CN219661772U - Biopsy puncture device - Google Patents

Abstract

The utility model discloses a biopsy puncture device, comprising: the bottom of the bottom shell is provided with a positioning cavity, the left side and the right side of the bottom end of the inner cavity of the bottom shell are provided with clamping grooves communicated with the inner cavity of the positioning cavity, the left side and the right side of the bottom end of the inner cavity of the bottom shell are provided with sliding grooves along the front-back direction, and four corners of the top end of the bottom shell are provided with bolt holes; the front end and the rear end of the guide rod are respectively arranged at the front side and the rear side of the inner cavity of the chute; the positioning plate is arranged at the front side of the bottom end of the inner cavity of the bottom shell; the fixing mechanism is arranged in the inner cavity of the positioning cavity; the firing mechanism is arranged in the inner cavity of the bottom shell; the rear end of the sleeve is embedded in the inner cavity of the bottom shell, the rear end of the sleeve is inserted in the inner cavity of the positioning plate in a matching mode, and the front end of the sleeve extends out of the inner cavity of the bottom shell. After biopsy sampling is carried out, the device can replace the sampling needle, so that the cost of biopsy puncture sampling can be reduced, economic loss is avoided, and the device is convenient to use.

Description

Biopsy puncture device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a biopsy puncture device.

Background

The method is a disease seriously harming human health and life, the incidence rate is gradually increased in recent years, the incidence age is gradually reduced, early detection, correct diagnosis and timely treatment have important influence on prognosis, along with the continuous improvement of inspection means and methods, the correct rate of diagnosis is gradually improved, but most of tumors do not have typical imaging characteristics, the diagnosis is difficult, the correct diagnosis needs three combinations of clinic, image and pathology, wherein the selection of a treatment scheme plays a key role, and the puncture biopsy is a main way for acquiring pathological diagnosis;

in order to facilitate puncture sampling, the utility model patent discloses a biopsy device for safe puncture, the patent number is: 202020114723.5, and specifically discloses a method comprising: the needle comprises a needle core, a needle tube, a handle, a needle tube seat, a firing switch and a safety device; the safety device comprises a safety part and at least two locking gears arranged on the firing post or the firing switch, the safety part is movably arranged on the handle and is provided with at least two stop positions, when the safety part is positioned at one stop position, the safety part is matched with one locking gear to limit the firing switch to move forwards and backwards, and when the safety part is positioned at the other stop position, the safety part is released from the limiting fit with the locking gear, and the firing switch can move forwards. The relative positions of the needle core and the needle tube can be locked after the product is wound, the needle core and the needle tube can not move relatively after being locked, the needle core can not be pushed by mistake, and the situation of mistaken firing can not occur, so that the puncture is safer and more accurate;

the traditional biopsy puncture device can be used for effectively performing biopsy puncture sampling, but because the puncture needle is a disposable object, the puncture needle and the firing gun of the traditional biopsy puncture device are of an integrated structure, and then after the biopsy puncture sampling is finished, the firing gun needs to be uniformly recycled with the puncture needle, so that the cost of biopsy puncture sampling is greatly increased, economic loss is caused, and the biopsy puncture device is inconvenient to use.

Disclosure of Invention

The utility model aims to provide a biopsy puncture device which at least solves the problem that puncture sampling cost is high in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a biopsy punch device, comprising: the bottom of the bottom shell is provided with a positioning cavity, the left side and the right side of the bottom end of the inner cavity of the bottom shell are provided with clamping grooves communicated with the inner cavity of the positioning cavity, the left side and the right side of the bottom end of the inner cavity of the bottom shell are provided with sliding grooves along the front-back direction, and four corners of the top end of the bottom shell are provided with bolt holes; the front end and the rear end of the guide rod are respectively arranged on the front side and the rear side of the inner cavity of the chute; the positioning plate is arranged at the front side of the bottom end of the inner cavity of the bottom shell; the fixing mechanism is arranged in the inner cavity of the positioning cavity; the firing mechanism is arranged in the inner cavity of the bottom shell; the rear end of the sleeve is embedded in the inner cavity of the bottom shell, the rear end of the sleeve is inserted in the inner cavity of the positioning plate in a matching way, and the front end of the sleeve extends out of the inner cavity of the bottom shell; the sampling needle is inserted into the inner cavity of the sleeve in a sliding mode in a matching mode, the front end and the rear end of the sampling needle extend out of the inner cavity of the sleeve, the rear end of the sampling needle is inserted into the inner cavity of the firing mechanism in a matching mode, and a sampling groove is formed in the front side of the outer wall of the sampling needle; the top cover is placed at the top end of the bottom shell and is matched with the bottom shell; the number of the bolts is four, the four bolts are respectively matched with the four corners of the top end of the top cover in a rotatable manner, and the bottom ends of the bolts are in threaded connection with the inner cavities of the bolt holes.

