the pull wire protection cover 4, the front end of the pull wire 507 cooperates with the pull wire block 506 in the clamping assembly 5, and the rear end of the pull wire 507 cooperates with the first fixed pull wire buckle 601 and the second fixed pull wire buckle 602 in the handle assembly 6, and is fixed on the movable pull ring 604 to ensure that it moves back and forth with the movable pull ring 604.

[0023] The working principle is as follows: during the actual operation, the doctor first determines the position during the operation, opens a channel at a position appropriate to the sampling position, and moves the puncture needle 1 along the channel. The scale on the puncture needle 1 can be observed to control the distance of advancement. After the puncture needle 1 is moved to the precise position, the puncture needle 1 is taken out, and the sampler 3 is placed in the channel. Before placing it, the movable pull ring 604 needs to be pulled backwards, which will drive the wire block 506 to move backwards, so that the angle between the first connecting rod 504 and the second connecting rod 505 becomes smaller, and at the same time drives the first claw clamp 501 and the second claw clamp 502 to form a closure, ensuring that the first claw clamp 501 and the second claw clamp 502 are closed to each other. State; after the sampler 3 moves forward to the specified position, the movable pull ring 604 is pushed forward. Similarly, the angle of the first connecting rod 504 and the second connecting rod 505 is increased, so that the first claw clamp 501 and the second claw clamp 502 are in an open state, and then the sampler 3 is pushed forward a short distance to allow tissue to be present in the sample retention groove 503 of the claw clamp. The movable pull ring 604 is pulled backward to close the first claw clamp 501 and the second claw clamp 502 to each other. During the closing process, the tissue will be cut and retained in the sample retention groove 503. After the operation is completed, the first claw clamp 501 and the second claw clamp 502 are kept in a closed state, and the sampler 3 is taken out along the original route to take out the tissue.

[0024] The front end of the sampler designed in the utility model is in the shape of a grasping forceps. When the sampler reaches the specified position, the grasping forceps can be controlled to open and close. Such a design structure can ensure the removal of tissue, can ensure the accurate position of the removed pathological tissue, and can remove more tissue specimens, thus meeting higher actual surgical sampling needs.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A biopsy puncture sampling device, comprising a puncture needle (1), a puncture needle handle (2) and a sampler (3), characterized in that: The sampler (3) is composed of a pull wire protective sleeve (4), a clamping assembly (5) and a handle assembly (6); the puncture needle (1) is a hollow circular tube structure; the rear end of the puncture needle (1) cooperates with the puncture needle handle (2); the front end head of the puncture needle (1) is configured to have a serrated structure.

2. A biopsy puncture sampling device according to claim 1, characterized in that: The outer wall of the puncture needle (1) is engraved with scales, which can help doctors ensure the advancement depth.

3. A biopsy puncture sampling device according to claim 1, characterized in that: The clamping assembly (5) is composed of a first claw clamp (501), a second claw clamp (502), a first connecting rod (504), a second connecting rod (505), a wire pulling block (506), a wire pulling (507) and a claw clamp fixing member (508). The wire pulling (507) and the wire pulling block (506) are welded to form a whole. The tail end of the first connecting rod (504) and the tail end of the second connecting rod (505) correspond to the upper and lower sides of the wire pulling block (506) respectively and are rotatably hinged together through an opened third pin shaft hole (511). The first claw clamp (501) and the second claw clamp (502) cooperate to form a pair and the two are connected by The first pin shaft hole (509) is rotatably hinged together, the relative side surfaces of the first claw clamp (501) and the second claw clamp (502) are set to be serrated and the inner cavity of both clamp bodies is provided with a sample retention groove (503), the first claw clamp (501) is installed together with the head end of the second connecting rod (505) through the second pin shaft hole (510) opened at its tail end, and the second claw clamp (502) is installed together with the head end of the first connecting rod (504) through the second pin shaft hole (510) opened at its tail end, and a fourth pin shaft hole (512) is correspondingly opened on the front end body of the claw clamp fixing part (508).

4. A biopsy puncture sampling device according to claim 3, characterized in that: The handle assembly (6) is composed of an operating handle (603), a movable pull ring (604), a fixed pull ring (605), a first fixed pull wire buckle (601) and a second fixed pull wire buckle (602); the pull wire (507) is arranged inside the pull wire protection cover (4); the front end of the pull wire (507) cooperates with the pull wire block (506) in the clamping assembly (5); the rear end of the pull wire (507) cooperates with the first fixed pull wire buckle (601) and the second fixed pull wire buckle (602) in the handle assembly (6), and is fixed on the movable pull ring (604) to ensure that it moves back and forth with the movable pull ring (604).

Images