CN211409171U

CN211409171U - Marrow puncture sampling device

Info

Publication number: CN211409171U
Application number: CN201921739875.8U
Authority: CN
Inventors: 许多辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-09-04
Anticipated expiration: 2029-10-16

Abstract

The application relates to a marrow puncture sampling device, which comprises an inner needle, an outer needle, a sample cutting shovel, a sampling push rod, a sampling collector, a needle base, a cover cap and a needle sleeve; the needle base comprises an inner needle handle and an outer needle handle; the sampling collector is sleeved on the sampling push rod; the inner needle is connected with the inner needle handle through the sampling push rod; the outer needle is connected with the outer needle handle through a sampling collector; the sample cutting shovel is positioned at one end of the inner wall of the sampling collector; the needle sleeve is sleeved on the sampling collector; the cap is sleeved on the outer needle. The device is simple to operate, can effectively prevent the bone marrow tissue (specimen or tumor tissue) from leaking when moving, and can relieve the pain of a patient.

Description

Marrow puncture sampling device

Technical Field

The application belongs to the field of medical equipment, and particularly relates to a marrow puncture sampling device.

Background

Bone marrow puncture (bone marrow aspiration) is a common diagnosis technology of bone marrow fluid, and is suitable for diagnosis, differential diagnosis and treatment follow-up of various blood diseases; increase or decrease in the number of erythrocytes, leukocytes, platelets and morphological abnormalities of unknown origin; diagnosis of diseases such as diagnosis and differential diagnosis of fever of unknown origin. The existing bone marrow biopsy needle probe has simple design, the biopsy needle needs to be directly pushed into a sampling part when in use, the requirement on operators is high, the pain of patients is great, and the phenomena of bone penetration and adjacent tissue and organ injury can occur; meanwhile, the existing bone marrow biopsy needle lacks a fixing device for the taken out bone marrow tissue (tumor tissue or specimen), and is easy to cause the loss of the bone marrow (tumor tissue or specimen) sample.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a marrow puncture sampling device, which is simple to operate, can effectively prevent the taken marrow (tumor tissue or specimen) tissue from leaking when moving, and can relieve the pain of a patient in operation.

In order to achieve the above object, the present disclosure provides a bone marrow puncture sampling device, which is characterized in that the bone marrow puncture sampling device comprises an inner needle, an outer needle, a sample cutting shovel, a sampling push rod, a sampling collector, a needle base, a cap and a needle sleeve; the needle base comprises an inner needle handle and an outer needle handle; the sampling collector is sleeved on the sampling push rod; the inner needle is connected with the inner needle handle through the sampling push rod; the outer needle is connected with the outer needle handle through a sampling collector; the sample cutting shovel is positioned at one end of the inner wall of the sampling collector; the needle sleeve is sleeved on the sampling collector; the cap is sleeved on the outer needle.

Preferably, the needle point of the inner needle is a triangular needle point, and a thread is arranged on the needle body of the inner needle.

Preferably, the outer needle is a tubular structure.

Preferably, the sample cutting shovel comprises a control wrench, a sample cutting shovel handle and a sample cutting shovel head; the sample cutting shovel head is connected with the control wrench through the sample cutting shovel handle; the control wrench bypasses the fixed shaft and is arranged at one end of the outer needle handle; the fixed shaft is arranged on the outer needle handle.

Preferably, the sample cutting shovel head is of a circular sheet structure, and the diameter of the circular sheet structure is the same as the inner diameter of the sampling collector.

Preferably, the sample cutting shovel handle is of a cylindrical structure, and the diameter of the cross section of the sample cutting shovel handle is 10% -15% of the inner diameter of the sampling collector.

Preferably, one side of the sampling push rod, which is close to the sample cutting shovel handle, is provided with an arc-shaped notch; the diameter of the circular arc-shaped notch is not smaller than the diameter of the cross section of the sample cutting shovel handle; the sample cutting shovel handle is arranged in a space formed by the arc-shaped notch and the inner wall of the sampling collector.

Preferably, a crescent-shaped seal is arranged on one side of the sampling collector, in which the sample cutting shovel is arranged.

