CN211674472U

CN211674472U - Multipurpose marrow puncture transfusion needle for war wound

Info

Publication number: CN211674472U
Application number: CN201922478595.2U
Authority: CN
Inventors: 曾忠友
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-16
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a war wound multipurpose marrow puncture transfusion needle, including outer tube and inner core needle, the outer tube front end is equipped with self tapping screw, and outer tube front end surface is equipped with at least one aperture, the outer tube tail end with shake hands and be connected, the middle part of shaking hands is equipped with the connector, the connector surface is equipped with the external screw thread, the connector is in on a straight line with the outer tube and is linked together with the outer tube, inner core needle front end is the toper structure, inner core needle end connection needle cover, the diameter of inner core needle is less than the aperture of outer tube, and the inner core needle passes through the connector and inserts in the outer tube, the needle cover with shake hands the external screw thread phase-match of last connector. After the multipurpose marrow puncture transfusion needle for war wounds of the utility model punctures and enters the bone end, the marrow puncture transfusion needle can be firmly fixed on the bone and is not easy to fall off, and marrow puncture sampling biopsy can be carried out; the front end of the outer sleeve is provided with at least one small hole, so that short-time, quick and large-scale blood transfusion and fluid transfusion can be realized.

Description

Multipurpose marrow puncture transfusion needle for war wound

Technical Field

The utility model relates to the field of medical appliances, in particular to a multipurpose marrow puncture transfusion needle for war wounds.

Background

The marrow puncture transfusion needle is a medical appliance which can be used for marrow puncture to extract marrow for pathological examination and can also be used for establishing a marrow channel for rapid blood transfusion and transfusion. The existing bone marrow transfusion needle in the market is inconvenient to hold and puncture, the tail end (an interface with a transfusion device) is easy to pollute during operation, the aseptic state is difficult to maintain, the existing bone marrow transfusion needle is difficult to effectively fix on a bone, the existing bone marrow transfusion needle is easy to fall off, the transfusion speed is limited, and rapid body fluid supplement cannot be carried out.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multipurpose marrow puncture transfusion needle for war wounds.

The utility model aims at solving the problems that the existing bone marrow transfusion needle in the market is inconvenient to grip and puncture, is easy to pollute during operation, is difficult to keep sterile state, is difficult to effectively fix on bones, is easy to drop, has limited transfusion speed and can not carry out quick body fluid supplement.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a war wound multipurpose marrow puncture transfusion needle, includes outer tube and inner core needle, the outer tube front end is equipped with self tapping screw, and outer tube front end surface is equipped with at least one aperture, the outer tube tail end with shake hands and be connected, the middle part of shaking hands is equipped with the connector, the connector surface is equipped with the external screw thread, the connector is in on a straight line with the outer tube and is linked together, inner core needle front end is the toper structure, inner core needle end connection needle lid, the diameter of inner core needle is less than the aperture of outer tube, and the inner core needle passes through the connector and inserts in the outer tube, the needle lid with shake hands the external screw thread phase-match of going.

Preferably, a needle seat is fixed in the needle cover, the tail end of the inner core needle is fixed on the needle seat, and the inner core needle is inserted into the outer sleeve through the connecting port and then the needle seat is positioned in the connecting port.

Preferably, the front end part of the outer sleeve is provided with a notch, the notch is matched with the conical structure at the front end of the inner core needle, and after the inner core needle is inserted into the outer sleeve and the needle cover is screwed with the connecting port, the conical structure at the front end of the inner core needle is just exposed out of the notch.

Preferably, the outer surface of the outer sleeve is provided with scale marks.

Preferably, the left side and the right side of the needle cover are provided with convex parts, and the left side and the right side of the connecting port are provided with concave parts matched with the convex parts of the needle cover.

Preferably, the outer sleeve has an inner diameter of 1.5mm and the inner core needle has a diameter of 1.0 mm.

Preferably, be equipped with two riser that the structure is the same in the needle lid, two riser are located the needle file left and right sides respectively, and riser top is equipped with the bump, and the bump is towards the needle file, the bump and shake hands the external screw thread phase-match of going up the connector.

