CN215504856U

CN215504856U - Needle extractor for transfusion port

Info

Publication number: CN215504856U
Application number: CN202121268994.7U
Authority: CN
Inventors: 李静
Original assignee: Shanxi Tumour Hospital
Current assignee: Shanxi Tumour Hospital
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-01-14
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a needle extractor for an infusion port, which comprises: a hand-held cartridge; the pressure plate is arranged at the bottom of the handheld cylinder, and the handheld cylinder can be positioned above the silica gel diaphragm by contacting the outer skin of the patient through the pressure plate; the needle pulling assembly is arranged inside the handheld barrel, one end of the needle pulling assembly extends between the handheld barrel and the pressing plate, and the infusion needle is pulled out of the silica gel diaphragm through the movement of the needle pulling assembly in the handheld barrel.

Description

Needle extractor for transfusion port

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a needle extractor for an infusion port.

Background

The infusion port is an implanted central venous infusion device which is embedded in subcutaneous tissues and can be kept in place for a long time, mainly comprises an injection seat with a silica gel resin diaphragm and a radiopaque catheter, is suitable for patients with long-term intermittent intravenous infusion, and can be used for infusing various medicaments (including chemotherapeutic medicaments), supplementing liquid, nutrition supporting treatment, blood transfusion, blood sample collection and the like.

When the transfusion port is used, a transfusion needle needs to be inserted into a silica gel diaphragm, then liquid medicine is input into the diaphragm, and then the liquid medicine enters the body of a patient through a subcutaneous pipeline, the needle handle of the transfusion needle is in a butterfly wing shape, so the transfusion needle is often called as a butterfly wing needle, and the conventional operation method when the needle head is pulled out is as follows: the utility model discloses a take the thumb of one hand, forefinger and middle finger to be the triangle-shaped and press on the skin outside the infusion port earlier to the injection seat of fixed infusion port, the butterfly wing of the needle handle is held between the fingers to the other hand is upwards extracted fast perpendicularly, however, in the process of extracting, because the thickness of silica gel diaphragm is thicker, when the needle is extracted, medical personnel are comparatively hard, and inertia when medical personnel extract the syringe needle probably leads to the syringe needle to insert medical personnel's hand after extracting, and then leads to cross infection, for this reason, we propose an infusion port and pull out needle ware.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a needle extractor for an infusion port, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a needle extractor for a port of infusion comprising:

a hand-held cartridge;

the pressure plate is arranged at the bottom of the handheld cylinder, and the handheld cylinder can be positioned above the silica gel diaphragm by contacting the outer skin of the patient through the pressure plate;

the needle pulling assembly is arranged in the handheld barrel, one end of the needle pulling assembly extends between the handheld barrel and the pressing plate, and the transfusion needle is pulled out of the silica gel diaphragm by the needle pulling assembly through the movement of the needle pulling assembly in the handheld barrel.

Preferably, the needle extracting assembly comprises a button installed in a handheld barrel, a gear is rotatably installed in the handheld barrel, a first rack and a second rack are respectively arranged on two sides of the gear, the first rack is connected to the bottom of the button, the bottom of the second rack is provided with a needle extracting rod capable of being pulled out by the second rack, a through groove used for accommodating a transfusion needle tube is formed in the bottom of the needle extracting rod, the button is pressed, the first rack pushes the gear to rotate, the second rack is pushed to ascend, and then the transfusion needle located in a silica gel diaphragm is extracted by the needle extracting rod.

Preferably, a first spring is arranged between the button and the handheld barrel, and the first spring is compressed by pressing the button, so that the first spring can eject the button out of the handheld barrel after the button is released.

Preferably, one side of the handheld barrel is provided with an attaching plate which can be matched with the needle extracting rod to clamp the tail end of the infusion needle, and the attaching plate can synchronously ascend along with the needle extracting rod when the needle extracting rod moves.

Preferably, the attaching plate is connected with the handheld barrel through a telescopic rod, a second spring capable of connecting the attaching plate with the handheld barrel is arranged on the outer side of the telescopic rod, and one side of the attaching plate can slide in the through groove.

Preferably, the contact surface of the needle drawing rod and the needle handle of the infusion needle is an arc surface, and the contact surface of the attaching plate and the needle handle is an arc surface.

The utility model has at least the following beneficial effects:

the infusion needle is pulled out from the silica gel diaphragm through the needle pulling rod of the needle pulling assembly, and the infusion needle can be pulled out only by pressing the button, compared with the prior art, in the pulling process, due to the fact that the silica gel diaphragm is thick, medical staff have great labor when pulling out the needle, and the inertia when the medical staff pull out the needle possibly causes the needle to be inserted into the hand of the medical staff after being pulled out, so that cross infection is caused.

