CN219595459U

CN219595459U - Novel dialysis indwelling needle

Info

Publication number: CN219595459U
Application number: CN202320356242.9U
Authority: CN
Inventors: 陆小军; 吴建忠; 杨金梅; 刘斌
Original assignee: Second Peoples Hospital of Huaihua
Current assignee: Second Peoples Hospital of Huaihua
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-08-29
Anticipated expiration: 2033-03-01

Abstract

The utility model discloses a novel dialysis indwelling needle, which comprises a needle tube body, wherein one end of the middle part of the needle tube body is detachably provided with a catheter seat, the middle part of the catheter seat is penetrated and provided with a hose body, the middle part of the hose body is sleeved and connected with a control switch, one end of the middle part of the control switch is detachably sleeved and connected with a sealing component, the sealing component comprises an anti-needling protection mechanism, and the hose body can be penetrated and inserted into the middle part of the control switch to control the flow or stop of blood when in use. The needle sleeve material with the dialysis indwelling needle has good biocompatibility with blood vessels, and no metal tube residue; the needle sleeve which is remained in the blood vessel after the puncture enters the blood vessel is made of flexible materials, so that the stimulation to the blood vessel intima is small, and the incidence rate of vascular stenosis caused by intimal hyperplasia is reduced; after the needle sleeve is punctured into the blood vessel, the needle sleeve can bend along with the shape of the blood vessel, is not easy to slide out of the blood vessel, and can reduce hematoma of the puncture point and surrounding tissues, subcutaneous congestion and aneurysm.

Description

Novel dialysis indwelling needle

Technical Field

The utility model belongs to the technical field of temporary vascular access devices in the field of blood purification, and particularly relates to a novel dialysis indwelling needle.

Background

Medical devices refer to instruments, devices, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly for the human body, including computer software as required, medical devices including medical equipment and medical consumables, the utility being obtained mainly by physical means, not by pharmacological, immunological or metabolic means, or by these means, but only by auxiliary means, for the purpose of diagnosis, prevention, monitoring, treatment or alleviation of diseases; diagnosis, monitoring, treatment, alleviation or functional compensation of lesions; examination, substitution, regulation or support of physiological structures or physiological processes; support or maintenance of life; controlling pregnancy; by examining a sample from a human body, providing information for medical or diagnostic purposes, publication No.: CN214969921U discloses a novel dialysis detaining needle, which comprises an outer tube, the top of outer tube is provided with detaining needle device, detaining needle device's inside is provided with metal pjncture needle, the inside sliding connection of outer tube has the pull rod, metal pjncture needle sets up the top at the pull rod, the one end cooperation that detaining needle device was kept away from to the outer tube is connected with luer, cooperation connection between luer and the pull rod, luer's surface and the one end that keeps away from the outer tube are provided with the handle, detaining needle device's surface and the one end that keeps away from the outer tube have been seted up gradual change arc surface, the utility model relates to medical equipment technical field, this novel dialysis detaining needle has reached the effect of preventing moving, can prevent effectively that the metal needle from rotating or removing at will, easy operation, swift convenient, be favorable to medical personnel to accurate puncture fast to the fear that brings the patient has been reduced, is favorable to going on smoothly, safe and reliable has improved performance.

