Stem cell introduction device

Abstract

The utility model discloses a stem cell leading-in device which comprises a leading-in seat cylinder and a needle cylinder, a telescopic hole channel used for the needle cylinder to slide in a telescopic mode is formed in the leading-in seat cylinder, a limiting structure capable of moving and adjusting in the axial direction of the needle cylinder is arranged on the outer side of the end, penetrating out of the leading-in seat cylinder, of the needle cylinder, and a needle head is arranged at one end of the needle cylinder. A pipe joint is arranged at the other end of the needle cylinder; the needle cylinder can be guided and pushed in through the guide-in seat cylinder, and the puncturing depth is limited by the limiting structure and is determined by adjusting the position of the limiting sleeve on the needle cylinder. The overhead groove has the effect of tightening the skin around the skin at the insertion position, and pain caused by insertion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stem cell introduction, in particular to a stem cell introduction device. Background Art

[0002] The endometrium is the most active organ in the human body. It is divided into a functional layer and a basal layer. The former undergoes proliferation and secretion changes with the changes in estrogen and progesterone during the menstrual cycle; the latter repairs the wound surface and proliferates to form a new functional layer after the endometrium is shed during the menstrual period. The driving force behind this repair process of the endometrial wound surface during the menstrual period is the stem cells located in the basal layer of the endometrium. In the past, it was believed that damage and destruction of the basal layer of the endometrium were irreversible lesions that could cause amenorrhea and infertility in patients. In animal experiments, stem cells were injected into the intersection of the myometrium and the endometrium, and new endometrium was formed at the site of injury. Stem cells, as multipotent cells with the ability to self-replicate and direct differentiation, have opened up new ideas for the treatment of difficult human diseases. In the field of obstetrics and gynecology, for clinically difficult diseases such as thin endometrium, endometrial lesions or damage, the local introduction of stem cells is a new treatment method to improve the local environment of the endometrium and promote endometrial repair.

[0003] A stem cell introduction device with application number 201410469951.3 comprises a hollow outer sleeve, a hollow needle core and a hollow catheter; the outer sleeve is provided with a cursor that can move up and down along one side of the outer wall of the outer sleeve, and the other side of the outer wall of the outer sleeve is provided with a digital scale mark protruding from the surface of the outer wall, and when the cursor moves to the digital scale mark, the cursor is rotated so that the cursor is fixed between or on the digital scale mark; the head end of the needle core is provided with a spike portion;

[0004] However, during the process of stem cell introduction, it is difficult to control the depth of introduction because the introduction depth varies depending on the site of introduction of the stem cells. Utility Model Content

[0005] The purpose of the present invention is to solve the above problems and provide a stem cell introduction device to overcome the defects of the prior art, as described below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a stem cell introduction device, comprising an introduction seat tube and a syringe, wherein a telescopic channel for the syringe to telescope and slide therein is formed in the introduction seat tube, and a limiting structure capable of being moved and adjusted along the axial direction of the syringe is arranged on the outer side of one end of the syringe passing through the introduction seat tube, a needle is arranged at one end of the syringe, and a pipe joint is arranged at the other end of the syringe;

[0008] When the needle cylinder is located in the telescopic channel and moves, the limiting structure can cooperate with the end surface of the introduction seat cylinder to limit the insertion depth of the needle.

[0009] Preferably, the outer shape of the introduction seat cylinder is a frustum-shaped cone, and more than two gripping grooves are provided on the outer side of the introduction seat cylinder.

[0010] Preferably, an overhead groove is provided at the middle of the wide end of the introduction seat tube, and a gasket is provided at the end edge of the introduction seat tube close to the overhead groove.

[0011] Preferably, finger sleeves are fixedly provided on both sides of the narrow end of the introduction seat cylinder, and the outer contour of the finger sleeves is in a circular ring shape.

[0012] Preferably, a push handle is provided at one end of the syringe close to the pipe joint, and a length mark is provided on the outer side of the syringe along its axial direction.

[0013] Preferably, the limiting structure comprises a limiting sleeve, which is slidably mounted on the outside of the syringe, and a fixing bolt is threadedly connected to the limiting sleeve for achieving a tight abutment with the syringe.

[0014] Preferably, an observation groove for observing the length mark is provided on the outer side wall of the limit sleeve.

[0015] The beneficial effects are:

[0016] 1. The needle barrel can be guided and pushed in by the guide seat, and the insertion depth is limited by the limiting structure, and the insertion depth is determined by adjusting the position of the limiting sleeve on the needle barrel;

[0017] 2. The overhead groove tightens the skin around the insertion site, reducing the pain caused by insertion;

[0018] 3. In the process of guiding the needle cylinder by the introduction seat cylinder, the position of the introduction seat cylinder can be fixed by holding the groove and the finger sleeve, so that the introduction seat cylinder can play a better guiding role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 This utility model Figure 1 AA section view;

[0022] Figure 3This utility model Figure 1 Stereoscopic image of

[0023] Figure 4 This utility model Figure 3 A partial enlarged view of point B.

[0024] The description of the accompanying drawings is as follows: 1. Introduction seat cylinder; 101. Holding groove; 102. Telescopic channel; 103. Overhead slot; 104. Washer; 2. Syringe; 201. Push handle; 202. Length mark; 203. Needle; 204. Pipe joint; 3. Limiting structure; 301. Limiting sleeve; 302. Tightening bolt; 303. Observation slot; 4. Finger sleeve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 As shown, the utility model provides a stem cell introduction device, including an introduction seat cylinder 1 and a syringe 2. A telescopic channel 102 is formed in the introduction seat cylinder 1 for the syringe 2 to telescope and slide therein. The outer shape of the introduction seat cylinder 1 is in the shape of a truncated cone. When the wide end of the introduction seat cylinder 1 is pressed against the skin of the patient where the introduction is required, it is convenient for the operator to see. The outer side of the introduction seat cylinder 1 is provided with more than two gripping grooves 101. In practical applications, the gripping grooves 101 facilitate the gripping operation of the introduction seat cylinder 1. Since the introduction seat cylinder 1 is in the shape of a truncated cone as a whole, the outer contour is not convenient for gripping, and the gripping grooves 101 provide gripping points.