The utility model has the advantages that: after the war wound multipurpose marrow puncture transfusion needle of the utility model punctures and enters the bone end, the marrow puncture transfusion needle can be firmly fixed on the bone due to the screw thread arranged at the front end of the outer sleeve, the fixation is firm, the stability is good, the dropping is not easy, and the marrow puncture sampling biopsy can be carried out; the front end of the outer sleeve is provided with at least one small hole, so that short-time, quick and large-scale blood transfusion and fluid transfusion can be realized. In addition, the arc-shaped large handle is suitable for the shape of a human hand, and the holding is comfortable and stable; the concave parts are arranged on the two sides of the connecting port, the convex parts are arranged on the two sides of the needle cover, namely, the needle cover is locked in the range of the concave parts, and the needle cover cannot be withdrawn, so that the inner core needle cannot be withdrawn when bone marrow puncture is carried out, the handle connecting port is well protected from being in a sterile state, an operator does not wear sterile gloves during puncture operation, the pollution of the handle connecting port cannot be caused, and the connecting port is in a sterile state and is suitable for being used in ordinary times or emergency situations; the external thread of the middle interface of the handle is matched with the internal thread of the transfusion device, and can be quickly connected with the universal disposable transfusion device on the market at present.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the inner core needle inserted into the outer sleeve.

Fig. 3 is a schematic structural view of the needle cover.

Detailed Description

The invention will be further described with reference to the following figures and examples:

as shown in the figure, provide the utility model discloses war wound multipurpose marrow puncture transfusion needle's embodiment, including outer tube 1 and inner core needle 2, 1 front end of outer tube is equipped with self tapping screw thread 3, and 1 front end surface of outer tube is equipped with at least one aperture 4, 1 tail end of outer tube is connected with 5 of shaking hands, and 5 middle parts of shaking hands are equipped with connector 6, and connector 6 surface is equipped with external screw thread 7, and connector 6 is in on a straight line and is linked together with outer tube 1, 2 front ends of inner core needle are toper structure 8, 2 end connection faller caps 9 of inner core needle, the diameter of inner core needle 2 is less than the aperture of outer tube 1, the internal diameter of outer tube 1 is 1.5mm, and the diameter of inner core needle 2 is 1.0 mm. The core needle 2 can be inserted into the outer cannula 1 through the connection port 6. The needle cover 9 is matched with the external thread of the connecting port 6 on the handle 5.

A needle seat 10 is fixed in the needle cover 9, the tail end of the inner core needle 2 is fixed on the needle seat 10, the inner core needle 2 is inserted into the outer sleeve 1 through the connecting port 6, and the needle seat 10 is positioned in the connecting port 6.

The front end part of the outer sleeve 1 is provided with a notch 11, the notch 11 is matched with the conical structure 8 at the front end of the inner core needle, and after the inner core needle 2 is inserted into the outer sleeve 1 and the needle cover 9 is screwed with the connecting port 6, the conical structure 8 at the front end of the inner core needle 2 just exposes out of the notch 11.

The outer surface of the outer sleeve 1 is provided with scale marks 12.

The left side and the right side of the needle cover 9 are provided with convex parts 13, and the left side and the right side of the connecting port 6 are provided with concave parts 14 matched with the convex parts 13 of the needle cover.

Be equipped with two riser 15 that the structure is the same in the needle lid 9, two riser 15 are located needle file 10 left and right sides respectively, and riser 15 top is equipped with bump 16, and bump 16 is towards the needle file, and bump 16 and the external screw thread 7 phase-match of connector on shaking hands, and external screw thread 7 is located between two bumps 16 promptly to this realizes screwing between needle lid 9 and the connector 6.

The external thread of the upper connector 6 on the handle is matched with the internal thread on the infusion set head, and can be quickly connected with a universal disposable infusion set on the market at present.