Preferably, the inner end of the crescent seal is of a cambered surface structure; the included angle between the cambered surface structure and the inner wall of the sampling collector is 10-15 degrees.

Preferably, the sampling push rod is provided with scale marks.

Through the technical scheme, the needle point of the inner needle of the bone marrow puncture sampling device provided by the disclosure is a triangular needle point and is provided with threads, so that the inner needle can be screwed into a sampling part when in use, the pain of a patient is relieved, and the phenomenon of bone penetration easily caused by using the existing biopsy needle is reduced; meanwhile, a sample cutting shovel is arranged in the sampling collector, and when an operator performs bone marrow puncture sampling, the sample cutting shovel can slide into the track by operating the control wrench, so that the bone marrow sampling sample in the sampling collector is conveniently separated from bone marrow tissues in a patient; on one hand, the taken bone marrow sampling sample can be fixed and temporarily sealed, so that the loss of the bone marrow sampling sample is reduced.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic view of an overall device of one embodiment of a bone marrow aspiration sampling device of the present disclosure;

FIG. 2 is a partial schematic view of an embodiment of a bone marrow aspiration sampling apparatus of the present disclosure;

FIG. 3 is a partial schematic view of an embodiment of a bone marrow aspiration sampling apparatus of the present disclosure;

fig. 4 is a schematic view of the needle tip of an inner needle in one embodiment of the bone marrow aspiration sampling device of the present disclosure.

Reference numerals

1. Inner needle

2. External needle

3. Sampling push rod

4. Sampling collector

5. Inner needle handle

6. Outer needle handle

7. Control spanner

8. Sample cutting shovel handle

9. Sample cutting shovel head

10. Fixed shaft

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

The present disclosure relates to a marrow puncture sampling device, as shown in the attached figures 1-4, which is characterized in that the marrow puncture sampling device comprises an inner needle 1, an outer needle 2, a sample cutting shovel, a sampling push rod 3, a sampling collector 4, a needle base, a cover cap and a needle sleeve; the needle base comprises an inner needle handle 5 and an outer needle handle 6; the sampling collector 4 is sleeved on the sampling push rod 3; the inner needle 1 is connected with the inner needle handle 5 through the sampling push rod 3; the outer needle 2 is connected with the outer needle handle 6 through a sampling collector 4; the sample cutting shovel is positioned at one end of the inner wall of the sampling collector 4; the needle sleeve is sleeved on the sampling collector 4; the cap is sleeved on the outer needle 2.

According to the disclosure, the needle point of the inner needle 1 is a triangular needle point, and a thread is arranged on the needle body of the inner needle. When the bone marrow puncture sampling device is used, the inner needle can be screwed into the sampling part, so that the pain of a patient is relieved, and the phenomenon of bone penetration easily caused by using the existing biopsy needle is reduced

Preferably, the outer needle 2 is a tubular structure; the outer diameter of the inner needle 1 is slightly smaller than the inner diameter of the outer needle 2.

According to the present disclosure, the cutting blade includes a control wrench 7, a cutting blade handle 8, and a cutting blade head 9; the sample cutting shovel head is connected with the control wrench 7 through the sample cutting shovel handle 8; the control wrench 7 is arranged at one end of the outer needle handle 6 by bypassing the fixed shaft 10; the fixed shaft 10 is placed on the outer needle handle 6.

Preferably, the cutting shovel head 9 is a circular sheet structure, and the diameter of the circular sheet structure is the same as the inner diameter of the sampling collector 4.

Preferably, the sample cutting shovel handle 8 is a cylindrical structure, and the diameter of the cross section of the sample cutting shovel handle 8 is 10% -15% of the inner diameter of the sampling collector 4.

Preferably, one side of the sampling push rod 3, which is close to the sample cutting shovel handle 8, is provided with an arc-shaped notch; the diameter of the circular arc-shaped notch is not smaller than the diameter of the cross section of the sample cutting shovel handle 8; the sample cutting shovel handle 8 is arranged in a space formed by the arc-shaped notch and the inner wall of the sampling collector 4.

Preferably, a crescent-shaped seal is arranged on one side of the sampling collector 4, in which the sample cutting shovel is arranged.