Preferably, in order to release the positioning of the connection block, the fixing mechanism includes: the pressing plate is slidably and adaptively inserted into the inner cavity of the positioning cavity, and the bottom end of the pressing plate extends out of the bottom end of the bottom shell; the two limiting rods are arranged, the upper ends and the lower ends of the two limiting rods are respectively arranged at the left and right ends of the upper side and the lower side of the inner cavity of the positioning cavity, and the limiting rods are slidably inserted into the top ends of the pressing plates; the first spring is sleeved on the outer wall of the limiting rod, the top end of the first spring is clamped on the top end of the inner cavity of the positioning cavity, and the bottom end of the first spring is clamped on the top end of the pressing plate; the number of the extrusion rods is two, the two extrusion rods are respectively arranged at the left side and the right side of the top end of the pressing plate, and the top end of the extrusion rods is matched with the bottom end of the inner cavity of the clamping groove in a sliding manner.

Preferably, in order to ensure that the sampling needle can be moved backward rapidly, the firing mechanism comprises: the push rod is slidably matched and inserted in the middle of the rear side of the inner cavity of the bottom shell, and the rear end of the push rod extends out of the rear side of the bottom shell; the second spring is sleeved on the outer wall of the push rod, the rear end of the second spring is clamped at the rear end of the push rod, and the front end of the second spring is clamped at the rear side of the bottom shell; the connecting block is arranged at the front end of the push rod, extrusion grooves are formed in the left side and the right side of the bottom end of the connecting block, and the positions of the extrusion grooves correspond to the positions of the clamping grooves; the number of the sliding blocks is two, the two sliding blocks are respectively matched and inserted into the rear sides of the inner cavities of the two sliding grooves, and the sliding blocks are slidably sleeved on the outer wall of the guide rod.

Preferably, in order to fix the connection block, the firing mechanism further includes: the third spring is embedded in the inner cavity of the extrusion groove, and the top end of the third spring is clamped at the top end of the inner cavity of the extrusion groove; the clamping column is embedded in the inner cavity of the extrusion groove in a sliding mode, the top end of the clamping column is clamped at the bottom end of the third spring, the bottom end of the clamping column extends out of the inner cavity of the extrusion groove, and the clamping column is matched with the clamping groove.

Preferably, the distance between the top end of the extrusion rod and the bottom end of the inner cavity of the bottom shell is smaller than the distance between the top end of the pressing plate and the top end of the inner cavity of the positioning cavity.

Compared with the prior art, the utility model has the beneficial effects that: this biopsy puncture device, promote the push rod and can drive the sample needle and remove telescopic inner chamber, and extrude the second spring and take place elastic deformation, until the draw-in column moves to the draw-in groove position, utilize the third spring to promote the draw-in column and move down, make the draw-in column remove the inner chamber of entering draw-in groove, and then can fix the position of connecting block, utilize the push rod of push pressing plate promotion upwards to remove can extrude the inner chamber of draw-in groove with the draw-in column, thereby can stimulate the sample needle and remove backward fast under the elasticity effect of second spring, thereby can cut the tissue that needs the biopsy in the inner chamber of draw-in groove, this device is after taking the sample in the biopsy, can change the sample needle, and then can reduce the cost of biopsy puncture sample, avoid causing economic loss, convenient to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of a pressing plate;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is an exploded view of the firing mechanism;

FIG. 5 is a schematic view of the structure of the extrusion tank;

fig. 6 is a front sectional view of the bottom chassis;

FIG. 7 is an enlarged view of the utility model at A;

FIG. 8 is an enlarged view of the utility model at B;

FIG. 9 is an enlarged view at C of the present utility model;

fig. 10 is an enlarged view of the utility model at D.

