阅读说明：本技术 一种脑血管穿刺注射系统及其使用方法 (Cerebrovascular puncture injection system and using method thereof ) 是由 郭应坤 叶鹏飞 许华燕 文凌仪 谢林均 于 2020-05-15 设计创作，主要内容包括：本发明公开一种脑血管穿刺注射系统及其使用方法,包括：定位导丝、保护器、定位导管、穿刺针,所述穿刺针尖与穿刺导丝的远端连接,所述穿刺导丝设置在穿刺导管的管腔内；所述穿刺针包括穿刺导丝、穿刺导管、穿刺针尖；所述定位导丝和穿刺导丝近端均设有保护器,所述保护器分别与定位导丝、穿刺导丝可拆卸连接；所述穿刺针与穿刺导丝的远端连接；包括步骤：步骤1、定位；步骤2、穿刺。本发明可定位穿刺注射干细胞,治疗脑损伤,穿刺注射过程中保护血管壁,控制穿刺深度,提高了手术的安全性,有利于患者术后快速恢复。(The invention discloses a cerebrovascular puncture injection system and a using method thereof, wherein the cerebrovascular puncture injection system comprises the following steps: the puncture needle comprises a positioning guide wire, a protector, a positioning catheter and a puncture needle, wherein the puncture needle tip is connected with the distal end of the puncture guide wire, and the puncture guide wire is arranged in a lumen of the puncture catheter; the puncture needle comprises a puncture guide wire, a puncture catheter and a puncture needle tip; the protector is respectively detachably connected with the positioning guide wire and the puncture guide wire; the puncture needle is connected with the far end of the puncture guide wire; the method comprises the following steps: step 1, positioning; and 2, puncturing. The invention can position the puncture injection stem cell, treat the brain injury, protect the vessel wall in the process of puncture injection, control the puncture depth, improve the safety of the operation and be beneficial to the rapid recovery of the patient after the operation.)

1. A cerebral vascular puncture injection system, comprising: a positioning guide wire (1), a protector (2), a positioning catheter (3) and a puncture needle (4); the puncture needle (4) comprises a puncture guide wire (401), a puncture catheter (402) and a puncture needle tip (403), the puncture needle tip (403) is connected with the far end of the puncture guide wire (401), and the puncture guide wire (401) is arranged in a lumen of the puncture catheter (402); the protector (2) is arranged at the near end of each of the positioning guide wire (1) and the puncture guide wire (401), and the protector (2) is detachably connected with the positioning guide wire (1) and the puncture guide wire (401) respectively; the puncture needle (403) is connected with the distal end of the puncture guide wire (401).

2. The cerebrovascular puncture injection system according to claim 1, wherein: the protector (2) comprises a display screen (201), a control unit (202), a displacement sensor (203) and a safety lock card (204), wherein the displacement sensor (203) is electrically connected with the display screen (201) and the safety lock card (204) respectively, and the safety lock card (204) is electrically connected with the control unit (202).

3. The cerebrovascular puncture injection system according to claim 1, wherein: the diameter of the positioning catheter (3) is larger than that of the puncture catheter (402), the diameter of the positioning guide wire (1) is smaller than that of the positioning catheter (3), and the diameter of the puncture guide wire (401) is smaller than that of the puncture catheter (402).

4. The cerebrovascular puncture injection system according to claim 1, wherein: the diameter of the positioning catheter (3) is smaller than the diameter of the cerebral blood vessel.

5. The cerebrovascular puncture injection system according to claim 1, wherein: the positioning catheter (3) and the puncture catheter (402) are both soft catheters.

6. The cerebrovascular puncture injection system according to claim 1, wherein: the length of the positioning guide wire (1) is greater than that of the positioning catheter (3), the length of the puncture guide wire (401) is greater than that of the puncture catheter (402), and the length of the puncture catheter (402) is greater than that of the positioning catheter (3).

7. The cerebrovascular puncture injection system according to claim 1, wherein: the puncture needle point (403) is made of hard metal material.

8. The cerebrovascular puncture injection system according to claim 1, wherein: the proximal ends of the positioning catheter (3) and the puncture catheter (402) are provided with quick connectors (5).

