Puncture sampling device for medical oncology

Abstract

The utility model belongs to the field of medical equipment, particularly relates to a puncture sampling device for medical oncology, and provides the following scheme aiming at the problems that the existing puncture sampling device is easily triggered by mistake and lacks an effective locking mechanism: the puncture sampling device comprises a grab handle, a mounting column, a needle head, a needle tube, a connecting sleeve, a spring I, a sliding chute, a sliding block and a triggering mechanism, the triggering mechanism comprises an L-shaped buckle, the L-shaped buckle is used for clamping and fixing the sliding block, a safety mechanism is further arranged in the grab handle, and the safety mechanism is matched with the clamping block through a connecting rod to lock the L-shaped buckle. In the sampling device, the stability of the position of the needle head and the sampling accuracy can be ensured through the design of the L-shaped buckle and the first spring, and a double-locking mechanism is introduced to prevent false triggering; the safety and reliability are improved, the overall structural design is reasonable, the human engineering principle is met, and durability and usability are ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a puncture sampling device for use in oncology. Background Technology

[0002] In the clinical diagnosis and treatment of oncology, biopsy is a crucial step that helps doctors accurately determine the type, grade, and presence of metastasis of the tumor. Traditional biopsy devices typically consist of a handheld handle and a needle connected to the handle. Doctors manually operate the handle to insert the needle into the patient's tumor tissue to obtain the required sample. This type of biopsy device plays an important role in the clinical diagnosis and treatment of oncology, providing doctors with effective diagnostic evidence.

[0003] Although existing biopsy devices meet the clinical needs of oncology to some extent, some obvious problems have been exposed in actual use. Specifically, the design and use of existing biopsy devices often do not take into account how to effectively prevent accidental triggering. If the doctor is not careful with his hand movements or the device is slightly touched by the outside world during the operation, the needle may be accidentally extended. This will not only interfere with the normal sampling process, but may also cause unnecessary harm to the patient. In addition, due to the lack of an effective locking mechanism, the doctor cannot ensure that the device remains in its current state when the operation needs to be paused, thus increasing the risk and uncertainty of the operation. Therefore, a biopsy device for oncology is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing puncture sampling devices, which often fail to consider how to effectively prevent accidental triggering in their design and use. During operation, if the doctor is careless in their hand movements or the device is slightly touched by the outside world, the needle may be accidentally extended. This not only interferes with the normal sampling process but may also cause unnecessary harm to the patient. In addition, due to the lack of an effective locking mechanism, the doctor cannot ensure that the device remains in its current state when the operation needs to be paused, thus increasing the risk and uncertainty of the operation. Therefore, this invention proposes a puncture sampling device for oncology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A puncture sampling device for oncology, comprising a handle. One inner wall of the handle is fixedly connected with a mounting column. One end of the mounting column is fixedly connected with a needle head. The needle head penetrates through one inner wall of the handle. A syringe tube is sleeved on the circumferential outer wall of the needle head. One end of the syringe tube slidably penetrates through one side of the handle. One end of the syringe tube located inside the handle is fixedly connected with a connecting sleeve. The connecting sleeve is sleeved on the circumferential outer wall of the mounting column. A first spring is fixedly connected between one end of the mounting column and one inner wall of the connecting sleeve. The first spring is sleeved on the circumferential outer wall of the needle head. Through grooves are opened on both sides of the handle. Two sliders are fixedly connected to the circumferential outer wall of the connecting sleeve. The sliders are slidably connected in the corresponding through grooves. A triggering mechanism for clamping and fixing the sliders is arranged inside the handle.

[0007] In a possible design, the triggering mechanism includes two buttons. The two buttons respectively slide through the top inner wall and the bottom inner wall of the handle. Two L-shaped buckles are fixedly connected to the sides of the two buttons close to each other. The upper and lower groups of L-shaped buckles are symmetrically distributed on both sides of the mounting column and are arranged in a staggered manner.

[0008] In a possible design, two inner sliding rods are fixedly connected to the bottom of the upper button. Two outer sleeves are fixedly connected to the top of the lower button. The outer sleeves are sleeved on the circumferential outer walls of the corresponding inner sliding rods. A second spring is sleeved on the circumferential outer walls of the inner sliding rods and the corresponding outer sleeves.

