CN215875724U - Dialysis trocar capable of preventing blood from overflowing - Google Patents

Abstract

The utility model discloses a dialysis trocar capable of preventing blood from overflowing, which comprises a hose, wherein one end of the hose is communicated with a soft needle head, a metal needle head is in clearance fit with the inner wall of the soft needle head, the outer wall of the metal needle head is in clearance fit with the inner wall of the hose, a pipe clamp is arranged on the outer wall of the hose, and one end of the hose, far away from the soft needle head, is connected with a cover body. This prevent excessive dialysis trocar of blood, the global design thinking is clear and definite, the solution problem is effective, the utensil has good practicality and creativity, be suitable for using widely, its specific beneficial effect is as follows, through the hose, the pipe clamp, the lid, the cooperation between silica gel pad and the absorption ring, can seal the hose, and seal the lid automatically, blood excessive condition when avoiding taking out the metal syringe needle, a small amount of blood can effectually absorb, and when with other external tube coupling, can be convenient seal the hose, guarantee that blood can not be excessive this moment, avoid causing pollution and medical risk.

Description

Dialysis trocar capable of preventing blood from overflowing

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a dialysis trocar capable of preventing blood from overflowing.

Background

The blood purification treatment is a treatment technology for correcting internal environmental disorders by using a purification device to clear in-vivo metabolites, abnormal plasma components and drugs or toxicants accumulated in the body in an extracorporeal circulation manner. The blood purification comprises hemodialysis, hemofiltration, hemoperfusion, plasma replacement, immunoadsorption and the like, is widely applied to treatment of kidney diseases, liver diseases, blood diseases, critical patients and the like, and achieves better effect. In recent years, as technology is continuously improved, a new technology developed on the model plasma separation technology, namely double filtration plasma replacement therapy (DFPP), is developed. DFPP is a selective plasma separation therapy which achieves the purpose of treating diseases by carrying out secondary membrane separation on pathogenic plasma after primary membrane separation and then infusing the plasma after removing pathogenic factors and blood visible components back to the body together. The technology has the characteristics of high safety, wide application range, less loss of nutrient substances, less use amount of blood plasma and the like compared with a mode plasma replacement method. At present, the compound has become an important means for preventing and treating diseases in multiple clinical subjects. Clinically, patients with hyperlipidemia generally have a satisfactory level of pathogenic substances after a single treatment with DFPP in a short period of time. Blood purification treatment is more common in this center with temporary central venous indwelling dialysis catheters as extracorporeal circulation pathways. But according to the individual peripheral vascular condition and treatment scheme of the patient, the peripheral indwelling dialysis trocar is determined to be innovatively adopted as an extracorporeal circulation path, and the method is used for pulling immediately, so that the wound of the patient is reduced, and the comfort level of the patient is increased.

The problem of blood overflow easily appears in the current dialysis trocar use, and then causes pollution and medical risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dialysis trocar capable of preventing blood from overflowing, which aims to solve the problems that the existing dialysis trocar is easy to cause the blood overflowing in the using process, and further causes pollution and medical risks.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prevent excessive dialysis trocar of blood, includes the hose, the one end intercommunication of hose has soft syringe needle, the inner wall clearance fit of soft syringe needle has the metal syringe needle, the outer wall of metal syringe needle and the inner wall clearance fit of hose, the outer wall of hose is equipped with the pipe clamp, the one end that soft syringe needle was kept away from to the hose is connected with the lid, the inner wall of lid and the outer wall clearance fit of metal syringe needle, the inner wall equidistance of lid is embedded to have the silica gel pad, the one end that soft syringe needle was kept away from to the lid inner wall is embedded to have the absorption circle, absorption circle and silica gel pad all with the outer wall interference fit of metal syringe needle.

Preferably, the two ends of the pipe clamp are of buckle structures, and the two ends are mutually matched.

Preferably, the hose is in threaded connection with the cover body.

Preferably, the outer wall of one end of the metal needle far away from the soft needle is communicated with a handle, and a blood return cavity is formed between the handle and the metal needle.

Preferably, the handle is close to one side inner wall clearance fit of metal syringe needle and has the protecting tube, the inner wall fixedly connected with rubber tube of protecting tube, the inner wall of rubber tube and the outer wall interference fit of metal syringe needle, and the protecting tube agrees with each other with the lid.

Compared with the prior art, the utility model has the beneficial effects that: this prevent excessive dialysis trocar of blood, the overall design thinking is clear and definite, and the solution problem is effective, and the utensil has good practicality and creativity, is suitable for using widely, and its specific beneficial effect is as follows:

through the cooperation between hose, pipe clamp, lid, silica gel pad and the absorption circle, can seal the hose to seal the lid automatically, blood excessive condition when avoiding taking out the metal syringe needle, a small amount of blood can effectually absorb, and when with other tube coupling in the external world, can be convenient seal the hose, guarantee that blood can not be excessive this moment, avoid causing pollution and medical risk.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is an exploded view of the present invention.