Drawings

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

FIG. 2 is a partial cross-sectional view of the inventive structure.

In the figure: 1-a handheld cartridge; 2-pressing a plate; 3-pulling the needle assembly; 31-a button; 32-gear; 33-rack one; 34-a second rack; 35-pulling the needle bar; 36-spring one; 4-a jointing plate; 5, a telescopic rod; 6-spring two; 7-through groove.

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. 1-2, the present invention provides a technical solution: a needle extractor for a port of infusion comprising:

the handheld cylinder 1 is hollow and cylindrical;

the pressing plate 2 is arranged at the bottom of the handheld barrel 1, the handheld barrel 1 can be positioned above the silica gel diaphragm by contacting the outer skin of the patient through the pressing plate 2, the pressing plate 2 is fixedly connected with the handheld barrel 1 through a connecting rod, and the pressing plate 2 can be pressed on the surface of the skin of the patient to provide vertical supporting force for the handheld barrel 1 and facilitate the placement of the handheld barrel 1;

pull out the needle subassembly 3, install in the inside of handing a section of thick bamboo 1, its one end extends to between handing a section of thick bamboo 1 and the clamp plate 2, through pull out the removal of needle subassembly 3 in handing a section of thick bamboo 1 for transfusion needle is pulled out in 3 follow silica gel diaphragms of needle subassembly of being pulled out, and through pulling out needle subassembly 3 convenience when the patient pulls out the needle, medical personnel are comparatively convenient when pulling out the needle, reduce the potential safety hazard when medical personnel pull out the needle.

The needle drawing assembly 3 comprises a button 31 installed in a handheld barrel 1, the button 31 is connected with the handheld barrel 1 in a sliding manner, the button 31 can slide in the handheld barrel 1 along the vertical direction, a gear 32 is installed in the handheld barrel 1 in a rotatable manner, the gear 32 is connected with the handheld barrel 1 in a rotating manner, a first rack 33 and a second rack 34 are respectively arranged on two sides of the gear 32, the first rack 33 and the second rack 34 are respectively meshed with the gear 32, the first rack 33 can push the gear 32 to rotate, the gear 32 can push the second rack 34 to rotate, the first rack 33 is connected to the bottom of the button 31, the first rack 33 is fixedly connected with the button 31, a needle drawing rod 35 capable of being drawn out by the second rack 34 is arranged at the bottom of the second rack 34, the needle drawing rod 35 is fixedly connected with the second rack 34, a through groove 7 for accommodating a needle tube of an infusion needle is formed in the bottom of the needle drawing rod 35, and the through groove 7 can accommodate the needle tube and the upper half part of the needle handle of the infusion needle tube, more conveniently to the pulling out of transfusion needle, through pressing the button 31, make rack 33 promote gear 32 to rotate and promote rack two 34 to rise, and then make pulling out needle bar 35 to pull out the transfusion needle that is located the silica gel diaphragm, when the patient needs to pull out the transfusion needle, medical personnel flat push clamp plate 2 to press on the surface of patient's position skin of pulling out the needle, clamp plate 2 presses on the surface of silica gel diaphragm, pulling out needle bar 35 inserts the bottom of needle handle, at this moment, medical personnel press button 31, button 31 promotes rack one 33 to rotate, rack one 33 promotes gear 32 to rotate, gear 32 rotates and promotes rack two 34 to rise, rack two 34 drives and pulls out needle bar 35 to rise, pulling out needle bar 35 pulls out the transfusion needle from the silica gel diaphragm, directly press through button 31 and pull out the transfusion needle, on the one hand reduce medical personnel's intensity of labour, make things convenient for medical personnel's use, on the other hand, medical personnel only need the one hand just can extract infusion needle, reduces the syringe needle and pierces the possibility of medical personnel's hand, protection medical personnel, and clamp plate 2 compresses tightly the silica gel diaphragm, and it is comparatively laborsaving to pull out infusion needle more convenient.

The spring I36 is arranged between the button 31 and the handheld barrel 1, the spring I36 is compressed by pressing the button 31, the button 31 can be ejected out of the handheld barrel 1 by the spring I36 after the button 31 is loosened, two ends of the spring I36 are fixedly connected with the button 31 and the handheld barrel 1 respectively, the spring I36 is compressed by pressing the button 31, and when the button 31 is loosened, the spring I36 pushes the button 31 to reset, so that the needle extractor can be used again conveniently.