[0009] In a possible design, two through limiting grooves are opened on both sides of the handle. A clamping block is fixedly connected to one side of the L-shaped buckle. An insurance mechanism for cooperating with the clamping block is slidably arranged in the plurality of limiting grooves.

[0010] In a possible design, the insurance mechanism includes two connecting rods. The connecting rods are in a "C" shape and are adapted to the clamping blocks. The connecting rods are clamped with the corresponding two clamping blocks. The connecting rods are slidably connected in the corresponding two limiting grooves. A connecting ring is fixedly connected to one side of the two connecting rods. The connecting ring is slidably connected to the outside of the handle.

[0011] In a possible design, a sampling groove for cooperating with the syringe tube to sample is opened at the top of one end of the needle head. <​Working Principle: In this application, when medical personnel need to use this sampling device for sampling, firstly, with the assistance of CT imaging, the cannula is inserted to the edge of the sampling site. Then, the safety mechanism of this device is moved forward, causing the connecting rod to disengage from the locking block. Then, by manipulating the slider to move within the groove, the connecting cannula is moved inward, which in turn moves the needle inward and powers the first spring. This continues until the slider is moved into the slot of the L-shaped buckle, completing the fixation of the slider and exposing the sampling slot at the top of the needle. Specifically, the slider pushes the top and bottom L-shaped buckles to move through the inclined surface of the L-shaped buckle. Then, the two L-shaped buckles move the two buttons closer together and power the second spring. When the slider moves to the slot position of the L-shaped buckle, the second spring, under its elastic force, pushes the two buttons... The buttons are moved away from each other. During this process, the inner slider slides up and down on the outer tube to prevent the two buttons from shifting. Then, the needle is inserted into the cannula and into the sampling area, filling the sampling groove with the tissue to be sampled. Then, both buttons are pressed simultaneously. The two buttons then move the L-shaped latches relative to each other and release the restriction on the slider. Then, the spring pushes the connecting sleeve outward quickly under the action of elasticity, which in turn moves the needle outward quickly. The needle then cuts off the tissue to be sampled in the sampling groove and preserves it in the sampling groove. Then, the device is removed, and the sample tissue in the sampling groove is exposed by manipulating the slider before it is removed. Because both buttons need to be pressed simultaneously to trigger the device, it can prevent the device from being accidentally triggered by accidentally pressing one of the buttons.

[0013] Beneficial effects: In this utility model, the puncture sampling device for oncology uses an L-shaped buckle design to firmly engage and fix the slider, thereby ensuring the stability of the needle position during sampling. When medical staff manipulate the slider to move the connecting sleeve and needle to the predetermined position, the L-shaped buckle will automatically engage the slider to prevent it from moving due to external factors. At the same time, the spring-loaded design allows the needle to be pushed outward quickly and forcefully during sampling, ensuring accurate cutting and collection of the sample.

[0014] In this invention, a puncture sampling device for oncology is described. By introducing a dual locking mechanism, including the locking of an L-shaped buckle and the sliding locking of a safety mechanism, the safety mechanism, in normal use, securely locks the L-shaped buckle inside the handle through the cooperation of the connecting rod and the locking block, preventing it from moving due to accidental contact. Only when medical personnel actively move the safety mechanism forward to disengage the connecting rod from the locking block can the sampling process be triggered by manipulating the slider. Furthermore, even if the safety mechanism is unlocked, two buttons need to be pressed simultaneously to release the L-shaped buckle from restricting the slider, further reducing the possibility of accidental triggering. This design greatly improves the safety and reliability of the device.

[0015] In this utility model, the puncture sampling device for oncology has a reasonable overall structural design, and the connection between the components is tight and stable, which ensures the durability and reliability of the device during long-term use. At the same time, the sliding design of the slider in the groove and the pressing operation of the button are in line with the ergonomic principle, so that medical staff can easily and accurately complete the sampling task during operation.

