CN213217507U

CN213217507U - Puncture needle for interventional therapy of cardiology

Info

Publication number: CN213217507U
Application number: CN202022053383.2U
Authority: CN
Inventors: 张钰彬; 郑加
Original assignee: Yuechi People's Hospital
Current assignee: Yuechi People's Hospital
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-18
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a intracardiac branch of academic or vocational study is intervene treatment and is used pjncture needle, it includes: the needle head is connected with the pintle and communicated with the pintle, the side wall of the pintle is detachably connected with the handle, the pintle is provided with a fixed seat, the fixed seat is provided with a clamping groove, an internal thread is arranged on the inner surface of the clamping groove, the top of the handle is provided with a raised clamping block, the size of the clamping block is matched with that of the clamping groove, and the surface of the clamping block is provided with an external thread matched with the internal thread; the clamping block of the handle can be screwed into the clamping groove, the handle is fixed on the pintle, the needle head is directly penetrated into the target position by holding the handle by hand, the contact area of the hand part and the contact part of the puncture needle head is increased by the arrangement of the handle, the needle head is convenient to grasp, the needle cylinder is not required to be connected, the operation distance from the hand to the blood vessel is shortened, and the operation is more direct and convenient; the silica gel sleeve can slide along the needle head, and when the needle point of the needle head reaches a target position, the silica gel sleeve can slide to the contact position of the needle head and the skin along the needle head to mark the needle insertion depth.

Description

Puncture needle for interventional therapy of cardiology

Technical Field

The utility model relates to a medical auxiliary appliances technical field, concretely relates to intracardiac branch of academic or vocational study is intervene treatment and is used pjncture needle.

Background

The cardiology department, i.e., the cardiovascular department, is a clinical department set by the major medicine of all levels of hospitals for diagnosing and treating cardiovascular diseases, and the types of interventional therapy of the cardiology department include coronary heart disease intervention, arrhythmia intervention, congenital heart disease intervention, heart valve intervention and great vessel disease intervention. In brief, the interventional therapy is a minimally invasive treatment method in which a small channel with a diameter of several millimeters is made on a blood vessel and a skin or an original pipeline of a human body under the guidance of an imaging device (an angiography machine, a fluoroscopy machine, a CT, an MR, a B-ultrasound) to treat a local part of a focus without operating to expose the focus. During interventional procedures, physicians often need to use puncture needles that can be used to puncture organs, tissues or to inject drugs to perform the procedure.

The existing puncture needle for the interventional therapy of the cardiology department comprises a single-wall puncture needle and a cannula puncture needle, wherein the single-wall puncture needle is mainly used for puncturing the front wall of a blood vessel, but the existing single-wall puncture needle is difficult to separate from an injector for puncturing, the existing single-wall puncture needle is matched with the injector for use, the injector is firstly used for puncturing the blood vessel, then a needle cylinder is removed for reserving a puncture needle head, and a guide wire is inserted into the needle head for corresponding therapy, so that the use of the single-wall puncture needle is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the single-wall puncture needle must be matched with an injector for use.

In order to achieve the above object, the utility model discloses a puncture needle for cardiology intervention treatment, it includes:

the needle head is connected with the pintle and communicated with the pintle, the side wall of the pintle is detachably connected with the handle, the pintle is provided with a fixed seat, the fixed seat is provided with a clamping groove, an internal thread is arranged on the inner surface of the clamping groove, the top of the handle is provided with a raised clamping block, the size of the clamping block is matched with that of the clamping groove, and the surface of the clamping block is provided with an external thread matched with the internal thread; a blood flow channel is formed in the needle head along the axial direction, and an annular silica gel sleeve is sleeved outside the needle head.

Preferably, the needle valve further comprises a drainage hose, the drainage hose is detachably connected with the pintle, and a check valve is arranged on the drainage hose.

Preferably, the drainage hose is made of a transparent medical grade polyvinyl chloride material.

Preferably, the handle is a strip-shaped sheet with the thickness of 2-4mm, the handle is provided with a groove, and the radian of the groove is matched with that of a human finger.

Preferably, the surface of the handle is provided with an anti-slip layer, and the surface of the anti-slip layer is provided with granular protrusions.

Preferably, the anti-slip layer is made of rubber materials.

Preferably, one end of the pintle, which is far away from the needle head, is provided with a guide wire inlet, and the diameter of the guide wire inlet is larger than that of the guide outlet.

