CN210644081U

CN210644081U - Spinal cord stem cell microinjection device

Info

Publication number: CN210644081U
Application number: CN201921091458.7U
Authority: CN
Inventors: 朱辉; 乌胜平; 刘艳生
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-02
Anticipated expiration: 2029-07-12

Abstract

A spinal cord stem cell micro-injection device is mainly applied to the technical field of spinal cord stem cell transplantation and comprises a needle cylinder, a pintle, an infusion needle tube, a needle handle and a needle head, wherein the top of the pintle is detachably connected with a balancing weight; the infusion needle tube is detachably connected with the needle tube, planes are arranged on two sides of a connector of the infusion needle tube, and annular bulges are arranged at two ends of each plane; the needle handle is provided with a widened and thickened needle head fixing part, the top of the needle head fixing part is provided with a platform, the top of the platform is provided with a control rod, and the tail end of the control rod is provided with a handle; the needle fixing part is fixedly provided with a needle. Use the utility model relates to a spinal cord stem cell microinjection device, simple structure, convenient to use, low cost, treatment is effectual, has reduced the waste of stem cell.

Description

Spinal cord stem cell microinjection device

Technical Field

The utility model relates to a spinal cord stem cell transplantation technical field, concretely relates to spinal cord stem cell microinjection device.

Background

The stem cells have the prospect of treating spinal cord injury, and currently, a plurality of clinical trials are in progress and show certain curative effect. Therefore, stem cell therapy for spinal cord injury is not remotely inaccessible.

Spinal cord injury (spinal cord injury) refers to spinal cord injury caused by external direct or indirect factors, with corresponding changes in various motor, sensory and sphincter dysfunctions, dystonia, pathological reflexes, etc., occurring at the corresponding segment of the injury. The extent and clinical manifestations of spinal cord injury depend on the site and nature of the primary injury, with symptoms becoming more severe the more upward. Common factors causing spinal cord injury include traffic accidents, sports injuries, accidental falls, crime injuries and the like.

The spinal cord stem cells are injected to the injury position through a micro-injector to achieve the aim of treating spinal cord injury. The traditional microsyringe is difficult to adapt to spinal cord stem cell microinjection and has 2 main reasons: 1. the traditional micro-syringe needle and the syringe are integrated, the spinal cord stem cell transplantation is usually operated aiming at the deep tissues of the spine, the spinal canal of the spine is firm, the integrated structure is very inconvenient to operate, and the spinal canal of the spine is hard to pierce; 2. the traditional microinjector can not control the injection speed, and the accuracy of the injection amount is poor, thereby causing the waste of stem cells.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spinal cord stem cell microinjection device after the inventor gathers a large amount of experiences in practice to the defect that traditional microinjector exists in spinal cord stem cell transplantation.

The technical scheme of the utility model is that: a spinal cord stem cell micro-injection device comprises a needle cylinder, a pintle, an infusion needle tube, a needle handle and a needle head, wherein the top of the pintle is detachably connected with a balancing weight; the infusion needle tube is detachably connected with the needle tube, planes are arranged on two sides of a connector of the infusion needle tube, and annular bulges are arranged at two ends of each plane; the needle handle is provided with a needle head fixing part, the top of the needle head fixing part is provided with a platform, the top of the platform is provided with a control rod, and the tail end of the control rod is provided with a handle; the needle fixing part is fixedly provided with a needle.

Preferably, the needle cylinder is provided with three kinds of needle plugs with different masses, namely 0.5g, 0.75g and 1.0 g.

Preferably, the balancing weight is made of a magnetic material and is magnetically connected with the pintle.

Preferably, the control rod length is 100 mm.

Preferably, the outer edge of the handle is provided with anti-slip lines.

Preferably, an arc-shaped chamfer is arranged at the joint of the needle fixing part and the platform.

The utility model discloses the technical problem that will solve is: the spinal cord stem cell microinjection device is provided, the balancing weight is combined with the pintle, the balancing weight and the pintle slide downwards slowly under the action of gravity, and the problem that the injection speed is difficult to control is solved in the simplest mode; the widened and thickened needle fixing part enables the needle to have stronger piercing force and easily pierce the vertebral canal of the spine; the control rod facilitates the control of a user on the needle handle, reduces the risk of operation failure, and improves the treatment quality of spinal cord stem cell transplantation.

The utility model has the advantages that: the spinal cord stem cell microinjection device has the advantages of simple structure, convenience in use, low cost and good treatment effect, and reduces the waste of stem cells.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is an enlarged view of a portion B of FIG. 2;

FIG. 5 is an enlarged view of a portion C of FIG. 2;

in the figure, 100-syringe, 200-pintle, 201-counterweight, 300-infusion needle tube, 301-plane, 302-annular bulge, 400-needle handle, 401-needle fixing part, 402-platform, 403-control rod, 404-handle and 500-needle.

