CN110448362A - A kind of hematology's marrow puncture needle - Google Patents

Abstract

The invention belongs to the technical field of puncture needles, in particular to a hematology bone marrow puncture needle, comprising a needle handle and a needle body below the needle handle. A connecting block is integrally formed on the lower surface of the needle handle, and the interior of the connecting block is screwed with threads. Sleeve, connecting rods are welded on both sides of the connecting block, a positioning ring is arranged on the outside of the needle body, the inner surface of the positioning ring is in contact with the surface of the needle body, and rotating blocks are welded on both sides of the positioning ring, and the rotating A connecting rod is arranged between the block and the connecting rod. During the use of the present invention, in the process of using the needle handle and the needle body to puncture the patient, a positioning ring is arranged on the outside of the needle body. When inside the human body, the positioning ring gradually moves up under the blocking action of the human skin surface. During this process, the inner surface of the positioning ring contacts the surface of the needle body, and the positioning ring is used to adjust the needle body about to enter the patient through the positioning ring. There is a certain limit at the position.

Description

A kind of hematology bone marrow puncture needle

technical field

The invention belongs to the technical field of puncture needles, and in particular relates to a bone marrow puncture needle of hematology department.

Background technique

Hematology is a branch of internal medicine that mainly treats problems of the hematopoietic system. Hematology can also provide professional services for many non-hematological hematological problems and conduct a number of technical tests. Aspirate is a common diagnostic technique for collecting bone marrow fluid. In clinical practice, bone marrow aspirate is also commonly used for morphological examination of blood cells, as well as for hematopoietic stem cell collection, culture, cytogenetic analysis, and pathogen biological examination. Generally, a hematology bone marrow puncture needle is used for the corresponding surgical operation, while the existing hematology bone marrow puncture needle in the process of using, due to the long length of the needle itself, penetrates the patient's epidermis to the internal bone marrow In the process of puncture, there is no good stable member for the needle body, so that the needle body of the hematology bone marrow puncture needle does not have good stability when used. To a certain extent, the operation efficiency is reduced, and the existing needle body and needle handle are mostly one-piece components, and there is no more adjustability, so it is impossible to make certain adjustments to the needle body according to the actual situation of the patient. The adjustment of the existing hematology bone marrow puncture needle has certain limitations in use.

SUMMARY OF THE INVENTION

In order to solve the problems raised in the above background art. The invention provides a hematology bone marrow puncture needle, which has the characteristics of more stable needle puncture process and certain adjustment ability.

In order to achieve the above purpose, the present invention provides the following technical solutions: a hematology bone marrow puncture needle, comprising a needle handle and a needle body below the needle handle, a connecting block is integrally formed on the lower surface of the needle handle, and the interior of the connecting block is screwed by a thread. A sleeve is connected, connecting rods are welded on both sides of the connecting block, a positioning ring is arranged on the outside of the needle body, the inner surface of the positioning ring is in contact with the surface of the needle body, and the rotating blocks are welded at the two sides of the positioning ring. A connecting rod is arranged between the rotating block and the connecting rod, one end of the connecting rod is connected with the rotating block through the rotating rod, the other end of the connecting rod is connected with a clamping block through the rotating shaft, and the clamping block is clamped to the inner connecting rod through the slider In the chute, buttons are arranged on both sides of the sleeve.

Preferably, the button is elastically connected to the sleeve through a spring, and fixed rods are provided on both sides of the needle body. The fixed rod and the needle body have an integrated structure.

Preferably, a square plate is clamped on one side of the inner bottom surface of the connecting rod, a second protrusion is glued above the square plate, a first protrusion is integrally formed on the lower surface of the clamping block, the first protrusion and the second protrusion are integrally formed. The protrusions are all elastic members.

Preferably, a limit button is provided at one side of the connecting block, the screw at one end of the limit button is screwed into the interior of the connecting block through threads, and the surface of the end of the limit button is in contact with the surface of the sleeve.

Preferably, a tension spring is provided between the clamping block and the inner wall of the connecting rod, one end of the tension spring is inserted into the interior of the clamping block, and the other end of the tension spring is inserted into the inner wall of the connecting rod.

Preferably, the radius of the hole matches the radius of the section of the button.