By adopting the technical scheme, the utility model discloses mainly there is following technological effect:

1. the side surface of the pintle is provided with a detachable handle, when the handle is not installed, the pintle can be connected with the syringe of the injector, and the syringe is held to enable the needle head to penetrate into a target position to be matched for use so as to carry out puncture treatment; the clamping block of the handle can be screwed into the clamping groove, the handle is fixed on the pintle, the needle head is directly penetrated into the target position by holding the handle by hand, the contact area of the hand part and the contact part of the puncture needle head is increased by the arrangement of the handle, the needle head is convenient to grasp, the needle cylinder is not required to be connected, the operation distance from the hand to the blood vessel is shortened, and the operation is more direct and convenient; the silica gel sleeve can slide along the needle head, and when the needle point of the needle head reaches a target position, the silica gel sleeve can slide to the contact position of the needle head and the skin along the needle head to mark the needle insertion depth.

2. The drainage hose is detachably connected with the pintle, when the drainage hose is not matched with the needle cylinder for use, the drainage hose is connected with the pintle, blood is led out of the drainage tube through the needle head when the needle point of the needle head penetrates into a blood vessel, the position of the needle point can be judged according to the observed blood condition, if continuous blood is led into the drainage hose, the needle point is shown to reach the blood vessel, if no blood backflow exists, the needle point is shown to be outside the blood vessel, and needle insertion or needle withdrawal needs to be adjusted to continue observation. The check valve can prevent blood or air from flowing backwards, and safety is improved.

3. The handle is a strip-shaped sheet, the contact area between the handle and fingers is increased due to the strip shape, the fingers can be clamped in the grooves to be more convenient to grasp, the thickness of the handle is 2-4mm, the needle head is favorably lowered to be close to the skin after the needle point of the needle head reaches a target position, the handle and the skin nearby are fixedly attached by a medical adhesive tape, and the needle head is prevented from moving randomly to cause puncture treatment failure when penetrating the guide wire.

4. The skid resistant course of handle adopts the rubber materials preparation, and is safe and soft, makes the difficult slippage of hand when the gripping and can not feel uncomfortable, and the graininess on the skid resistant course is protruding to have further increased the frictional force between finger and the handle.

5. The guide wire inlet is used for placing the guide wire in the blood flow channel of the needle head, the diameter of the leading-in port of the guide wire inlet is larger than that of the leading-out port, so that the guide wire inlet is in a funnel shape with a large top and a small bottom, the guide wire head can be conveniently and quickly introduced into the needle head when the guide wire is placed in, and the efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a puncture needle for interventional therapy in cardiology department of the present invention;

FIG. 2 is a schematic view of the handle structure of the puncture needle for interventional therapy in cardiology department of the present invention;

FIG. 3 is a schematic view of the connection between a puncture needle and a drainage tube for interventional therapy in cardiology department;

fig. 4 is a schematic view of the connection between the puncture needle and the needle cylinder for interventional therapy in cardiology department.

In the figure, 1-needle head, 11-silica gel sleeve, 2-pintle, 21-fixing seat, 3-handle, 31-clamping block, 32-groove, 4-guide wire inlet, 5-drainage hose, 51-check valve and 6-syringe.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 4, a puncture needle for cardiology interventional therapy includes:

syringe needle 1, pintle 2, handle 3, syringe needle 1 with pintle 2 is connected and communicates each other, the lateral wall of pintle 2 with handle 3 can be dismantled and be connected, be equipped with fixing base 21 on the pintle 2, be equipped with the draw-in groove on the fixing base 21, the draw-in groove internal surface is equipped with the internal thread, 3 tops of handle are equipped with bellied fixture block 31, fixture block 31 size with draw-in groove size phase-match, fixture block 31 surface is equipped with the external screw thread with internal thread matched with. A blood flow channel is formed in the needle head 1 along the axial direction, and an annular silica gel sleeve 11 is sleeved outside the needle head 1. The side surface of the pintle 2 is provided with a detachable handle 3, when the handle 3 is not installed, the pintle 2 can be connected with a syringe 6 of the injector, the syringe 6 is held, and the needle head 1 is penetrated into a target position to be matched for puncture treatment; also can be with the fixture block 31 precession draw-in groove of handle 3, on being fixed in pintle 2 with handle 3, handheld handle 3 directly pierces syringe needle 1 target position, and handle 3's setting has increased the area of contact of hand with 1 contact segment of puncture syringe needle, the gripping syringe needle 1 of being convenient for, and need not to connect cylinder 6, has shortened from the operation distance of hand to blood vessel, and it is more direct convenient to operate. The silica gel sleeve 11 can slide along the needle head 1, and when the needle point of the needle head 1 reaches a target position, the silica gel sleeve 11 can slide to the contact position of the needle head 1 and the skin along the needle head 1 to mark the needle insertion depth. In addition, the handle 3 is assembled and disassembled through the internal thread and the external thread which are matched with each other, so that the handle 3 is assembled and disassembled very quickly and conveniently.