However, the prior art has some problems: when the heparin cap at the tail end of the dialysis indwelling needle is taken down to be connected with the dialysis blood way pipe joint, a nurse is required to pinch or clamp the hose part of the middle section by hands, if the hose part is not pinched, blood in blood vessels such as internal fistula can be sprayed out, on one hand, the loss and waste of blood of a patient part are caused, on the other hand, the risk of hospital infection is increased, in addition, the hose part of the middle section of the dialysis indwelling needle is clamped by the equipment such as hemostat, the hose is damaged, blood loss and blood pollution bed units and working environment can be caused, because the product has no design switch clip, a certain difficulty exists in sealing the tube with daily heparin brine, the sealing tube is not thorough, thrombus is easily formed in the dialysis indwelling needle, and the dialysis indwelling needle is blocked, so that a novel dialysis indwelling needle is proposed.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides a novel dialysis indwelling needle, and the needle sleeve material with the dialysis indwelling needle has good biocompatibility with blood vessels and no metal tube residue; the needle sleeve which is remained in the blood vessel after the puncture enters the blood vessel is made of flexible materials, so that the stimulation to the blood vessel intima is small, and the incidence rate of vascular stenosis caused by intimal hyperplasia is reduced; after the needle sleeve is punctured into a blood vessel, the needle sleeve can bend along with the shape of the blood vessel, is not easy to slide out of the blood vessel, can reduce the occurrence of hematoma of puncture points and surrounding tissues, subcutaneous congestion and aneurysms, solves the problems that when the heparin cap at the tail end is taken down to be connected with a dialysis blood path pipe joint, a nurse needs to pinch or clamp a hose part of the middle section by hands, if the hose part is not pinched, blood injection in the blood vessel such as internal fistula is caused, on one hand, the loss and the waste of the blood of the patient are caused, on the other hand, the blood pollution and the risk of hospital infection are increased, and in addition, the hose part of the middle section of the dialysis indwelling needle is clamped by the apparatuses such as hemostatic forceps is too tight, the damage of the hose is caused, the blood loss and the blood pollution bed unit and the working environment are also caused, and because the product has no switch clip to cause certain difficulty in daily heparin saline sealing pipe, the sealing pipe is not thorough, thrombus is easy to be formed in the dialysis indwelling needle, and the indwelling needle is blocked.

The utility model discloses a novel dialysis indwelling needle, which comprises a needle tube body, wherein one end of the middle part of the needle tube body is detachably provided with a catheter seat, the middle part of the catheter seat is provided with a hose body in a penetrating way, the middle part of the hose body is sleeved with a control switch, one end of the middle part of the control switch is detachably sleeved with a sealing assembly, and the sealing assembly comprises an anti-needling protection mechanism.

Preferably, the control switch is provided with a control groove at the middle part corresponding to the hose body, and the hose body is inserted into the control switch at the middle part in use to control the flow or stop of blood.

As the preferable mode of the utility model, the other end of the middle part of the hose body is sleeved with the clamping pipe, one end of the middle part of the clamping pipe is provided with the sealing ring, the other end of the middle part of the clamping pipe is provided with the clamping block, and the middle part of the clamping pipe is sleeved with the anti-needling protection mechanism in a sliding manner.

As the preferable mode of the utility model, one end of the middle part of the needle-punching prevention protection mechanism is provided with a clamping groove corresponding to the clamping block, the other end of the middle part of the needle-punching prevention protection mechanism is provided with a blood return part, and one end of the middle part of the blood return part is provided with a hemostatic plug.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model strengthens the whole use convenience of the device through the structural design of the hose body and the control switch, and can effectively control and regulate the blood flowing speed in the middle part of the hose body through the control switch when in use, thereby requiring nurses to pinch or clamp the hose part of the middle section by hands when in use, avoiding the phenomenon that if the hose part is not pinched, the blood in blood vessels such as internal fistula is sprayed out, on the one hand, the blood of a patient is lost and wasted, on the other hand, the blood pollution and the hospital risk are increased, and in addition, the hose part of the middle section of the dialysis indwelling needle is clamped by the instrument such as hemostatic forceps is overtightened, the damage of the hose is caused, and the phenomena of blood loss, blood pollution of bed units and working environment are also caused.

2. According to the utility model, through the structural design that the control groove corresponding to the hose body is formed in the middle of the control switch, the hose body is inserted into the middle of the control switch in a penetrating way when in use, so that the flow or stop of blood can be controlled.

3. According to the utility model, through the structural design of the clamping pipe, the sealing ring and the clamping block, the integral sealing effect of the device is enhanced, and one end of the needle-punching-preventing protection mechanism can be effectively sealed and protected through the sealing ring when the device is used, so that blood is prevented from flowing out of a gap.