Detailed Description

The utility model discloses a concrete implementation way does: as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a spinal cord stem cell microinjection device comprises a syringe 100, a pintle 200, an infusion needle tube 300, a needle handle 400 and a needle 500, wherein the top of the pintle 200 is detachably connected with a balancing weight 201; the infusion needle tube 300 is detachably connected with the needle cylinder 100, planes 301 are arranged on two sides of a connector of the infusion needle tube 300, and annular bulges 302 are arranged at two ends of each plane 301; the needle handle 400 is provided with a needle fixing part 401, the top of the needle fixing part 401 is provided with a platform 402, the top of the platform 402 is provided with a control rod 403, and the tail end of the control rod 403 is provided with a handle 404; the needle fixing part 401 is fixedly provided with a needle 500. The utility model discloses a use method: when the device is used, a micro-syringe is used for extracting a certain amount of stem cell suspension, then the infusion needle tube 300 is installed, air in the tube is exhausted, one hand holds the handle 404 of the control rod 403, the other hand holds the bottom of the platform 402 to push the control rod 403, the needle fixing part 401 is of a widened and thickened structure, the strength is higher, the needle 500 is not easy to bend, finally, the needle 500 accurately pierces the planting part of the spinal cord, the balancing weight 201 with proper weight is selected according to the resistance of the injection part, the needle cylinder 100 is obliquely or vertically placed, the pintle 200 with the balancing weight 201 is slowly injected into the stem cell suspension at a constant speed by utilizing gravity, and after the needle 500 is pulled out, hemostatic cotton covers the needle hole to prevent the stem cell suspension from overflowing.

Specifically, as shown in fig. 1 and 2, the syringe 100 is provided with three kinds of pintle 200 of different mass, i.e., 0.5g, 0.75g, and 1.0 g. The pintle 200 with proper weight is selected according to the resistance of the injection part, so that the treatment effect of the spinal cord stem cell transplantation operation is improved.

Specifically, as shown in fig. 1 and 2, the weight member 201 is made of a magnetic material and is magnetically connected to the pintle 200. The magnetic material is convenient for the balancing weight 201 and the pintle 200 to be connected and detached, and the balancing weight 201 and the pintle 200 can be repeatedly used after being sterilized.

Specifically, as shown in fig. 1 and 2, the length of the control rod 403 is 100 mm. The spinal stem cell transplantation operation is often performed for tissue deep in the spinal cord, and the control rod 403 makes it convenient for a user to perform detailed operation on the needle handle 400.

Specifically, as shown in fig. 2, the outer edge of the handle 404 is provided with anti-slip lines. The anti-slip threads allow a user to obtain sufficient friction when wearing gloves, allowing the user to more effectively control the needle shaft 400.

Specifically, as shown in fig. 1, an arc-shaped chamfer is arranged at the joint of the needle fixing part 401 and the platform 402. The arc-shaped chamfer facilitates the gripping of the needle handle 400 by the fingers of the user.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a spinal cord stem cell microinjection device, includes cylinder (100), pintle (200), infusion needle tubing (300), needle handle (400), syringe needle (500), its characterized in that: the top of the pintle (200) is detachably connected with a balancing weight (201); the infusion needle tube (300) is detachably connected with the needle tube (100), two sides of a connector of the infusion needle tube (300) are provided with planes (301), and two ends of each plane (301) are provided with annular bulges (302); the needle handle (400) is provided with a needle fixing part (401), the top of the needle fixing part (401) is provided with a platform (402), the top of the platform (402) is provided with a control rod (403), and the tail end of the control rod (403) is provided with a handle (404); the needle fixing part (401) is fixedly provided with a needle (500).

2. The spinal cord stem cell microinjection apparatus according to claim 1, wherein: the needle cylinder (100) is provided with three kinds of pintle (200) with different masses, namely 0.5g, 0.75g and 1.0 g.

3. The spinal cord stem cell microinjection apparatus according to claim 1, wherein: the balancing weight (201) is made of a magnetic material and is magnetically connected with the pintle (200).

4. The spinal cord stem cell microinjection apparatus according to claim 1, wherein: the length of the control rod (403) is 100 mm.

5. The spinal cord stem cell microinjection apparatus according to claim 1, wherein: the outer edge of the handle (404) is provided with anti-slip lines.

6. The spinal cord stem cell microinjection apparatus according to claim 1, wherein: an arc-shaped chamfer is arranged at the joint of the needle fixing part (401) and the platform (402).