In the figure: 1. bottom shell, 2, location chamber, 3, draw-in groove, 4, spout, 5, guide arm, 6, bolt hole, 7, locating plate, 8, fixed establishment, 81, pressing plate, 82, gag lever post, 83, first spring, 84, extrusion pole, 9, firing mechanism, 91, push rod, 92, second spring, 93, connecting block, 94, extrusion groove, 95, third spring, 96, card post, 97, slider, 10, sleeve, 11, sampling needle, 12, sampling groove, 13, top cap, 14, bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-10, the present utility model provides a technical solution: a biopsy punch device, comprising: the bottom of the bottom shell 1 is provided with a positioning cavity 2, the left side and the right side of the bottom end of the inner cavity of the bottom shell 1 are provided with clamping grooves 3 communicated with the inner cavity of the positioning cavity 2, the left side and the right side of the bottom end of the inner cavity of the bottom shell 1 are provided with sliding grooves 4 along the front and the back directions, the four corners of the top end of the bottom shell 1 are provided with bolt holes 6, the front end and the back end of the guide rod 5 are respectively arranged on the front side and the back side of the inner cavity of the sliding grooves 4, the guide rod 5 can be utilized to drive the connecting block 93 to drive the sampling needle 11 to linearly move, the positioning plate 7 is arranged on the front side of the bottom end of the inner cavity of the bottom shell 1, the positioning plate 7 is used for positioning the sleeve 10, the fixing mechanism 8 is arranged in the inner cavity of the positioning cavity 2, the fixing mechanism 8 is used for fixing the connecting block 93, the firing mechanism 9 is arranged in the inner cavity of the bottom shell 1, the firing mechanism 9 is used for driving the sampling needle 11 to move, the rear end of the sleeve 10 is embedded in the inner cavity of the bottom shell 1, the rear end of the sleeve 10 is matched and inserted in the inner cavity of the positioning plate 7, the front end of the sleeve 10 extends out of the inner cavity of the bottom shell 1, the sleeve 10 is in the prior art and is used for accommodating the sampling needle 11, the sampling needle 11 is slidably matched and inserted in the inner cavity of the sleeve 10, the front end and the rear end of the sampling needle 11 extend out of the inner cavity of the sleeve 10, the rear end of the sampling needle 11 is matched and inserted in the inner cavity of the firing mechanism 9, the front side of the outer wall of the sampling needle 11 is provided with the sampling groove 12, the sampling needle 11 is in the prior art, the sampling needle 11 is used for collecting tissues needing biopsy, the top cover 13 is placed at the top end of the bottom shell 1, the top cover 13 is matched with the bottom shell 1, the number of bolts 14 is four, four bolts 14 are respectively matched and rotatably inserted into four corners of the top end of the top cover 13, the bottom ends of the bolts 14 are in threaded connection with the inner cavities of the bolt holes 6, and the bottom shell 1 and the top cover 13 can be fixed together by the bolts 14.

Preferably, the fixing mechanism 8 further includes: the pressing plate 81, the gag lever post 82, first spring 83 and extrusion rod 84, the slidable looks adaptation of pressing plate 81 is pegged graft in the inner chamber of locating cavity 2, the bottom of pressing plate 81 extends the bottom of drain pan 1, promote the extrusion plate 81 and can drive extrusion rod 84 and remove, the quantity of gag lever post 82 is two, the upper and lower both ends of two gag lever posts 82 set up respectively in the inner chamber upper and lower both sides left and right sides both ends of locating cavity 2, the slidable grafting of gag lever post 82 is in the top of pressing plate 81, first spring 83 cup joints in the outer wall of gag lever post 82, the top joint of first spring 83 is in the inner chamber top of locating cavity 2, the bottom joint of first spring 83 is in the top of pressing plate 81, first spring 83 is rotatory spring, take place elastic deformation after receiving the external force extension, the back is got rid of to initial condition, first spring 83 is used for promoting the pressing plate 81 and resumes initial position here, the quantity of extrusion rod 84 is two, two extrusion rods 84 set up respectively in the top left and right sides of pressing plate 81, the top looks adaptation slidable in the inner chamber of pressing plate 81, the top looks adaptation of extrusion rod 84 can be in the inner chamber 3 of using the draw-in groove 96, can be pushed out from the inner chamber 3 to the inner chamber of clamping plate 84 to the inner chamber between the inner chamber 3, 96 can be guaranteed to the inner chamber 3, the distance between the top end of extrusion rod 1 is pushed out of the inner chamber 96, the inner chamber is 3, the bottom of the inner chamber is guaranteed.