4. According to the utility model, through the structural design of the clamping block, the clamping groove, the anti-needling protection mechanism, the blood return part and the hemostatic plug, the integral installation convenience of the device is enhanced, and the integral device can be effectively clamped and installed through the clamping block and the clamping groove formed in one end of the middle part of the anti-needling protection mechanism during use, so that the integral installation efficiency of the device is indirectly enhanced.

Drawings

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial structure provided by an embodiment of the present utility model;

fig. 3 is a schematic structural view of a seal assembly according to an embodiment of the present utility model.

In the figure: 1. a needle tube body; 2. a catheter holder; 3. a hose body; 4. a control switch; 5. a seal assembly; 501. clamping the pipe; 502. a seal ring; 503. a clamping block; 504. a clamping groove; 505. an anti-needling protection mechanism; 6. a blood return part; 7. a hemostatic plug.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The structure of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the novel dialysis indwelling needle provided by the embodiment of the utility model comprises a needle tube body 1, wherein a catheter seat 2 is detachably arranged at one end of the middle part of the needle tube body 1, a hose body 3 is arranged in the middle of the catheter seat 2 in a penetrating manner, a control switch 4 is sleeved at the middle part of the hose body 3, a sealing component 5 is detachably sleeved at one end of the middle part of the control switch 4, and the sealing component 5 comprises an anti-needling protection mechanism 505.

The scheme is adopted: through the structural design of hose body 3 and control switch 4, make its holistic use convenience of device has been strengthened, accessible control switch 4 carries out effectual control to the speed of its hose body 3 middle part blood flow when using, thereby need the nurse to pinch or the instrument to clip the hose part of interlude with the hand when using, make it avoided if not pinching hose part and can cause the intravascular blood injection such as internal fistula to go out, on the one hand cause the loss and the waste of patient's partial blood, on the other hand blood pollution and increase the hospital feel risk, in addition the instrument is too tight like the hose part of hemostatic forceps clip dialysis indwelling needle interlude, can cause the damage of hose, also can cause the phenomenon emergence of blood loss and blood pollution bed unit and operational environment.

Referring to fig. 1 and 2, a control groove corresponding to the hose body 3 is provided in the middle of the control switch 4, and the hose body 3 is inserted into the middle of the control switch 4 to control the flow or stop of blood when in use.

The scheme is adopted: through the structural design that the control groove corresponding to the hose body 3 is arranged in the middle of the control switch 4, the hose body 3 is inserted into the middle of the control switch 4 in a penetrating way when in use, and the flow or stop of blood can be controlled.

Referring to fig. 2 and 3, the other end of the middle part of the hose body 3 is sleeved with a clamping tube 501, one end of the middle part of the clamping tube 501 is provided with a sealing ring 502, the other end of the middle part of the clamping tube 501 is provided with a clamping block 503, and the middle part of the clamping tube 501 is sleeved with an anti-needling protection mechanism 505 in a sliding manner.

The scheme is adopted: through the structural design of the clamping pipe 501, the sealing ring 502 and the clamping block 503, the whole sealing effect of the device is enhanced, and one end of the anti-needling protection mechanism 505 can be effectively sealed and protected through the sealing ring 502 when in use, so that blood is prevented from flowing out of a gap.

Referring to fig. 2 and 3, a clamping groove 504 corresponding to the clamping block 503 is formed at one end of the middle part of the anti-needling protection mechanism 505, a blood return part 6 is arranged at the other end of the middle part of the anti-needling protection mechanism 505, and a hemostatic plug 7 is arranged at one end of the middle part of the blood return part 6.

The scheme is adopted: through the structural design of the clamping block 503, the clamping groove 504, the anti-needling protection mechanism 505, the blood return part 6 and the hemostatic plug 7, the whole installation convenience of the device is enhanced, and the device can be installed in an effective clamping manner through the clamping block 503 and the clamping groove 504 formed in one end of the middle of the anti-needling protection mechanism 505 during use, so that the whole installation efficiency of the device is indirectly enhanced.