Compared with the prior art, the beneficial effect of the present invention is: in the process of using the present invention, in the process of using the needle handle and the needle body to puncture the patient, a positioning ring is arranged outside the needle body, and when the needle body is used for puncturing the patient When it is inserted into the human body, the positioning ring gradually moves up under the blocking action of the human skin surface. During this process, the inner surface of the positioning ring is in contact with the surface of the needle body. The internal position of the patient has a certain limiting effect to ensure that the entire needle can be punctured into the bone marrow more stably, thus solving the problem of the length of the original hematology bone marrow puncture needle, which causes the puncture process to be easily shifted and unstable. If the button on the outside of the sleeve is inserted into different holes on the fixing rod, the distance between the needle body and the sleeve can be quickly adjusted, so that the needle can be adjusted according to the actual situation of the patient. The puncture length of the body can be adjusted, which increases the practicability and rapid adjustment of the hematology bone marrow puncture needle.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the enlarged structural representation at A in Fig. 1;

Fig. 3 is the structural representation of the joint of the sleeve and the needle body in the present invention;

Fig. 4 is the enlarged structural representation at B in Fig. 3;

FIG. 5 is a schematic structural diagram of the interior of the connecting rod in the present invention.

In the picture: 1. Needle handle; 2. Sleeve; 3. Needle body; 4. Connecting block; 5. Connecting rod; 6. Connecting rod; 7. Positioning ring; 8. Turning block; 9. Limiting button; 10 11, button; 12, hole slot; 13, block; 14, first protrusion; 15, second protrusion; 16, tension spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

1-5, the present invention provides the following technical solutions: a hematology bone marrow puncture needle, comprising a needle handle 1 and a needle body 3 below the needle handle 1, and an engaging block 4 is integrally formed on the lower surface of the needle handle 1, The inside of the connecting block 4 is screwed with the sleeve 2, the two sides of the connecting block 4 are welded with connecting rods 5, the outside of the needle body 3 is provided with a positioning ring 7, and the inner surface of the positioning ring 7 is connected with the needle body 3. The surfaces are in contact with each other, and a rotating block 8 is welded at both sides of the positioning ring 7. A connecting rod 6 is arranged between the rotating block 8 and the connecting rod 5, and one end of the connecting rod 6 is connected with the rotating block 8 through the rotating rod. The other end of 6 is connected with a clamping block 13 through a rotating shaft. The clamping block 13 is clamped in the chute inside the connecting rod 5 through the slider. The two side surfaces of the sleeve 2 are provided with buttons 11. Through the corresponding auxiliary type stabilization structure , to ensure that the entire needle body 3 can be punctured into the bone marrow relatively stably, thereby solving the problem that the original hematology bone marrow puncture needle is easy to drift and unstable during use due to the length problem, and increases the hematology bone marrow puncture needle. practicality.

Specifically, the button 11 is elastically connected to the sleeve 2 through a spring, the fixing rods 10 are provided on both sides of the needle body 3 , the fixing rod 10 and the needle body 3 are integral structures, and several The hole and groove 12, so that the button 11 outside the sleeve 2 can be snapped into the different holes and grooves 12 on the fixing rod 10, so that the distance between the needle body 3 and the sleeve 2 can be quickly adjusted and fixed. According to the actual situation of the patient, the puncture length of the needle body 3 is adjusted, which increases the adjustability of the bone marrow puncture needle of the hematology department.

Specifically, a square plate is clamped on one side of the inner bottom surface of the connecting rod 5 , a second protrusion 15 is glued on the top of the square plate, and a first protrusion 14 is integrally formed on the lower surface of the clamping block 13 . Both the starter 14 and the second protrusion 15 are elastic members, and under the clamping action of the first protrusion 14 and the second protrusion 15, the clamping block 13 together with the connecting rod 6 has a good stabilization effect.

Specifically, a limit button 9 is provided at one side of the connecting block 4 , the screw at one end of the limit button 9 is screwed into the interior of the connecting block 4 through threads, and the surface of the end of the limit button 9 is in contact with the surface of the sleeve 2 Contact, the limit button 9 gives a certain stability to the connection between the sleeve 2 and the connecting block 4, which ensures that the sleeve 2 maintains a good fixation when the puncture needle is used.

Specifically, a tension spring 16 is provided between the clamping block 13 and the inner wall of the connecting rod 5 , one end of the tension spring 16 is inserted into the interior of the clamping block 13 , the other end of the tension spring 16 is inserted into the inner wall of the connecting rod 5 , and the tension spring 16 is inserted into the inner wall of the connecting rod 5 . 16 provides a certain elastic force for the movement of the clamping block 13. After the work is completed, the clamping block 13 can be quickly reset under the action of the tension spring 16 after the square plate is removed.