Preferably, the firing mechanism 9 further comprises: the push rod 91, the second spring 92, the connecting block 93, the extrusion groove 94, the third spring 95, the clamping column 96 and the sliding block 97, the push rod 91 is slidably matched and inserted in the middle of the rear side of the inner cavity of the bottom shell 1, the rear end of the push rod 91 extends out of the rear side of the bottom shell 1, the push rod 91 is used for pushing the sampling needle 11 to move, the second spring 92 is sleeved on the outer wall of the push rod 91, the rear end of the second spring 92 is clamped on the rear end of the push rod 91, the front end of the second spring 92 is clamped on the rear side of the bottom shell 1, the second spring 92 is a rotary spring and is elastically deformed after being extruded or stretched by external force, the external force is removed and then returns to an initial state, the second spring 92 is used for pushing the push rod 91 to move backwards, the connecting block 93 is arranged at the front end of the push rod 91, the extrusion groove 94 is formed in the left side and the right side of the bottom end of the connecting block 93, the position of the extrusion groove 94 corresponds to the position of the clamping groove 3, the connecting block 93 is used for installing the sampling needle 11, the third spring 95 is embedded in the inner cavity of the extrusion groove 94, the top end of the third spring 95 is clamped at the top end of the inner cavity of the extrusion groove 94, the third spring 95 is a rotary spring, elastic deformation occurs after the third spring is extruded or stretched by external force, the initial state is restored after the external force is removed, the third spring 95 is used for pushing the clamping column 96 to move into the inner cavity of the clamping groove 3, the slidable inner cavity of the clamping column 96 is embedded in the inner cavity of the extrusion groove 94, the top end of the clamping column 96 is clamped at the bottom end of the third spring 95, the bottom end of the clamping column 96 extends out of the inner cavity of the extrusion groove 94, the clamping column 96 is matched with the clamping groove 3, the position of the connecting block 93 can be fixed by utilizing the matching between the clamping column 96 and the clamping groove 3, the number of the sliding blocks 97 is two, the two sliding blocks 97 are respectively matched and inserted into the rear sides of the inner cavities of the two sliding grooves 4, the sliding block 97 is slidably sleeved on the outer wall of the guide rod 5.

The detailed connection means are known in the art, and the following mainly describes the working principle and process, and the specific work is as follows.

When in use, the bottom shell 1 and the top cover 13 are taken, the sleeve 10 is inserted into tissue to be sampled together with the sampling needle 11, the sampling needle 11 is pushed to move forwards by pushing the push rod 91 to further push the connecting block 93 to drive the sampling needle 11 to move forwards by using the push rod 91, the second spring 92 is extruded to elastically deform until the position of the clamping column 96 corresponds to the position of the clamping groove 3, the clamping column 96 can be pushed to move into the inner cavity of the clamping groove 3 under the elastic force of the third spring 95 for fixing the connecting block 93 so as to fix the sampling needle 11, at the moment, the sampling groove 12 moves out of the inner cavity of the sleeve 10, the pressing plate 81 is pushed, the pressing rod 84 is pushed to move upwards by using the pressing plate 81, the first spring 83 is extruded to elastically deform, the clamping column 96 is pushed to move upwards by using the pressing rod 84 until the clamping column 96 moves out of the inner cavity of the clamping groove 3, the push rod 91 is pulled under the elastic force of the second spring 92 to drive the connecting block 93 and the sampling needle 11 to move backwards quickly, so that tissues needing to be sampled and biopsied can be cut in the inner cavity of the sampling groove 12 by utilizing the cooperation between the barb at the front end of the sampling needle 11 and the front end of the sleeve 10, then the sleeve 10 and the sampling needle 11 are pulled out of the tissues, the tissues needing to be sampled and biopsied are taken out of the inner cavity of the sampling groove 12, then the bolt 14 is rotated until the bolt 14 is separated from the bolt hole 6, the top cover 13 is separated from the bottom cover 1, the sleeve 10 is taken upwards, the sleeve 10 and the sampling needle 11 needing to be replaced are taken out of the inner cavity of the positioning plate 7 and the connecting block 93, the sampling needle 11 and the sleeve 10 are installed in the inner cavity of the bottom cover 1 by moving in the opposite directions, the bottom cover 1 and the top cover 13 are fixed together by moving in the opposite directions, after biopsy sampling is carried out, the device can replace the sampling needle 11, so that the cost of biopsy puncture sampling can be reduced, economic loss is avoided, and the device is convenient to use.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation; meanwhile, unless explicitly specified and limited otherwise, the terms "snap-in," "shaft-connected," "plug-in," "welded," "screwed-on" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A biopsy punch device, comprising:

the bottom of the bottom shell (1) is provided with a positioning cavity (2), the left side and the right side of the bottom end of the inner cavity of the bottom shell (1) are provided with clamping grooves (3) communicated with the inner cavity of the positioning cavity (2), the left side and the right side of the bottom end of the inner cavity of the bottom shell (1) are provided with sliding grooves (4) along the front-back direction, and the four corners of the top end of the bottom shell (1) are provided with bolt holes (6);

