Air bag remaining needle
By introducing a retractable airbag module into the indwelling needle, the existing indwelling needle is solved by cumbersome operation and easy needle tip to break out or puncture the blood vessel, achieving a higher puncture success rate and a safer operating process.
Patent Information
- Application Number
- CN202421361923.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing indwelling needle is complicated to operate, and the needle tip is prone to break out or puncture the blood vessels, resulting in puncture failure and increasing patient pain.
An airbag indwelling needle is designed, including a retractable airbag module, which expands the airbag through acupressure airbag to achieve retraction of the needle core and ensures that the needle tip pierces the blood vessels under the protection of the cannula.
It improves the success rate of indwelling needle puncture, avoids the needle tip or puncture of blood vessels, and reduces the patient's pain and waste of medical devices.
Smart Images
Figure CN222510591U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an air bag indwelling needle. Background Art
[0002] With the continuous development of medical technology, indwelling needles are widely used in clinical practice. They can not only reduce the pain caused by repeated intravenous punctures and the fear of injections in patients, and reduce the anxiety of family members, but also facilitate clinical medication, emergency and critically ill patients' rescue medication, and reduce the workload of nurses. However, indwelling needles are generally more complicated to operate than ordinary steel needles. Whether the indwelling needle can be successfully inserted is a sign of its use, and the success rate of indwelling needle insertion is also a prerequisite for its promotion.
[0003] Currently, indwelling needles are widely used in clinical practice. The operator needs to cooperate closely with both hands during puncture. This is especially true when encountering restless patients or difficult puncture sites or blood vessels. After blood returns during puncture, the other hand is needed to withdraw the needle. During this process, the tip of the indwelling needle may come out of the blood vessel or puncture the blood vessel, causing puncture failure, increasing patient pain and wasting medical equipment. Summary of the invention
[0004] The utility model provides an air bag indwelling needle, aiming to solve the problems of the existing indwelling needles, such as complicated operation and the tip of the indwelling needle being easy to come out of the blood vessel or puncture the blood vessel.
[0005] The utility model embodiment is achieved in this way:
[0006] An airbag indwelling needle comprises a needle core, a cannula, a cannula seat, a retractable airbag module, a hose and an isolation plug;
[0007] The sleeve is sleeved on the outside of the needle core, the sleeve seat is provided at one end of the sleeve, the telescopic airbag module is matched with the end of the sleeve seat, and a hose connected with the inner cavity of the sleeve seat is provided on the side wall of the sleeve seat; the isolation plug is fixedly arranged in the sleeve seat, one end of the isolation plug is connected with the inner cavity of the sleeve seat, and the other end of the isolation plug is arranged against the telescopic airbag module; the needle core passes through the isolation plug and is fixedly connected to the telescopic airbag module.
[0008] The retractable airbag module includes a retractable needle seat, a retractable airbag, a retractable base, a needle holding wing, a finger pressure airbag and an air inlet channel; the retractable base is arranged between the isolation plug and the retractable needle seat, the retractable airbag is arranged in the retractable base, the needle holding wing is arranged on the retractable needle seat, the finger pressure airbag is arranged on the side of the needle holding wing, one end of the air inlet channel is connected to the finger pressure airbag, and the other end of the air inlet channel is connected to the retractable airbag.
[0009] As a preferred embodiment, a sleeve seat is provided at one end of the sleeve away from the needle tip of the needle core, and the sleeve is fixedly connected to the sleeve seat.
[0010] As a preferred embodiment, the end of the sleeve seat is rotatably and detachably matched with the retractable needle seat.
[0011] As a preferred embodiment, a hose communicating with the inner cavity of the sleeve seat is provided on the side wall of the sleeve seat.
[0012] As a preferred embodiment, the isolation plug is fixedly and sealingly disposed in the sleeve seat.
[0013] As a preferred embodiment, the needle core is connected to the isolation plug in a relatively sliding matching manner.
[0014] As a preferred embodiment, the needle holding wing is provided on the side wall of the retractable needle seat, and the retractable needle seat and the needle holding wing are integrally formed.
[0015] As a preferred embodiment, the needle core is fixedly connected to the retractable needle seat.
[0016] As a preferred embodiment, the telescopic distance of the retractable needle seat is greater than the Lai distance of 0.5 mm; the Lai distance is the distance from the tip of the needle core to the front section of the cannula. The needle tip of the needle core can be completely withdrawn into the cannula. With the protection of the cannula, the cannula and the needle core can be sent into the blood vessel without puncturing the blood vessel. Because the cannula is filled with the needle core and does not lose its toughness, the cannula will not be bent during the needle delivery process.
[0017] As a preferred embodiment, a card slot is provided at the end of the side wall of the telescopic base, and the card slot is matched with the raised portion at the end of the telescopic needle seat; the card slot and the raised portion can be locked with each other to control the telescopic distance, and can also prevent the telescopic base from falling off after the needle core is disassembled.
[0018] As a preferred embodiment, the telescopic airbag and the finger pressure airbag are both made of PVC material.