In the figure: 1. the blood return protective device comprises a hose, 2 a soft needle head, 3 a pipe clamp, 4 a metal needle head, 5 a handle, 6 a blood return cavity, 7 a protective pipe, 8 a rubber pipe, 9 a cover body, 10 a silica gel pad, 11 and an absorption ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a dialysis trocar for preventing blood overflow comprises a hose 1, one end of the hose 1 is communicated with a soft needle 2, the inner wall of the soft needle 2 is in clearance fit with a metal needle 4, the metal needle 4 is responsible for puncture operation, the metal needle 4 is drawn out after puncture is completed, the soft needle 2 is kept in the body of a patient, the hose 1 is convenient to be connected with an external pipeline, the outer wall of the metal needle 4 is in clearance fit with the inner wall of the hose 1, the outer wall of the hose 1 is provided with a pipe clamp 3, the pipe clamp 3 aims to clamp the hose 1 when the external pipeline is required to be connected with the hose 1 after the metal needle 4 is drawn out, the blood overflow is prevented, one end of the hose 1 far away from the soft needle 2 is connected with a cover body 9, the inner wall of the cover body 9 is in clearance fit with the outer wall of the metal needle 4, silica gel pads 10 are embedded in the inner wall of the cover body 9 at equal intervals, the design of the silica gel pads 10 is adopted, when the metal needle 4 is drawn out of the cover body 9, the hole of the silica gel pad 10 pierced by the metal needle 4 is automatically sealed, the silica gel pad can realize the sealing of the cover body 9 by the same principle as a rubber cap of an infusion bottle, the three silica gel pads 10 are matched to completely ensure the sealing effect, an absorption ring 11 is embedded in one end of the inner wall of the cover body 9 far away from the soft needle 2, the absorption ring 11 can be made of cotton material to absorb a small amount of blood carried by the metal needle 4 and avoid overflowing, the absorption ring 11 and the silica gel pad 10 are in interference fit with the outer wall of the metal needle 4, two ends of the pipe clamp 3 are in a buckle structure and are mutually matched, the hose 1 and the cover body 9 are in threaded connection, the outer wall of one end of the metal needle 4 far away from the soft needle 2 is communicated with a handle 5, a blood backflow cavity 6 is formed between the handle 5 and the metal needle 4, the handle 5 is integrally made of transparent material, once the metal needle 4 pierces a blood vessel of a patient, the blood can enter the blood backflow cavity 6, the medical staff can confirm the success of the puncture conveniently.

Handle 5 is close to one side inner wall clearance fit of metal syringe needle 4 has protecting tube 7, the aim at of protecting tube 7 is taken out completely when hose 2 and lid 9 when metal syringe needle 4, the sharp-pointed part of metal syringe needle 4 hides in the inside of protecting tube 7, avoid the accidental injury personnel, the inner wall fixedly connected with rubber tube 8 of protecting tube 7, rubber tube 8 increases the friction between protecting tube 7 and the metal syringe needle 4, stability is guaranteed, the inner wall of rubber tube 8 and the outer wall interference fit of metal syringe needle 4, and protecting tube 7 agrees with each other with lid 9.

Example (b): when the dialysis trocar for preventing blood overflow is used, firstly, the metal needle head 4 is carried with the soft needle head 2 to puncture into the blood vessel of a patient, when the blood return cavity 6 in the handle 5 is seen to have blood, the mark puncture is successful, at the moment, the pulling handle 5 drives the metal needle head 4 to be drawn out from the inside of the soft needle head 2, when the metal needle head 4 is separated from the hose 1, the pipe clamp 3 is closed, the hose 1 is closed, when the metal needle head 4 is drawn out from the inside of the cover body 9, the aperture of the silica gel pad 10 is self-sealed, the sealing is realized, a small amount of blood carried by the metal needle head 4 can be absorbed by the absorption ring 11, the blood overflow is avoided, the sharp part of the metal needle head 4 is hidden in the inside of the protection pipe 7, the accidental injury of personnel is avoided, when the hose 1 is connected with an external pipeline, the pipe clamp 3 is closed, and the condition of the blood overflow can be effectively reduced.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A dialysis trocar for preventing blood spillage, comprising a flexible tube (1), one end of the flexible needle (1) is communicated with a soft needle (2), and the inner wall gap of the soft needle (2) is fitted with a metal A needle (4), the outer wall of the metal needle (4) is in clearance fit with the inner wall of the hose (1), characterized in that: the outer wall of the hose (1) is provided with a pipe clamp (3), the hose (1) (1) A cover (9) is connected to the end away from the soft needle (2), the inner wall of the cover (9) is in clearance fit with the outer wall of the metal needle (4), and the inner walls of the cover (9) are equidistant A silicone pad (10) is embedded therein, and an absorption ring (11) is embedded in the end of the inner wall of the cover body (9) away from the soft needle (2), the absorption ring (11) and the silicone pad (10) are both made of metal. The outer wall of the needle (4) has an interference fit. 2 . The dialysis trocar for preventing blood spillage according to claim 1 , wherein the two ends of the tube clamp ( 3 ) are in a snap-fit structure, and the two ends fit each other. 3 . 3 . The dialysis trocar for preventing blood spillage according to claim 1 , wherein the hose ( 1 ) and the cover body ( 9 ) are threadedly connected. 4 . 4. The dialysis trocar for preventing blood spillage according to claim 1, wherein a handle (5) is communicated with the outer wall of one end of the metal needle (4) away from the soft needle (2). A blood return cavity (6) is formed between (5) and the metal needle (4). 5. The dialysis trocar for preventing blood spillage according to claim 4, wherein the inner wall of the handle (5) close to the metal needle (4) is gap-fitted with a protective tube (7), so The inner wall of the protective tube (7) is fixedly connected with a rubber tube (8), the inner wall of the rubber tube (8) is in interference fit with the outer wall of the metal needle (4), and the protective tube (7) and the cover (9) fit each other.

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