The using method comprises the following steps: the inner core needle 2 is inserted into the outer sleeve 1 through the connecting port 6, the convex parts 13 on the left side and the right side of the needle cover 9 are placed in the concave parts, then the needle cover 9 and the connecting port 6 are screwed through the internal thread on the needle cover 9 and the external thread on the connecting port 6 on the handle, at the moment, the conical structure 8 at the front end of the inner core needle 2 just exposes out of the notch 11, and the needle seat 10 is positioned in the connecting port 6. The combination of the outer cannula and the inner core needle can be used for bone marrow puncture. The conical design of the tip of the inner core needle enables the inner core needle to easily break through cortical bone of a bone and slowly screw into the medullary cavity. The self-tapping thread at the front end of the outer sleeve can firmly fix the bone marrow puncture transfusion needle on the bone and is not easy to fall off. After the puncture is finished, the inner core needle is pulled out, then the bone marrow can be extracted for bone marrow tissue examination, and the bone marrow can also be extracted for obtaining stem cells for transplantation. If blood transfusion and fluid infusion are required, the external thread of the connector on the handle is matched with the internal thread on the infusion head, and the connector can be quickly connected with a universal disposable infusion set on the market at present to carry out fluid infusion on patients; the small holes on the surface of the front end of the outer sleeve can accelerate the transfusion speed, realize the short-time mass blood transfusion and fluid transfusion, save the life and stabilize the vital signs. In addition, the concave parts are arranged on the two sides of the connecting port, the convex parts are arranged on the two sides of the needle cover, namely, the needle cover is locked in the range of the concave parts, the needle cover cannot be withdrawn, so that the inner core needle cannot be withdrawn during the bone marrow puncture, the handle connecting port is well protected, and an operator does not wear sterile gloves during the puncture operation, and the pollution to the handle connecting port cannot be caused, so that the connecting port is in a sterile state. The arc-shaped large handle is suitable for the shape of a human hand, and is comfortable and stable to hold.

The utility model discloses a war injury multipurpose marrow puncture transfusion needle be applicable to following situation: 1. puncturing the bone marrow to obtain bone marrow tissues or stem cells; 2. in severe war wounds or severe disasters, a large number of sick and wounded persons appear, and rapid blood transfusion and fluid infusion are needed to rescue lives; 3. blood transfusion and fluid infusion of patients with hemorrhagic shock with more blood loss and blood vessel collapse; 4. blood transfusion and fluid infusion for the elderly with fragile blood vessel and atrophy of blood vessel; 5. blood transfusion and fluid infusion for children with thin blood vessels. The multifunctional electric heating lamp is particularly suitable for being applied in complex environments such as moving, field and poor lighting conditions, has the advantages of good hand feeling, comfortable holding, simple, fast and efficient operation and the like, is firmly fixed and is not easy to shake or fall off.

Claims

1. The utility model provides a war wound multipurpose marrow puncture transfusion needle, includes outer tube and inner core needle, its characterized in that: the outer tube front end is equipped with self tapping screw thread, and outer tube front end surface is equipped with at least one aperture, the outer tube tail end with shake hands and be connected, the middle part of shaking hands is equipped with the connector, the connector surface is equipped with the external screw thread, the connector is in on a straight line with the outer tube and is linked together with the outer tube, the inner core needle front end is the toper structure, inner core needle end connection needle cover, the diameter of inner core needle is less than the aperture of outer tube, and the inner core needle passes through the connector and inserts in the outer tube, the needle cover with shake hands the external screw thread phase-match of.

2. The war wound multi-purpose bone marrow puncture transfusion needle of claim 1, characterized in that: a needle seat is fixed in the needle cover, the tail end of the inner core needle is fixed on the needle seat, and the inner core needle is inserted into the outer sleeve through the connector and then the needle seat is positioned in the connector.

3. The war wound multi-purpose bone marrow puncture transfusion needle of claim 1, characterized in that: the front end part of the outer sleeve is provided with a notch which is matched with the conical structure at the front end of the inner core needle, and after the inner core needle is inserted into the outer sleeve and the needle cover is screwed with the connecting port, the conical structure at the front end of the inner core needle is just exposed out of the notch.

4. The war wound multi-purpose bone marrow puncture transfusion needle of claim 1, characterized in that: and the outer surface of the outer sleeve is provided with scale marks.

5. The war wound multi-purpose bone marrow puncture transfusion needle of claim 1, characterized in that: convex parts are arranged on the left side and the right side of the needle cover, and concave parts matched with the convex parts of the needle cover are arranged on the left side and the right side of the connecting port.

6. The war wound multi-purpose bone marrow puncture transfusion needle of claim 1, characterized in that: the inner diameter of the outer sleeve is 1.5mm, and the diameter of the inner core needle is 1.0 mm.

7. The war wound multi-purpose bone marrow puncture transfusion needle of claim 2, characterized in that: be equipped with two riser that the structure is the same in the needle lid, two riser are located the needle file left and right sides respectively, and riser top is equipped with the bump, and the bump is towards the needle file, the bump and shake hands the external screw thread phase-match of going up the connector.