CN215078988U

CN215078988U - Special injection suit for sampling joint cavity and injecting stem cells

Info

Publication number: CN215078988U
Application number: CN202120706368.5U
Authority: CN
Inventors: 王斌; 谢园园; 刘硕
Original assignee: Nanjing Drum Tower Hospital
Current assignee: Nanjing Drum Tower Hospital
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-10
Anticipated expiration: 2031-04-08

Abstract

The utility model relates to a joint chamber sample and special injection suit of stem cell injection, include: puncture needle, threaded bolt, three-way pipe, sampling switch, sampling pipe, sampling needle, infusion switch, infusion junction, filter membrane, cell infusion needle; the cell infusion device is characterized in that the puncture needle is connected with a three-way pipe through a threaded bolt, one end of the three-way pipe is connected with a sampling needle through a hose, a sampling switch is installed on the hose, the sampling needle can be inserted into the sampling pipe, the other end of the three-way pipe is connected with an infusion joint through the hose, the infusion switch is installed on the hose, the filter membrane is installed inside the infusion joint, and the cell infusion needle can be connected with the infusion joint. The utility model discloses a vacuum sampling pipe, it is convenient to absorb the sample, through setting up sampling switch and infusion switch for whole process is simple and convenient, avoids the possibility of pollution, through setting up the filter membrane, can filter the cell that probably gathers, avoids causing patient local discomfort.

Description

Special injection suit for sampling joint cavity and injecting stem cells

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a joint cavity sampling and stem cell injection special injection suit.

Background

Autologous bone marrow samples are prepared and processed in a GMP cell workshop, a certain number of BMMSCs are amplified, and prepared into cell suspensions to be transplanted to the local part of a joint cavity.

Before BMMSCs are transplanted, joint cavity effusion is generally collected at the local part of a joint cavity for sample collection before treatment, then stem cells are transplanted at the local part of the joint cavity, and the technology and the apparatus related to the sample collection and the stem cell transplantation are still blank at home and abroad at present. Most of the prior art uses a 10ml syringe for puncture, and after the syringe extracts a sample in a cavity, the sample is replaced by a cell suspension syringe for intra-articular injection. Because the space of the joint cavity is small, on one hand, the suction force is uneven due to manual sampling, the volume of the sample cannot be accurately controlled, and the cell suspension injector is replaced after sampling, so that the operation of medical personnel is not facilitated, the exposure time of the joint cavity is prolonged, and the risk of infection is caused; on the other hand, the cell suspension may be agglomerated during waiting for injection, and the direct injection into the local part may cause local discomfort in the joint cavity of the patient and affect the therapeutic effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical instrument technical field to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a joint cavity sampling and stem cell injection special-purpose injection set comprises: puncture needle, threaded bolt, three-way pipe, sampling switch, sampling pipe, sampling needle, infusion switch, infusion junction, filter membrane, cell infusion needle; the cell infusion device is characterized in that the puncture needle is connected with a three-way pipe through a threaded bolt, one end of the three-way pipe is connected with a sampling needle through a hose, a sampling switch is installed on the hose, the sampling needle can be inserted into the sampling pipe, the other end of the three-way pipe is connected with an infusion joint through the hose, the infusion switch is installed on the hose, the filter membrane is installed inside the infusion joint, and the cell infusion needle can be connected with the infusion joint.

The sampling switch and the infusion switch are both in a clamping state, the sampling needle is firstly punctured into the sampling tube, and the sampling switch is turned on to start sampling; immediately clamping the sampling switch after sampling, opening the infusion switch, and carrying out cell infusion through the infusion connection part by using a cell infusion needle.

The threaded bolt is detachable, so that the puncture needle and the three-way pipe can be tightly connected, and the transportation is convenient.

Wherein, be negative pressure in the sampling pipe, suction is even, makes things convenient for the sample.