the front end and the rear end of the guide rod (5) are respectively arranged at the front side and the rear side of the inner cavity of the chute (4);

the positioning plate (7) is arranged at the front side of the bottom end of the inner cavity of the bottom shell (1);

the fixing mechanism (8) is arranged in the inner cavity of the positioning cavity (2);

the firing mechanism (9) is arranged in the inner cavity of the bottom shell (1);

the rear end of the sleeve (10) is embedded in the inner cavity of the bottom shell (1), the rear end of the sleeve (10) is in fit connection with the inner cavity of the positioning plate (7), and the front end of the sleeve (10) extends out of the inner cavity of the bottom shell (1);

the sampling needle (11), the slidable looks adaptation grafting of sampling needle (11) is in the inner chamber of sleeve (10), the inner chamber of sleeve (10) is all extended at both ends around sampling needle (11), the inner chamber in firing mechanism (9) is pegged graft in the rear end looks adaptation of sampling needle (11), sampling groove (12) have been seted up to the outer wall front side of sampling needle (11);

the top cover (13) is arranged at the top end of the bottom shell (1), and the top cover (13) is matched with the bottom shell (1);

the number of the bolts (14) is four, the four bolts (14) are respectively matched with the four corners of the top end of the top cover (13) in a rotatable mode, and the bottom ends of the bolts (14) are in threaded connection with the inner cavities of the bolt holes (6).

2. A biopsy punch device according to claim 1, wherein: the fixing mechanism (8) comprises:

the pressing plate (81) is slidably and adaptively inserted into the inner cavity of the positioning cavity (2), and the bottom end of the pressing plate (81) extends out of the bottom end of the bottom shell (1);

the two limiting rods (82) are arranged, the upper ends and the lower ends of the two limiting rods (82) are respectively arranged at the left ends and the right ends of the upper side and the lower side of the inner cavity of the positioning cavity (2), and the limiting rods (82) are slidably inserted into the top ends of the pressing plates (81);

the first spring (83), the first spring (83) is sleeved on the outer wall of the limiting rod (82), the top end of the first spring (83) is clamped on the top end of the inner cavity of the positioning cavity (2), and the bottom end of the first spring (83) is clamped on the top end of the pressing plate (81);

the extrusion rods (84), the number of the extrusion rods (84) is two, the two extrusion rods (84) are respectively arranged at the left side and the right side of the top end of the pressing plate (81), and the top end of the extrusion rods (84) is matched with and slidably inserted into the bottom end of the inner cavity of the clamping groove (3).

3. A biopsy punch device according to claim 2, wherein: the firing mechanism (9) comprises:

the push rod (91) is slidably and adaptively inserted into the middle part of the rear side of the inner cavity of the bottom shell (1), and the rear end of the push rod (91) extends out of the rear side of the bottom shell (1);

the second spring (92) is sleeved on the outer wall of the push rod (91), the rear end of the second spring (92) is clamped at the rear end of the push rod (91), and the front end of the second spring (92) is clamped at the rear side of the bottom shell (1);

the connecting block (93), connecting block (93) set up in the front end of push rod (91), the left and right sides of bottom of connecting block (93) has all offered extrusion groove (94), the position of extrusion groove (94) corresponds with the position of draw-in groove (3);

the sliding blocks (97) are two in number, the two sliding blocks (97) are respectively connected to the rear sides of the inner cavities of the two sliding grooves (4) in an adaptive mode, and the sliding blocks (97) are slidably sleeved on the outer walls of the guide rods (5).

4. A biopsy punch device according to claim 3, wherein: the firing mechanism (9) further comprises:

the third spring (95) is embedded in the inner cavity of the extrusion groove (94), and the top end of the third spring (95) is clamped at the top end of the inner cavity of the extrusion groove (94);

the clamping column (96), slidable of clamping column (96) is embedded in the inner chamber of extrusion groove (94), the top joint of clamping column (96) is in the bottom of third spring (95), the inner chamber of extrusion groove (94) is extended to the bottom of clamping column (96), clamping column (96) and draw-in groove (3) assorted.

5. A biopsy punch device as defined in claim 4, wherein: the distance between the top end of the extrusion rod (84) and the bottom end of the inner cavity of the bottom shell (1) is smaller than the distance between the top end of the pressing plate (81) and the top end of the inner cavity of the positioning cavity (2).