[0027] A limiting structure 3 which can be moved and adjusted along the axial direction of the syringe 2 is arranged on the outer side of one end of the syringe 2 passing through the introduction seat cylinder 1, a needle 203 is arranged at one end of the syringe 2, and a pipe joint 204 is arranged at the other end of the syringe 2; when the syringe 2 is located in the telescopic channel 102 and moves, the limiting structure 3 can cooperate with the end face of the introduction seat cylinder 1 to limit the insertion depth of the needle 203.

[0028] See the instruction manual Figure 2As shown, an overhead groove 103 is provided in the middle of the wide end of the introduction seat tube 1, and the overhead groove 103 plays a role in tightening the skin around the insertion site, reducing the pain caused by insertion, and a gasket 104 is provided at the edge of the end of the introduction seat tube 1 close to the overhead groove 103, and the gasket 104 can increase the friction with the skin and make the patient more comfortable. Finger sleeves 4 are fixedly provided on both sides of the narrow end of the introduction seat tube 1, and the outer contour of the finger sleeves 4 is in the shape of a circular ring.

[0029] The end of the syringe 2 near the pipe joint 204 is provided with a push handle 201, and the outer side of the syringe 2 is provided with a length mark 202 along its axial direction. Through the above specific structural design, the push handle 201 cooperates with the finger sleeve 4 to facilitate the advancement of the syringe 2 under the guidance of the introduction seat cylinder 1.

[0030] See the instruction manual Figure 4 As shown, the limiting structure 3 includes a limiting sleeve 301, which is slidably sleeved on the outer side of the syringe 2, and a fixing bolt 302 is threadedly connected to the limiting sleeve 301 for achieving a tight contact with the syringe 2. An observation groove 303 for observing the length mark 202 is provided on the outer wall of the limiting sleeve 301. Through the above-mentioned specific structural design, after the position of the limiting sleeve 301 is adjusted, the position of the limiting sleeve 301 can be fixed by the fixing bolt 302, thereby realizing the limit adjustment of the limiting sleeve 301.

[0031] Working principle:

[0032] The wide end of the introduction seat cylinder 1 is placed close to the patient's skin at the point where the introduction is required, and the insertion point of the needle 203 is located in the overhead groove 103. The overhead groove 103 tightens the skin around the insertion point to reduce the pain caused by insertion. In addition, during the insertion process, the syringe 2 moves in the telescopic channel 102, and the needle 203 penetrates into the patient's skin. The penetration depth is limited by the limiting structure 3, and the penetration depth is determined by the position adjustment of the limiting sleeve 301 on the syringe 2. After the introduction is completed, the syringe 2 can be removed from the introduction seat cylinder 1. In addition, during the guidance process of the introduction seat cylinder 1 to the syringe 2, the position of the introduction seat cylinder 1 can be fixed by holding the groove 101 and the finger sleeve 4, so that the introduction seat cylinder 1 can play a better guiding role.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A stem cell introduction device, characterized in that: The invention comprises an introduction seat cylinder (1) and a syringe (2), wherein a telescopic channel (102) is formed in the introduction seat cylinder (1) for the syringe (2) to telescope and slide therein, a limiting structure (3) capable of being moved and adjusted along the axial direction of the syringe (2) is arranged on the outer side of one end of the syringe (2) passing through the introduction seat cylinder (1), a needle (203) is arranged at one end of the syringe (2), and a pipe joint (204) is arranged at the other end of the syringe (2); When the needle cylinder (2) is located in the telescopic channel (102) and moves, the limiting structure (3) can cooperate with the end surface of the introduction seat cylinder (1) to limit the insertion depth of the needle head (203).

2. A stem cell introduction device according to claim 1, characterized in that: The outer shape of the introduction seat cylinder (1) is in the shape of a truncated cone, and the outer side of the introduction seat cylinder (1) is provided with more than two holding grooves (101).

3. A stem cell introduction device according to claim 2, characterized in that: An overhead groove (103) is provided at the middle of the wide end of the introduction seat cylinder (1), and a gasket (104) is provided at the end edge of the introduction seat cylinder (1) close to the overhead groove (103).

4. A stem cell introduction device according to claim 2, characterized in that: Finger sleeves (4) are fixedly arranged on both sides of the narrow end of the introduction seat cylinder (1), and the outer contour of the finger sleeves (4) is in the shape of a circular ring.

5. A stem cell introduction device according to claim 1, characterized in that: A push handle (201) is provided at one end of the syringe (2) close to the pipe joint (204), and a length mark (202) is provided on the outer side of the syringe (2) along its axial direction.

6. A stem cell introduction device according to claim 5, characterized in that: The limiting structure (3) comprises a limiting sleeve (301), the limiting sleeve (301) being slidably sleeved on the outside of the syringe (2), and a fixing bolt (302) being threadedly connected to the limiting sleeve (301) for achieving a fixing abutment with the syringe (2).

7. A stem cell introduction device according to claim 6, characterized in that: An observation slot (303) for observing the length mark (202) is provided on the outer side wall of the limiting sleeve (301).

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