CN205072914U - Novel biopsy sample device - Google Patents

Abstract

The utility model discloses a novel biopsy sampling device, which comprises a needle tube, a sleeve, an H-shaped fixing frame, and an anti-skid pad. The end of the needle tube is provided with an interface, and the interface is detachably connected with a connecting pipe connected with a hollow cylinder. , the cylinder body is provided with a piston matching the cylinder body, and the piston is connected with a piston rod extending outside the cylinder body; the connecting pipe is connected with a vent pipe connected with the inner cavity of the connecting pipe, the top of the vent pipe is provided with a cap, and the outer wall of the vent pipe is provided with a The air hole, the air hole is provided with a sealing cover matching the air hole, the sealing cover is connected with a horizontal bar, the horizontal bar is connected with a vertical bar, the inner wall of the air pipe is provided with a support rod that is movably connected with the vertical bar, and the end of the vertical bar is connected with the air pipe. The inner wall of the air pipe is connected by a spring, and the outer wall of the air pipe is provided with a pneumatic alarm device near the air hole. The beneficial effects are: convenient use, strong practicability and long service life.

Description

A new biopsy sampling device

technical field

The utility model relates to a novel biopsy sampling device.

Background technique

Early detection of tumors has an important impact on timely treatment. With the continuous improvement of inspection methods and methods in recent years, the accuracy of tumor diagnosis has gradually increased. Biopsy includes two forms of puncture and incision and open biopsy. The method of incision is not only very cumbersome, time-consuming and laborious to operate, but also the surgical incision is relatively large and the healing is slow. The removed tumor tissue is directly exposed to the air and is easily polluted. Therefore, puncture needles are often used clinically to obtain tumor tissue samples. The current puncture needles are not easy to effectively intercept the sampled tissue, and it is not easy to collect the tissue remaining in the puncture needle. It is not easy to control the depth of tissue penetration by using the puncture needle, and it is easy to affect the accuracy of the test results.

In view of this, Chinese patent 201520298431.0 discloses a biopsy sampling device for oncology, including a needle tube, sleeve, fixing device, non-slip pad, scale line, handle, negative pressure exhaust device, control device, air hole, filter screen , dust cover and power supply unit. By using the oncology biopsy sampling device described in the utility model, the length of the needle tube exposed to the sleeve is adjusted through the fixing device, and the depth of the needle tube entering the tissue is accurately controlled according to the scale line on the needle tube, and the negative pressure exhaust is turned on after the sampling is completed. The device collects the sample tissue in the needle tube onto the filter. The utility model can accurately control the depth of the needle tube entering the tissue, and easily complete the interception of the sampled tissue. However, this utility model forms a negative pressure through a negative pressure exhaust device, so it is difficult to control the strength of tissue extraction, and excessive force will bring pain to others; and it is difficult to control the amount of tissue extraction, so it is inconvenient to use and poor in practicability.

Utility model content

The problem to be solved by the utility model is to provide a novel biopsy sampling device which is convenient to use, strong in practicability and long in service life.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a novel biopsy sampling device, including a needle tube, a sleeve is slidably sleeved on the needle tube, and the sleeves are respectively arranged on both sides of the needle tube. There is an H-shaped fixing frame, one end of the H-shaped fixing frame is arranged on the outside of the sleeve, and the other end is arranged on the inside of the sleeve, and a non-slip pad is arranged between the H-shaped fixing frame and the needle tube, It is characterized in that the end of the needle tube is provided with an interface, and the interface is detachably connected with a connecting pipe, and the connecting pipe is connected with a hollow cylinder, and a piston matching the cylinder is arranged in the cylinder, The piston is connected with a piston rod extending to the outside of the cylinder; the connecting pipe is connected with a vent pipe communicating with the inner cavity of the connecting pipe, the top of the vent pipe is provided with a cap, and the outer wall of the vent pipe is provided with a An air hole, the air hole is provided with a sealing cover matching the air hole, the sealing cover is connected with a horizontal bar, the horizontal bar is connected with a vertical bar, and the inner wall of the ventilation pipe is provided with a flexible connection with the vertical bar A support rod, the end of the vertical rod is connected to the inner wall of the ventilation pipe through a spring, and a pneumatic alarm device is arranged on the outer wall of the ventilation pipe near the air hole.

Preferably, in the above-mentioned novel biopsy sampling device, wherein the connection tube is connected to the interface through threads.

Preferably, in the above novel biopsy sampling device, the needle tube is provided with a first scale mark.

Preferably, in the above-mentioned novel biopsy sampling device, a second scale line is arranged on the cylinder body.

Preferably, in the above novel biopsy sampling device, a handle is provided at the end of the piston rod.

Preferably, the above novel biopsy sampling device, wherein the pneumatic alarm device is a whistle.

Preferably, in the above novel biopsy sampling device, wherein the vertical rod is connected to the support rod through a pin shaft.

The technical effect of the utility model is mainly reflected in that: the doctor pulls the piston rod outward, so that a vacuum is formed in the cylinder and the needle tube, and the tissue can be extracted quickly, the structure is simple, and it is convenient to use; and the doctor can easily control the movement of pulling the piston rod. Speed, avoiding the pain caused to the patient due to the rapid extraction of tissue, so it is practical; when the needle tube is blocked, because the external pressure is higher than the pressure of the cylinder, the air will push the sealing cover to open, and the air will enter the cylinder from the air hole Maintaining the pressure balance prevents damage to the utility model and prolongs the service life; when the pressure in the cylinder returns to normal, under the action of the spring, the cross bar drives the sealing cover to close; when the air enters from the air hole, the pneumatic alarm device can be triggered to alarm, Alert the doctor to a blocked needle.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a partial enlarged view of A in Figure 1;

Fig. 3 is a structural schematic diagram when the sealing cover is opened in Fig. 2;

Fig. 4 is a partial enlarged view of B in Fig. 1 .