[0016] In this invention, the L-shaped buckle design securely engages and fixes the slider, ensuring the stability of the needle position during sampling. When medical personnel manipulate the slider to move the connecting cannula and needle to the predetermined position, the L-shaped buckle automatically engages the slider, preventing movement due to external factors. Simultaneously, the spring-loaded design allows for rapid and forceful outward movement of the needle during sampling, ensuring accurate sample cutting and collection. A dual locking mechanism is introduced, including the L-shaped buckle's engagement locking and the safety mechanism's sliding locking. Under normal use, the safety mechanism, through the cooperation of the connecting rod and the engagement block, firmly locks the L-shaped buckle inside the handle, preventing accidental movement. The device requires medical staff to actively move the safety mechanism forward to disengage the connecting rod from the locking block before the sampling process can be triggered by manipulating the slider. Furthermore, even if the safety mechanism is unlocked, two buttons must be pressed simultaneously to release the L-shaped latch from the slider, further reducing the possibility of accidental triggering. This design greatly improves the safety and reliability of the device. The reasonable overall structural design ensures that the connections between the components are tight and stable, guaranteeing the durability and reliability of the device during long-term use. At the same time, the sliding design of the slider in the groove and the pressing operation of the buttons are ergonomic, allowing medical staff to easily and accurately complete the sampling task during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a puncture sampling device for oncology proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of a puncture sampling device for oncology proposed in this utility model in use.

[0019] Figure 3 This is a schematic diagram of the overall structure of the handle in a puncture sampling device for oncology proposed in this utility model.

[0020] Figure 4 A cross-sectional view of the internal structure of the handle in a puncture sampling device for oncology proposed in this utility model;

[0021] Figure 5An exploded view of the internal structure of the handle in a puncture sampling device for oncology proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the overall structure of the triggering mechanism in a puncture sampling device for oncology proposed in this utility model.

[0023] In the diagram: 1. Handle; 2. Mounting post; 3. Needle; 4. Sampling slot; 5. Needle tube; 6. Connecting sleeve; 7. Spring 1; 8. Slider; 9. Slide groove; 10. Button; 11. L-shaped buckle; 12. Locking block; 13. Inner slide rod; 14. Outer sleeve; 15. Spring 2; 16. Connecting rod; 17. Limiting groove; 18. Connecting ring; 19. Triggering mechanism; 20. Safety mechanism. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figures 1-6 A sampling device includes a handle 1, a mounting post 2 fixedly connected to the inner wall of one side of the handle 1, a needle 3 fixedly connected to one end of the mounting post 2, the needle 3 penetrating the inner wall of one side of the handle 1, a needle tube 5 sleeved on the outer circumference of the needle 3, one end of the needle tube 5 slidingly penetrating the side of the handle 1, a connecting sleeve 6 fixedly connected to the end of the needle tube 5 inside the handle 1, the connecting sleeve 6 being sleeved on the outer circumference of the mounting post 2, and a spring 7 fixedly connected between one end of the mounting post 2 and the inner wall of one side of the connecting sleeve 6, the spring 7 being sleeved on the outer circumference of the needle 3. A sampling groove 4 is formed at the top of one end of the needle 3 for cooperating with the needle tube 5 to take a sample.

[0026] Both sides of the handle 1 have through grooves 9. Two sliders 8 are fixedly connected to the outer circumference of the connecting sleeve 6. The sliders 8 are slidably connected in the corresponding grooves 9. The handle 1 has a trigger mechanism 19 for engaging and fixing the sliders 8. The trigger mechanism 19 includes two buttons 10, which slide through the top and bottom inner walls of the handle 1 respectively. Two L-shaped buckles 11 are fixedly connected to the side of the two buttons 10 that are close to each other. The upper and lower sets of L-shaped buckles 11 are symmetrically distributed on both sides of the mounting post 2 and are staggered. The bottom of the upper button 10 is fixedly connected to two inner slide rods 13, and the top of the lower button 10 is fixedly connected to two outer sleeves 14. The outer sleeves 14 are fitted onto the outer circumference of the corresponding inner slide rods 13. The inner slide rods 13 and the outer circumference of the corresponding outer sleeves 14 are fitted with the same spring 15.