One side of handheld section of thick bamboo 1 is equipped with can cooperate and pulls out needle bar 35 with the rigging board 4 of transfusion needle tail end centre gripping, and rigging board 4 is installed in the top of pulling out needle bar 35, rigging board 4 can be along with pulling out needle bar 35 synchronous rising when pulling out needle bar 35 and move, when pulling out needle bar 35 and rise, rigging board 4 and pulling out needle bar 35 with the needle handle centre gripping, reduce the transfusion needle and extract the possibility of rocking, convenient stable transfusion needle of extracting.

Attaching plate 4 and handheld 1 between be connected through telescopic link 5, the both ends of telescopic link 5 respectively with handheld 1 and 4 fixed connection of attaching plate, the outside of telescopic link 5 is equipped with two 6 of spring that can be connected attaching plate 4 and handheld 1, two 6 both ends of spring respectively with handheld 1 and 4 fixed connection of attaching plate, one side of attaching plate 4 can slide in logical groove 7, when needle bar 35 rises, needle bar 35 promotes the needle handle to attaching plate 4's bottom surface, needle bar 35 continues to rise, needle bar 35 synchronous promotion attaching plate 4 rises, telescopic link 5 shortens, two 6 compressions of spring, the transfusion needle is extracted under attaching plate 4 and the synchronization action of needle bar 35 this moment, makes things convenient for the more stable quilt of transfusion needle to be extracted.

The contact surface of the needle pulling rod 35 and the needle handle of the infusion needle is an arc surface, the contact surface of the attaching plate 4 and the needle handle is an arc surface, the two arc surfaces can facilitate the stable placement of the needle handle between the attaching plate 4 and the needle pulling rod 35, the possibility of shaking of the infusion needle during needle pulling is reduced, and the needle is pulled more conveniently.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 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

1. A needle extractor for a transfusion port is characterized in that: the method comprises the following steps:

a hand-held cartridge (1);

the pressing plate (2) is arranged at the bottom of the handheld barrel (1), and the handheld barrel (1) can be positioned above the silica gel diaphragm by contacting the outer skin of the patient through the pressing plate (2);

the needle pulling assembly (3) is installed inside the handheld barrel (1), one end of the needle pulling assembly extends to a position between the handheld barrel (1) and the pressing plate (2), and the transfusion needle is pulled out of the silica gel diaphragm by the needle pulling assembly (3) through the movement of the needle pulling assembly (3) in the handheld barrel (1).

2. The needle extractor of the port of infusion of claim 1, wherein: the needle pulling assembly (3) comprises a button (31) installed in a handheld barrel (1), a gear (32) is rotatably installed in the handheld barrel (1), a first rack (33) and a second rack (34) are respectively arranged on two sides of the gear (32), the first rack (33) is connected to the bottom of the button (31), a needle pulling rod (35) capable of being pulled out by the second rack (34) is arranged at the bottom of the second rack (34), a through groove (7) used for accommodating a needle tube of an infusion needle is formed in the bottom of the needle pulling rod (35), the button (31) is pressed, so that the first rack (33) pushes the gear (32) to rotate and pushes the second rack (34) to ascend, and the needle pulling rod (35) is used for pulling out the infusion needle located in a silica gel diaphragm.

3. The needle extractor of the port of infusion according to claim 2, wherein: a first spring (36) is arranged between the button (31) and the handheld barrel (1), the first spring (36) is compressed by pressing the button (31), and then the first spring (36) can eject the button (31) out of the handheld barrel (1) after the button (31) is released.

4. The needle extractor of the port of infusion according to claim 2, wherein: one side of handheld section of thick bamboo (1) is equipped with laminating board (4) that can cooperate needle drawing rod (35) will be transfusion needle tail end centre gripping, laminating board (4) can rise along with needle drawing rod (35) are synchronous when needle drawing rod (35) remove.

5. The needle extractor of the port of infusion of claim 4, wherein: attaching plate (4) and handheld section of thick bamboo (1) between be connected through telescopic link (5), the outside of telescopic link (5) is equipped with spring two (6) that can be connected attaching plate (4) and handheld section of thick bamboo (1), one side of attaching plate (4) can slide in logical groove (7).

6. The needle extractor of the port of infusion of claim 5, wherein: the contact surface of the needle drawing rod (35) and the needle handle of the infusion needle is an arc surface, and the contact surface of the attaching plate (4) and the needle handle is an arc surface.