Preferably, the inner end of the crescent seal is of a cambered surface structure; the included angle between the cambered surface structure and the inner wall of the sampling collector is 10-15 degrees. When carrying out the marrow puncture sample, operating personnel through operation control spanner, makes cut appearance shovel contact the cambered surface structure in the crescent seals to make and cut appearance shovel and slide into the track, seal sampling collector 4.

According to the present disclosure, the sampling push rod is provided with scale marks.

According to the disclosure, when an operator performs bone marrow puncture sampling, the inner needle 1 and the outer needle 2 are properly installed, the handle is tightly held, the inner needle 1 is screwed into a sampling part, and whether the inner needle 1 enters a bone marrow cavity or not is judged according to the reduction of resistance in the screwing process; bone marrow is collected by the left and right alternate half-rotation of the outer needle handle 6; in the sampling process, the length of the bone marrow sampling sample is judged by observing the scale marks on the sampling push rod 3 and the relative positions of the sampling push rod 3 and the sampling collector 4; after sampling, the control wrench 7 is operated to enable the sample cutting shovel handle 8 to drive the sample cutting shovel head 9 to slide into the track, so that a bone marrow sampling sample in the sampling collector 4 is separated from bone marrow tissues in a patient, the sampling collector 4 is sealed, the taken bone marrow sampling sample is fixed and temporarily sealed, and loss of the bone marrow sampling sample in the moving process is reduced.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The marrow puncture sampling device is characterized by comprising an inner needle (1), an outer needle (2), a sample cutting shovel, a sampling push rod (3), a sampling collector (4), a needle base, a cap and a needle sleeve; the needle base comprises an inner needle handle (5) and an outer needle handle (6); the sampling collector (4) is sleeved on the sampling push rod (3); the inner needle (1) is connected with the inner needle handle (5) through the sampling push rod (3); the outer needle (2) is connected with the outer needle handle (6) through a sampling collector (4); the sample cutting shovel is positioned at one end of the inner wall of the sampling collector (4); the needle sleeve is sleeved on the sampling collector (4); the cap is sleeved on the outer needle (2).

2. The bone marrow puncture sampling device according to claim 1, characterized in that the needle point of the inner needle (1) is a triangular needle point, and the needle body of the inner needle is provided with a thread.

3. The bone marrow aspiration sampling device according to claim 1, characterized in that the outer needle (2) is a tubular structure.

4. The bone marrow aspiration sampling device of claim 1, characterized in that the cutting shovel comprises a control wrench (7), a cutting shovel handle (8) and a cutting shovel head (9); the sample cutting shovel head (9) is connected with the control wrench (7) through the sample cutting shovel handle (8); the control wrench (7) bypasses the fixed shaft (10) and is arranged at one end of the outer needle handle (6); the fixed shaft (10) is arranged on the outer needle handle (6).

5. The bone marrow aspiration sampling device of claim 4, characterized in that the cutting shovel head (9) is a circular sheet structure with the same diameter as the inner diameter of the sampling collector (4).

6. The bone marrow puncture sampling device according to the claim 4, characterized in that, the cutting sample shovel handle (8) is a cylinder structure, the cross section diameter of the cutting sample shovel handle (8) is 10% -15% of the inner diameter of the sampling collector (4).

7. The bone marrow puncture sampling device according to any one of claims 4-6, characterized in that, one side of the sampling pushing rod (3) close to the cutting shovel handle (8) is provided with a circular arc notch; the diameter of the circular arc-shaped notch is not smaller than the diameter of the cross section of the sample cutting shovel handle (8); and the sample cutting shovel handle (8) is arranged in a space formed by the circular arc-shaped notch and the inner wall of the sampling collector (4).

8. The bone marrow puncture sampling device according to claim 1, characterized in that, the side of the sampling collector (4) where the cutting shovel is arranged is provided with a crescent-shaped seal.

9. The bone marrow puncture sampling device according to claim 8, wherein the inner end of the crescent-shaped seal is a cambered surface structure; the included angle between the cambered surface structure and the inner wall of the sampling collector is 10-15 degrees.

10. The bone marrow aspiration sampling device of claim 1, characterized in that the sampling pushing rod (3) is provided with scale marks.