The working principle of the utility model is as follows:

when the device is used, through the structural design of the control groove corresponding to the hose body 3 is formed in the middle of the control switch 4, the hose body 3 can be inserted into the middle of the control switch 4 in a penetrating manner to control the flow or stop of blood when the device is used, so that a nurse is required to pinch or clamp the hose part of the middle section by hands when the device is used, the phenomenon that blood in blood vessels such as internal fistula is sprayed out due to the fact that the hose part is not pinched is avoided, on one hand, the loss and the waste of the blood of the patient part are caused, on the other hand, the blood pollutes and the risk of hospital feel are increased, the whole sealing effect of the device is enhanced through the structural design of the clamping tube 501, the sealing ring 502 and the clamping block 503, the effective sealing protection is carried out on one end of the anti-needling protection mechanism 505 through the sealing ring 502, the blood is prevented from flowing out from a gap, and the whole mounting convenience of the device is enhanced through the structural design of the clamping block 503, the clamping groove 504, the anti-needling protection mechanism 505, the blood return part 503 and the hemostatic plug 7.

To sum up: this novel dialysis is kept somewhere needle, through needle tubing body 1, catheter holder 2, hose body 3, control switch 4, seal assembly 5, clamp tube 501, sealing washer 502, joint piece 503, joint groove 504, prevent that the acupuncture protection machanism 505, back blood portion 6, the structure of tampon 7, it is when taking off tail end heparin cap and connecting the hemodialysis blood way coupling to have solved this dialysis and keep somewhere the needle, need the nurse to hold the hose part of interlude with the hand or the instrument is held, if the hose part can cause the intravascular blood injection such as internal fistula and go out not holding tight, on the one hand cause losing and extravagant of patient's part blood, on the other hand blood pollution and increase the risk of hospital's feel, in addition the instrument such as hemostatic forceps hold the hose part of dialysis keep somewhere the needle interlude too tight, can cause the damage of hose, also can cause blood loss and blood pollution bed unit and operational environment because this product does not design switch clip and causes daily heparin brine seal tube to have certain difficulty, and seal tube incompletely, lead to the formation thrombus in the dialysis keep somewhere the needle easily, block up the problem of dialysis needle.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. The utility model provides a novel needle is kept somewhere in dialysis, includes needle tubing body (1), its characterized in that: the needle tube comprises a needle tube body (1), and is characterized in that a catheter seat (2) is detachably arranged at one end of the middle part of the needle tube body (1), a hose body (3) is installed in the middle of the catheter seat (2) in a penetrating mode, a control switch (4) is sleeved at the middle of the hose body (3), a sealing assembly (5) is detachably sleeved at one end of the middle part of the control switch (4), and the sealing assembly (5) comprises an anti-needling protection mechanism (505).

2. The novel dialysis indwelling needle according to claim 1, in which: the control switch (4) middle part is offered and is had the control groove corresponding with hose body (3), hose body (3) run through and insert control switch (4) middle part when using and can control the flow or the stop of blood.

3. A novel dialysis catheter according to claim 2, wherein: the novel hose is characterized in that a clamping pipe (501) is sleeved at the other end of the middle of the hose body (3), a sealing ring (502) is arranged at one end of the middle of the clamping pipe (501), a clamping block (503) is arranged at the other end of the middle of the clamping pipe (501), and an anti-needling protection mechanism (505) is sleeved at the middle of the clamping pipe (501) in a sliding manner.

4. A novel dialysis catheter according to claim 3, wherein: the anti-needling protection mechanism is characterized in that a clamping groove (504) corresponding to the clamping block (503) is formed in one end of the middle of the anti-needling protection mechanism (505), a blood return part (6) is arranged at the other end of the middle of the anti-needling protection mechanism (505), and a hemostatic plug (7) is arranged at one end of the middle of the blood return part (6).