[0019] As a preferred embodiment, the upper and lower pressing plates of the acupressure airbag are connected to one side of the needle holding wing at an angle of 45° relative to each other; the upper and lower pressing plates of the acupressure airbag are made of a plastic material with high toughness.
[0020] As a preferred embodiment, the needle holding wing and the acupressure airbag are both provided with anti-skid convex points, which can increase the friction between the fingertips and the acupressure airbag during operation by medical staff, making it easier to squeeze the acupressure airbag.
[0021] As a preferred embodiment, the air inlet channel is arranged in the needle holding wing and the retractable needle seat.
[0022] When using the balloon indwelling needle, the operator tightens the skin and blood vessels with one hand, and holds the needle holding wing with the thumb and index finger of the other hand. After puncturing the blood vessel and seeing blood return, the operator squeezes the finger pressure balloon with the thumb and index finger holding the needle. The gas passes through the air inlet channel to expand the telescopic balloon, and the telescopic base is pushed toward the isolation plug, so that the needle core is retracted into the sleeve.
[0023] Compared with the prior art, the balloon indwelling needle provided by the utility model can make the retractable balloon module connected to the needle core have a retractable function. During the indwelling needle puncture process, the operator can use the fingertips holding the needle to lightly press the finger pressure balloon after seeing the blood return, and the retractable needle seat can be extended, so that the needle core needle tip can be retracted into the cannula. Because the needle tip is protected by the cannula, the blood vessel will not be punctured when the needle is sent into the blood vessel. At the same time, because when using the balloon indwelling needle, one hand fixes the blood vessel, and the other hand can complete the entire process of the cannula needle puncturing the blood vessel, there will be no phenomenon such as blood vessel retraction or rolling, which will cause the needle tip to fall out of the blood vessel, thereby improving the success rate of puncture. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 Schematic diagram of the cross-sectional structure of the balloon indwelling needle in this embodiment. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0030] At present, the existing indwelling needle has the defects of complicated operation and the tip of the indwelling needle is easy to be out of the blood vessel or puncture the blood vessel. In order to solve the above technical problems, the utility model proposes a balloon indwelling needle. Example
[0031] like Figure 1 As shown, an embodiment of the utility model provides an airbag indwelling needle, comprising a needle core 1, a cannula 2, a cannula seat 3, a retractable airbag module 4, a hose 5 and an isolation plug 6;
[0032] The sleeve 2 is sleeved on the outside of the needle core 1, and the sleeve seat 3 is provided at one end of the sleeve 2. The telescopic airbag module 4 is matched with the end of the sleeve seat 3, and a hose 5 connected to the inner cavity of the sleeve seat 3 is provided on the side wall of the sleeve seat 3; the isolation plug 6 is fixedly arranged in the sleeve seat 3, one end of the isolation plug 6 is connected to the inner cavity of the sleeve seat 3, and the other end of the isolation plug 6 is set against the telescopic airbag module 4; the needle core 1 passes through the isolation plug 6 and is fixedly connected to the telescopic airbag module 4;
[0033] The retractable airbag module 4 includes a retractable needle seat 40, a retractable airbag 41, a retractable base 42, a needle holding wing 43, a finger pressure airbag 44 and an air inlet channel 45; the retractable base 42 is arranged between the isolation plug 6 and the retractable needle seat 40, the retractable airbag 41 is arranged in the retractable base 42, the needle holding wing 43 is arranged on the retractable needle seat 40, the finger pressure airbag 44 is arranged on the side of the needle holding wing 43, one end of the air inlet channel 45 is connected to the finger pressure airbag 44, and the other end of the air inlet channel 45 is connected to the retractable airbag 41.
[0034] As a preferred embodiment, a sleeve seat 3 is provided at one end of the sleeve 2 away from the needle tip of the needle core 1 , and the sleeve 2 is fixedly connected to the sleeve seat 3 .
[0035] As a preferred embodiment, the end of the sleeve seat 3 is rotatably and detachably matched with the retractable needle seat 40.
[0036] As a preferred embodiment, a hose 5 communicating with the inner cavity of the sleeve seat 3 is provided on the side wall of the sleeve seat 3 .
[0037] As a preferred embodiment, the isolation plug 6 is fixedly and sealingly disposed in the sleeve seat 3 .
[0038] As a preferred embodiment, the needle core 1 and the isolation plug 6 are connected in a relatively sliding matching manner.
[0039] As a preferred embodiment, the needle holding wing 43 is provided on the side wall of the retractable needle seat 40, and the retractable needle seat 40 and the needle holding wing 43 are integrally formed.
[0040] As a preferred embodiment, the needle core 1 is fixedly connected to the retractable needle seat 40 .
[0041] As a preferred embodiment, the telescopic distance of the retractable needle seat 40 is greater than the Lai distance of 0.5 mm; the Lai distance is the distance from the tip of the needle core 2 to the front section of the sleeve 1. The needle tip of the needle core 1 can be completely withdrawn into the sleeve 2. With the protection of the sleeve 2, the sleeve 2 and the needle core 1 can be sent into the blood vessel without puncturing the blood vessel. Because the sleeve 2 is filled with the needle core 1 and does not lose its toughness, the sleeve 2 will not be bent during the needle delivery process.