9. The method of using the cerebral vascular puncture injection system according to any one of claims 1 to 8, comprising the steps of:

step 1, positioning, namely enabling a positioning guide wire (1) to penetrate through a protector (2), monitoring the entering length of the positioning guide wire (1) by a displacement sensor (203) in the protector (2), placing the positioning guide wire (1) into a positioning catheter (3), enabling the positioning guide wire (1) to control the positioning catheter (3) to travel to a position needing puncture injection along a cerebral blood vessel, and taking out the positioning guide wire (1); the display screen (201) on the protector (2) can read the entering length of the positioning guide wire (1); the safety guide wire length is preset in the protector (2), when the length of the positioning guide wire (1) entering the cerebral vessels reaches the safety guide wire length, a safety lock (204) in the protector (2) can automatically lock the positioning guide wire (1), and the locking state can be released by pressing the control unit (202);

step 2, puncture, a puncture guide wire (401) penetrates through a protector (2), a displacement sensor (203) inside the protector (2) monitors the entering length of the puncture guide wire (401), the puncture guide wire (401) is placed into a puncture catheter (402), the puncture catheter (402) runs to a position needing puncture along a pipeline of a positioning catheter (3), a puncture needle point (403) is pushed out for puncture, the safety guide wire length is preset in the protector (2), when the length of the puncture guide wire (401) entering a cerebral blood vessel reaches the safety guide wire length, a safety locking card (204) inside the protector (2) can automatically lock the puncture guide wire (401), and the locking state can be released by pressing a control unit (202).

Technical Field

The invention relates to the field of medical apparatus and instrument research, in particular to a cerebral vascular puncture injection system and a using method thereof.

Background

With the development of research, the stem cell transplantation for treating brain injury achieves better results in animal experiments and clinical research.

Once human beings suffer from diseases such as cerebral hemorrhage, cerebral infarction, cerebral trauma and the like, the injured brain tissue is irreversible, and serious sequelae are remained.

At present, when stem cells are used for treating diseases such as cerebral hemorrhage, cerebral infarction, cerebral trauma and the like, a set of puncture injection system is needed to ensure the safety of operation implementation and operation.

Disclosure of Invention

The invention aims to provide a cerebrovascular puncture injection system and a using method thereof, which can position, puncture and inject stem cells, treat brain injury, protect blood vessel walls in the process of puncture and injection, control puncture depth, improve the safety of operation and be beneficial to the quick recovery of patients after the operation.

To achieve the above object, the present invention provides a cerebral vascular puncture injection system, comprising: the puncture needle comprises a positioning guide wire, a protector, a positioning catheter and a puncture needle, wherein the puncture needle tip is connected with the distal end of the puncture guide wire, and the puncture guide wire is arranged in a lumen of the puncture catheter; the puncture needle comprises a puncture guide wire, a puncture catheter and a puncture needle tip; the protector is respectively detachably connected with the positioning guide wire and the puncture guide wire; the puncture needle is connected with the far end of the puncture guide wire.

Preferably, the protector comprises a display screen, a control unit, a displacement sensor and a safety lock card, wherein the displacement sensor is electrically connected with the display screen and the safety lock card respectively, and the safety lock card is electrically connected with the control unit.

Preferably, the diameter of the positioning catheter is larger than that of the puncture catheter, the diameter of the positioning guide wire is smaller than that of the positioning catheter, and the diameter of the puncture guide wire is smaller than that of the puncture catheter.

Preferably, the positioning catheter has a diameter smaller than the diameter of the cerebral blood vessel.

Preferably, the positioning catheter and the puncture catheter are both soft catheters.

Preferably, the length of the positioning guide wire is greater than that of the positioning catheter, the length of the puncture guide wire is greater than that of the puncture catheter, and the length of the puncture catheter is greater than or equal to that of the positioning catheter.

Preferably, the piercing tip is a hard metal material.

Preferably, the proximal ends of the positioning catheter and the puncture catheter are provided with quick connectors.

Further, a method of using the cerebral vascular puncture injection system, comprising the steps of:

step 1, positioning, namely enabling a positioning guide wire to penetrate through a protector, monitoring the entering length of the positioning guide wire by a displacement sensor in the protector, placing the positioning guide wire into a positioning catheter, enabling the positioning guide wire to control the positioning catheter to travel to a position needing puncture injection along a cerebral blood vessel, and taking out the positioning guide wire; the display screen on the protector can read the entering length of the positioning guide wire; the safety guide wire length is preset in the protector, when the length of the positioning guide wire entering the cerebral vessels reaches the safety guide wire length, the safety lock card in the protector can automatically lock the positioning guide wire, and the locking state can be released by pressing the control unit;

and 2, puncturing, namely enabling the puncture guide wire to penetrate through the protector, monitoring the entering length of the puncture guide wire by a displacement sensor in the protector, placing the puncture guide wire into the puncture guide tube, enabling the puncture guide tube to run to a position needing puncturing along a positioning guide tube pipeline, pushing out a puncture needle point for puncturing, presetting the length of the safety guide wire in the protector, automatically locking the puncture guide wire by a safety locking card in the protector when the length of the puncture guide wire entering a cerebral blood vessel reaches the length of the safety guide wire, and releasing the locking state by pressing a control unit.