Specifically, the radius of the hole groove 12 matches the cross-sectional radius of the button 11, so that the button 11 can be normally snapped into the corresponding hole groove 12 under the elastic force of the spring, and the alignment between the sleeve 2 and the needle body 3 is completed. fixed connection.

The working principle and use process of the present invention: in the process of using the present invention, in the process of using the needle handle 1 and the needle body 3 to puncture the patient, the medical staff wants to love the part of the needle handle 1 in your hand, so that the needle body The bottom surface of 3 is in contact with the outer surface of the patient's puncture site, and a positioning ring 7 is provided outside the needle body 3. When the needle body 3 is inserted into the human body, the positioning ring 7 has a blocking effect on the human skin surface. The position of the needle body 3 that is about to enter the patient's interior has a certain limiting effect through the positioning ring 7, wherein The two ends of the positioning ring 7 are provided with rotating blocks 8, and a connecting rod 6 is arranged between the rotating block 8 and the connecting block 4. The connecting rod 6 cooperates with the upward movement of the positioning ring 7 and the lateral movement of the clamping block 13 in the connecting rod 5. , to ensure that the entire needle body 3 can be punctured into the bone marrow relatively stably, a second protrusion 15 is provided on one side of the inner bottom surface of the connecting rod 5, and both the second protrusion 15 and the first protrusion 14 are elastic members , when the clamping block 13 moves to a certain position, under the clamping action of the first protrusion 14 and the second protrusion 15, the clamping block 13 together with the connecting rod 6 has a good stabilization effect. The tension spring 16 is The movement of the block 13 provides a certain elastic effect, which solves the problem that the original hematology bone marrow puncture needle is easily deviated and unstable during the puncture process due to the length problem. Press inside, then move the needle body 3 up and down, move to a suitable position and let go, under the action of the spring, make the button 11 outside the sleeve 2 snap into the different holes 12 on the fixing rod 10, then Quickly adjust and fix the distance between the needle body 3 and the sleeve 2, so that the puncture length of the needle body 3 can be adjusted according to the actual situation of the patient, which ensures the normal and efficient bone marrow puncture work of the whole hematology department. conduct.

Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (6)

1. A hematology bone marrow puncture needle, comprising a needle handle (1) and a needle body (3) below the needle handle (1), characterized in that: an engaging block (4) is integrally formed on the lower surface of the needle handle (1). ), the inside of the connecting block (4) is screwed with the sleeve (2) through the thread, the connecting rods (5) are welded on both sides of the connecting block (4), and the outside of the needle body (3) is provided with a positioning ring ( 7), the inner surface of the positioning ring (7) is in contact with the surface of the needle body (3), the two sides of the positioning ring (7) are welded with rotating blocks (8), the rotating blocks (8) and the connecting rod (5) A connecting rod (6) is arranged between the connecting rods (6), one end of the connecting rod (6) is connected with the rotating block (8) through the rotating rod, and the other end of the connecting rod (6) is connected with a clamping block (13) through the rotating shaft. (13) The slider is clamped in the chute inside the connecting rod (5), and buttons (11) are provided on both side surfaces of the sleeve (2). 2. A hematology bone marrow puncture needle according to claim 1, characterized in that: the button (11) is elastically connected with the sleeve (2) through a spring, and fixed rods (10) are provided on both sides of the needle body (3). ), the fixing rod (10) and the needle body (3) have an integrated structure, and a plurality of holes and grooves (12) are provided on the surface of the fixing rod (10). 3. A hematology bone marrow puncture needle according to claim 1, characterized in that: a square plate is clamped on one side of the inner bottom surface of the connecting rod (5), and a second protrusion (15) is glued on the top of the square plate. ), a first protrusion (14) is integrally formed on the lower surface of the clamping block (13), and both the first protrusion (14) and the second protrusion (15) are elastic members. 4. A hematology bone marrow puncture needle according to claim 1, characterized in that: a limit button (9) is provided at one side of the connecting block (4), and the screw at one end of the limit button (9) is screwed through a thread Enter the interior of the engaging block (4) and the surface of the end of the limit button (9) is in contact with the surface of the sleeve (2). 5. A hematology bone marrow puncture needle according to claim 1, characterized in that: a tension spring (16) is provided between the clamping block (13) and the inner wall of the connecting rod (5), and one end of the tension spring (16) is inserted into The other end of the tension spring (16) is inserted into the inner wall of the connecting rod (5). 6 . The bone marrow puncture needle for hematology department according to claim 2 , wherein the radius of the hole groove ( 12 ) matches the cross-sectional radius of the button ( 11 ). 7 .