[0042] As a preferred embodiment, a card slot is provided at the end of the side wall of the telescopic base 42, and the card slot is matched with the raised portion at the end of the telescopic needle seat 40; the card slot and the raised portion can be locked with each other to control the telescopic distance, and can also prevent the telescopic base 42 from falling off after the needle core 2 is disassembled.
[0043] As a preferred embodiment, the telescopic airbag 41 and the finger pressure airbag 44 are both made of PVC material.
[0044] As a preferred embodiment, the upper and lower pressing plates of the finger pressure airbag 44 are connected to one side of the needle holding wing 43 at an angle of 45° relative to each other; the upper and lower pressing plates of the finger pressure airbag 44 are made of a plastic material with high toughness.
[0045] As a preferred embodiment, anti-skid convex points are provided on the needle holding wing 43 and the acupressure airbag 44. The anti-skid convex points can increase the friction between the fingertips and the acupressure airbag 44 during operation by medical staff, making it easier to squeeze the acupressure airbag.
[0046] As a preferred embodiment, the air inlet channel 45 is disposed inside the needle holding wing 43 and the retractable needle seat 40 .
[0047] When using the present balloon indwelling needle, the operator tightens the skin and blood vessels with one hand, and holds the needle holding wing 43 with the thumb and index finger of the other hand. After puncturing the blood vessel and seeing blood return, the operator squeezes the finger pressure balloon 44 with the thumb and index finger holding the needle. The gas passes through the air inlet channel 45 to expand the telescopic balloon 41, and pushes the telescopic base 41 toward the isolation plug 6, so that the needle core 1 is retracted into the sleeve 2.
[0048] Compared with the prior art, the balloon indwelling needle provided by the utility model can make the retractable balloon module 4 connected to the needle core 1 have a retractable function. During the indwelling needle puncture process, the operator can use the fingertips holding the needle to gently press the finger pressure balloon 44 after seeing the blood return, and the retractable needle seat 40 can be extended, so that the needle tip of the needle core 1 can be retracted into the sleeve. Because the needle tip is protected by the sleeve 2, the blood vessel will not be punctured when the needle is sent into the blood vessel. At the same time, because when using the balloon indwelling needle, one hand fixes the blood vessel, and the other hand can complete the entire process of the sleeve needle puncturing the blood vessel, there will be no phenomenon such as blood vessel retraction or rolling, causing the needle tip to fall out of the blood vessel; during operation, the puncture can be completed with one hand, avoiding the sleeve from falling out of the blood vessel or puncturing the blood vessel during the cooperation of both hands; the success rate of indwelling needle puncture can be improved.
[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An air bag indwelling needle, characterized in that: It includes a needle core, a cannula, a cannula seat, a retractable airbag module, a hose and an isolation plug; The sleeve is sleeved on the outside of the needle core, the sleeve seat is provided at one end of the sleeve, the telescopic airbag module is matched with the end of the sleeve seat, and a hose connected with the inner cavity of the sleeve seat is provided on the side wall of the sleeve seat; the isolation plug is fixedly arranged in the sleeve seat, one end of the isolation plug is connected with the inner cavity of the sleeve seat, and the other end of the isolation plug is arranged against the telescopic airbag module; the needle core passes through the isolation plug and is fixedly connected to the telescopic airbag module.
2. The balloon indwelling needle according to claim 1, characterized in that: The retractable airbag module includes a retractable needle seat, a retractable airbag, a retractable base, a needle holding wing, a finger pressure airbag and an air inlet channel; the retractable base is arranged between the isolation plug and the retractable needle seat, the retractable airbag is arranged in the retractable base, the needle holding wing is arranged on the retractable needle seat, the finger pressure airbag is arranged on the side of the needle holding wing, one end of the air inlet channel is connected to the finger pressure airbag, and the other end of the air inlet channel is connected to the retractable airbag.
3. The balloon indwelling needle according to claim 2, characterized in that: The end of the sleeve seat is rotatably and detachably matched with the retractable needle seat.
4. The balloon indwelling needle according to claim 2, characterized in that: A hose communicating with the inner cavity of the sleeve seat is arranged on the side wall of the sleeve seat.
5. The balloon indwelling needle according to claim 2, characterized in that: The needle holding wing is arranged on the side wall of the retractable needle seat, and the retractable needle seat and the needle holding wing are integrally formed.
6. The balloon indwelling needle according to claim 2, characterized in that: The telescopic distance of the telescopic needle seat is greater than the Lay distance by 0.5 mm.
7. The balloon indwelling needle according to claim 2, characterized in that: The end of the side wall of the telescopic base is provided with a clamping groove, and the clamping groove is matched with the protruding portion of the end of the telescopic needle seat.
8. The balloon indwelling needle according to claim 2, characterized in that: The upper and lower pressing plates of the finger pressure air bag are connected to one side of the needle holding wing at an angle of 45 degrees relative to each other.
9. The balloon indwelling needle according to claim 2, characterized in that: The needle holding wing and the finger pressure air bag are both provided with anti-slip convex points.
10. The balloon indwelling needle according to claim 2, characterized in that: The air inlet channel is arranged in the needle holding wing and the retractable needle seat.