The invention has the following beneficial effects:

1. the invention can position, puncture and inject stem cells to treat brain injury;

2. the blood vessel wall is protected in the puncture injection process, the puncture depth is controlled, and the safety of the operation is improved;

3. is favorable for the postoperative quick recovery of patients.

Drawings

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

FIG. 2 is a schematic view of the positioning catheter of the present invention engaged with a positioning guidewire;

FIG. 3 is a schematic structural view of the protector;

FIG. 4 is a schematic view of the structure of the puncture needle;

in the figure: 1-positioning guide wire, 2-protector, 201-display screen, 202-control unit, 203-displacement sensor, 204-safety lock card, 3-positioning catheter, 4-puncture needle, 401-puncture guide wire, 402-puncture catheter, 403-puncture needle point and 5-quick connector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.

The invention relates to a cerebral vessel puncture injection system, comprising: a positioning guide wire 1, a protector 2, a positioning catheter 3 and a puncture needle 4; the puncture needle 4 comprises a puncture guide wire 401, a puncture catheter 402 and a puncture needle tip 403, the puncture needle tip 403 is connected with the distal end of the puncture guide wire 401, and the puncture guide wire 401 is arranged in the lumen of the puncture catheter 402; the protector 2 is arranged at the near ends of the positioning guide wire 1 and the puncture guide wire 401, and the protector 2 is detachably connected with the positioning guide wire 1 and the puncture guide wire 401 respectively; the puncture needle 403 is connected to the distal end of the puncture guide wire 401.

Preferably, the protector 2 includes a display screen 201, a control unit 202, a displacement sensor 203 and a security lock card 204, the displacement sensor 203 is electrically connected to the display screen 201 and the security lock card 204, respectively, and the security lock card 204 is electrically connected to the control unit 202.

Preferably, the diameter of the positioning catheter 3 is larger than that of the puncture catheter 402, the diameter of the positioning guide wire 1 is smaller than that of the positioning catheter 3, and the diameter of the puncture guide wire 401 is smaller than that of the puncture catheter 402.

Preferably, the positioning catheter 3 has a diameter smaller than the diameter of the cerebral vessels.

Preferably, the positioning catheter 3 and the puncture catheter 402 are both soft catheters.

Preferably, the length of the positioning guide wire 1 is greater than that of the positioning catheter 3, the length of the puncture guide wire 4 is greater than that of the puncture catheter 402, and the length of the puncture catheter 402 is greater than or equal to that of the positioning catheter 3.

Preferably, the piercing tip 403 is a hard metal material.

Preferably, the proximal ends of the positioning catheter 3 and the puncture catheter 402 are provided with quick connectors 5.

Further, a method of using the cerebral vascular puncture injection system, comprising the steps of:

step 1, positioning, namely enabling a positioning guide wire 1 to penetrate through a protector 2, monitoring the entering length of the positioning guide wire 1 by a displacement sensor 203 in the protector 2, placing the positioning guide wire 1 into a positioning catheter 3, enabling the positioning guide wire 1 to control the positioning catheter 3 to travel to a position needing puncture injection along a cerebral blood vessel, and taking out the positioning guide wire 1; the display screen 201 on the protector 2 can read the entry length of the positioning guide wire 1; the protector 2 is preset with the length of the safety guide wire, when the length of the positioning guide wire 1 entering the cerebral vessels reaches the length of the safety guide wire, the safety lock 204 in the protector 2 can automatically lock the positioning guide wire 1, and the locking state can be released by pressing the control unit 202;

step 2, puncturing, enabling the puncture guide wire 4 to penetrate through the protector 2, monitoring the entering length of the puncture guide wire 401 by a displacement sensor 203 in the protector 2, placing the puncture guide wire 401 into a puncture catheter 402, enabling the puncture catheter 402 to run to a position needing puncturing along a positioning catheter 3 pipeline, pushing out a puncture needle point 403 for puncturing, presetting the safe guide wire length in the protector 2, when the length of the puncture guide wire 401 entering blood vessels reaches the safe guide wire length, automatically locking the puncture guide wire 401 by a safe locking card 204 in the protector 2, and pressing down the control unit 202 to release the locking state.