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1, 2, 3, and 4, a new type of biopsy sampling device includes a needle tube 1, a sleeve 2 is slidably sleeved on the needle tube 1, and an H-shaped fixing device is arranged on the sleeve 2 on both sides of the needle tube 1. Frame 3, one end of the H-shaped fixed frame 3 is set on the outside of the sleeve 2, and the other end is set on the inside of the sleeve 2, and a non-slip pad 4 is set between the H-shaped fixed frame 3 and the needle tube 1, and the doctor can insert it according to the depth Sliding sleeve 2, easy to use.

The end of the needle tube 1 is provided with an interface 5, the interface 5 is detachably connected with a connecting tube 6, the connecting tube 6 is connected with a hollow cylinder 7, the cylinder 7 is provided with a piston 8 matching the cylinder 7, and the piston 8 is connected with a The piston rod 9 extending to the outside of the cylinder 7; the connecting pipe 6 is connected with a vent pipe 61 communicating with the inner cavity of the connecting pipe 6, the top of the vent pipe 61 is provided with a cap 62, and the outer wall of the vent pipe 61 is provided with air holes 63, and the air holes 63 A seal cover 64 matching the air hole 63 is arranged inside, the seal cover 64 is connected with a cross bar 65, the cross bar 65 is connected with a vertical bar 66, the inner wall of the ventilation pipe 61 is provided with a support bar 67 which is movably connected with the vertical bar 66, and the vertical bar The end of 66 is connected with the inner wall of vent pipe 61 by spring 68 , and the outer wall of vent pipe 61 is provided with a pneumatic alarm device 69 near the air hole 63 .

The doctor pulls the piston rod 9 outward, so that a vacuum is formed in the cylinder body 7 and the needle tube 1, which can realize rapid tissue extraction. The structure is simple and convenient to use; and the doctor can easily control the speed of pulling the piston rod 9, avoiding the The tissue is too fast to cause pain to the patient, so the practicability is strong; when the needle tube 1 is blocked, the air will push the sealing cover 64 to open, and the air will enter the cylinder 7 from the air hole 63 Maintain the pressure balance, prevent the utility model from being damaged, prolong the service life; Trigger the pneumatic alarm device 69 to report to the police, reminding the doctor that the needle tube 1 is blocked.

The connecting pipe 6 and the interface 5 in the utility model are connected by threads, and this connection method has a simple structure and is easy to disassemble. The needle tube 1 is provided with a first scale line 11, which is convenient for controlling the depth of the needle insertion. The cylinder body 7 is provided with a second scale mark 71, which is designed to facilitate the control of the speed of pulling the piston rod 9.

Wherein the end of the piston rod 9 is provided with a handle 91, which is convenient for the user to grasp. Wherein the pneumatic alarm device 69 is a whistle.

The vertical bar 66 and the support bar 67 in the utility model are connected by a pin shaft, and the structure is simple and the cost is low by adopting this connection method.

The above-mentioned embodiments describe preferred implementations of the present utility model, but do not limit the concept and scope of the present utility model. Under the premise of not departing from the design concept of the utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the utility model should fall into the protection scope of the utility model, and the technology claimed by the utility model The contents are all described in the claims.

Claims (7)

1. A novel biopsy sampling device, comprising a needle tube, a sliding sleeve on the needle tube is provided with a sleeve, and an H-shaped holder is respectively arranged on both sides of the needle tube on the described sleeve, and the H-shaped holder One end is set on the outside of the sleeve, the other end is set on the inside of the sleeve, and a non-slip mat is set between the H-shaped fixing frame and the needle tube, and it is characterized in that: the end of the needle tube is provided with an interface , the interface is detachably connected with a connecting pipe, the connecting pipe is connected with a hollow cylinder, the cylinder is provided with a piston matching the cylinder, and the piston is connected with a piston extending outside the cylinder Rod; the connecting pipe is connected with a vent pipe communicating with the inner cavity of the connecting pipe, the top of the vent pipe is provided with a cap, and the outer wall of the vent pipe is provided with air holes, and the air holes are provided with holes matching the air holes. the sealing cover, the sealing cover is connected with a cross bar, the cross bar is connected with a vertical bar, the inner wall of the ventilation pipe is provided with a support bar that is movably connected with the vertical bar, and the end of the vertical bar is connected with the vertical bar The inner wall of the ventilation pipe is connected by a spring, and the outer wall of the ventilation pipe is provided with a pneumatic alarm device near the air hole. 2. The novel biopsy sampling device according to claim 1, characterized in that: the connecting tube is connected to the interface by threads. 3. The novel biopsy sampling device according to claim 1, characterized in that: the needle tube is provided with a first scale mark. 4. The novel biopsy sampling device according to claim 1, characterized in that: the barrel is provided with a second scale line. 5. The novel biopsy sampling device according to claim 1, characterized in that: the end of the piston rod is provided with a handle. 6. The novel biopsy sampling device according to claim 1, characterized in that: the pneumatic alarm device is a whistle. 7. The novel biopsy sampling device according to claim 1, wherein the vertical rod is connected to the support rod through a pin shaft.