[0027] This application can be used in the field of medical devices and other fields applicable to this application.

[0028] Embodiment 2: Refer to Figures 1-6 , and it is improved based on Embodiment 1: A puncture sampling device for oncology, which is applied to the field of medical devices. Two through limiting grooves 17 are opened on both sides of the handle 1. A clamping block 12 is fixedly connected to one side of the L-shaped buckle 11. A safety mechanism 20 for cooperating with the clamping block 12 is slidably arranged in a plurality of limiting grooves 17. The safety mechanism 20 includes two connecting rods 16. The connecting rods 16 are in a "C" shape. The connecting rods 16 are adapted to the clamping block 12. The connecting rods 16 are clamped with the corresponding two clamping blocks 12. The connecting rods 16 are slidably connected in the corresponding two limiting grooves 17. A same connecting ring 18 is fixedly connected to one side of the two connecting rods 16. The connecting ring 18 is slidably connected to the outside of the handle 1.

[0029] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field of the present invention within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A puncture sampling device for use in oncology, comprising a handle (1), characterized in that, One inner wall of one side of the handle (1) is fixedly connected with a mounting column (2). One end of the mounting column (2) is fixedly connected with a needle (3). The needle (3) penetrates through one inner wall of the handle (1). A syringe tube (5) is sleeved on the circumferential outer wall of the needle (3). One end of the syringe tube (5) slidably penetrates through one side of the handle (1). One end of the syringe tube (5) located inside the handle (1) is fixedly connected with a connecting sleeve (6). The connecting sleeve (6) is sleeved on the circumferential outer wall of the mounting column (2). A same first spring (7) is fixedly connected between one end of the mounting column (2) and one inner wall of one side of the connecting sleeve (6). The first spring (7) is sleeved on the circumferential outer wall of the needle (3). Through grooves (9) are formed in both sides of the handle (1). Two sliders (8) are fixedly connected to the circumferential outer wall of the connecting sleeve (⑥). The sliders (8) are slidably connected in the corresponding through grooves (9). A triggering mechanism (19) for clamping and fixing the sliders (8) is arranged inside the handle (1).

2. The biopsy device for medical oncology according to claim 1, characterized in that, The triggering mechanism (19) includes two buttons (10). The two buttons (10) respectively penetrate through the top inner wall and the bottom inner wall of the handle (1) in a sliding manner. Two L-shaped buckles (11) are fixedly connected to one side of the two buttons (10) close to each other. The upper and lower groups of the L-shaped buckles (11) are symmetrically distributed on both sides of the mounting column (2) and are arranged in a staggered manner.

3. A puncture sampling device for oncology according to claim 2, characterized in that, Two inner sliding rods (13) are fixedly connected to the bottom of the button (10) located above. Two outer sleeves (14) are fixedly connected to the top of the button (10) located below. The outer sleeves (14) are sleeved on the circumferential outer walls of the corresponding inner sliding rods (13). A same second spring (15) is sleeved on the circumferential outer walls of the inner sliding rods (13) and the corresponding outer sleeves (14).

4. A puncture sampling device for oncology according to claim 2, characterized in that, Two through limiting grooves (17) are formed in both sides of the handle (1). A clamping block (12) is fixedly connected to one side of the L-shaped buckle (11). An insurance mechanism (20) for cooperating with the clamping block (12) is slidably arranged in the plurality of limiting grooves (17).

5. A biopsy device for use in oncology according to claim 4, characterized in that, The insurance mechanism (20) includes two connecting rods (16). The connecting rods (16) are in a "C" shape. The connecting rods (16) are adapted to the clamping blocks (12). The connecting rods (16) are clamped with the corresponding two clamping blocks (12). The connecting rods (16) are slidably connected in the corresponding two limiting grooves (17). A same connecting ring (18) is fixedly connected to one side of the two connecting rods (16). The connecting ring (18) is slidably connected to the outside of the handle (1).

6. A biopsy device for use in oncology according to claim 1, characterized in that, A sampling groove (4) for cooperating with the syringe tube (5) to take a sample is formed at the top of one end of the needle (3).

Images