Wherein the pore size of the filter membrane is 100 μm, and cells which may be accumulated can be filtered.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. one end of the joint cavity puncture needle is designed into a sampling needle which can be directly connected with the existing negative pressure sampling tube, so that the inconvenience of manually sucking a sample by using an injector in the prior art is solved, and the sample sampling volume difference caused by uneven suction is avoided;

2. the other end of the joint cavity puncture needle is designed into a model of a three-way pipe, a cell infusion pipeline is clamped before a sample is collected, a sampling pipeline can be directly clamped after the sample is collected, and then a cell infusion pipeline clamp is directly opened for cell infusion. The sampling switch is turned off in time, so that the influence on the subsequent detection effect caused by more or less samples is avoided, the whole process is simple and convenient, and the possibility of joint cavity and cell pollution caused by replacing the injector is avoided;

3. the 100-micron filter membrane is arranged at the joint of the cell infusion pipeline, so that cells which are possibly accumulated can be filtered, and the discomfort of a patient caused by infusion to the local part of the joint cavity is avoided.

Drawings

FIG. 1 is a drawing of the whole injection set of the present invention;

in fig. 1: 1-puncture needle; 2-a threaded bolt; 3-a three-way pipe; 4-a sampling switch; 5-a sampling tube; 6-sampling needle; 7-infusion switch; 8-infusion junction; 9-a filter membrane; 10-cell infusion needle.

Detailed Description

In order to understand the features and technical contents of the present invention in more detail, the following description is given in conjunction with the accompanying drawings, which are only used for reference and not for limiting the present invention.

Referring to fig. 1, the injection kit for sampling joint cavity and injecting stem cells comprises: the device comprises a puncture needle 1, a threaded bolt 2, a three-way pipe 3, a sampling switch 4, a sampling pipe 5, a sampling needle 6, an infusion switch 7, an infusion joint 8, a filter membrane 9 and a cell infusion needle 10; the puncture needle 1 is connected with a three-way pipe 3 through a threaded bolt 2, one end of the three-way pipe 3 is connected with a sampling needle 6 through a hose, a sampling switch 4 is installed on the hose, the sampling needle 6 can be inserted into a sampling pipe 5, the other end of the three-way pipe 3 is connected with an infusion joint 8 through a hose, an infusion switch 7 is installed on the hose, a filter membrane 9 is installed inside the infusion joint 8, and a cell infusion needle 10 can be connected with the infusion joint 8.

The sampling switch 4 and the infusion switch 7 are both in a clamping state, the sampling needle 6 is firstly punctured into the sampling tube 5, and the sampling switch 4 is opened to start sampling; after the sample is taken, the sampling switch 4 is clamped immediately, the infusion switch 7 is turned on, the cell infusion needle 10 is used for cell infusion through the infusion connection part 8, the sampling switch 4 is turned off in time, the problem that the subsequent detection effect is influenced due to the fact that more or less samples are taken is avoided, meanwhile, the whole process is simple and convenient, and the possibility of joint cavity and cell pollution caused by the replacement of an injector is avoided.

The threaded bolt 2 is detachable, so that the puncture needle 1 and the three-way pipe 3 can be tightly connected, and the transportation is convenient.

Wherein, be the negative pressure in the sampling pipe 5, solved the inconvenience that adopts the manual sample of absorbing of syringe among the prior art, avoided the inhomogeneous sample volume difference that arouses of suction.

Wherein, the aperture of the filter membrane 9 is 100 μm, which can filter out the cells which are possibly accumulated, and avoid the discomfort of the patient caused by the infusion to the local part of the joint cavity.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special injection suit of articular cavity sample and stem cell injection which characterized in that includes: the device comprises a puncture needle (1), a threaded bolt (2), a three-way pipe (3), a sampling switch (4), a sampling pipe (5), a sampling needle (6), an infusion switch (7), an infusion joint (8), a filter membrane (9) and a cell infusion needle (10); puncture needle (1) is connected with three-way pipe (3) through threaded bolt (2), three-way pipe (3) one end and sampling needle (6) pass through the hose connection, sampling switch (4) are installed on the hose, sampling needle (6) can pierce in sampling pipe (5), three-way pipe (3) other end and infusion junction (8) pass through the hose connection, infusion switch (7) are installed on the hose, filter membrane (9) are installed inside infusion junction (8), cell infusion needle (10) can be connected with infusion junction (8).

2. The set of claim 1, wherein the injection kit comprises: the sampling pipe (5) is under negative pressure.

3. The set of claim 1, wherein the injection kit comprises: the pore diameter of the filter membrane (9) is 100 mu m.