Furthermore, the novel needle plug drainage device further comprises a drainage hose 5, wherein the drainage hose 5 is detachably connected with the needle plug 2, and a check valve 51 is arranged on the drainage hose. The drainage hose 5 is detachably connected with the pintle 2, when the pintle 2 is not matched with the needle cylinder 6 for use, the drainage hose 5 is connected with the pintle 2, blood is led out of the drainage hose through the needle head 1 when the needle head of the needle head 1 penetrates into a blood vessel, the position of the needle head can be judged according to the observed blood condition, particularly, if continuous blood is led into the drainage hose, the needle head reaches the blood vessel, if no blood backflow exists, the needle head is outside the blood vessel, and needle insertion or needle withdrawal needs to be adjusted to continue observation. The check valve 51 prevents the reverse flow of blood or air, thereby improving safety.

It should be noted that the handle 3 may be selectively not installed or installed one or two according to actual operating conditions and needs, for example, when the pintle is not used in cooperation with the needle cylinder, the handles may be installed on both sides of the pintle, so that an operator can hold the handles to push the needle; when the pintle is matched with the needle cylinder for use, the handle 3 does not need to be installed, and the needle cylinder is held by hand for puncture; when the puncture needle is connected with the drainage hose for use, a handle can be arranged, and one hand holds the handle to insert the needle during operation.

Further, the drainage hose 5 is made of a transparent medical grade polyvinyl chloride material. The medical polyvinyl chloride has good stability, thermal stability, chemical resistance and oil resistance, does not pollute a conveying medium, and is a safe and reliable drainage hose material.

Further, the handle 3 is a strip-shaped sheet with the thickness of 2-4mm, the handle 3 is provided with a groove 32, and the radian of the groove 32 is matched with that of a human finger. The handle 3 is a strip-shaped sheet, the contact area of the strip-shaped sheet with fingers is increased, the fingers can be clamped in the grooves 32 to be more convenient to grasp, the thickness of the strip-shaped sheet is 2-4mm, the needle head 1 is reduced to be close to the skin after the needle point of the needle head 1 reaches a target position, the handle 3 is fixedly attached to the skin nearby by a medical adhesive tape, and the puncture treatment failure caused by the disorder of the needle head 1 when the guide wire penetrates into the needle head is prevented.

Further, the surface of the handle 3 is provided with an anti-slip layer, and the surface of the anti-slip layer is provided with granular protrusions. Specifically, the anti-skid layer is made of rubber materials. The skid resistant layer of the handle 3 is made of rubber materials, is safe and soft, so that the hand is not easy to slip and feel uncomfortable when being gripped, and the granular protrusions on the skid resistant layer further increase the friction force between the fingers and the handle 3.

Furthermore, a guide wire inlet 4 is arranged at one end of the pintle 2 far away from the needle head 1, and the diameter of the inlet of the guide wire inlet 4 is larger than that of the outlet. The guide wire inlet 4 is used for placing a guide wire in the blood flow channel of the needle head 1, the diameter of the leading-in port of the guide wire inlet 4 is larger than that of the leading-out port, so that the guide wire inlet 4 is in a funnel shape with a large top and a small bottom, the guide wire head can be conveniently and quickly introduced into the needle head 1 when the guide wire is placed in, and the efficiency is improved.

Finally, it should be noted that: the embodiment of the present invention is only disclosed as a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A puncture needle for cardiology interventional therapy is characterized by comprising:

the novel needle comprises a needle head (1), a pintle (2) and a handle (3), wherein the needle head (1) is connected with the pintle (2) and communicated with the pintle (2), the side wall of the pintle (2) is detachably connected with the handle (3), a fixing seat (21) is arranged on the pintle (2), a clamping groove is formed in the fixing seat (21), an internal thread is formed in the inner surface of the clamping groove, a raised clamping block (31) is arranged at the top of the handle (3), the size of the clamping block (31) is matched with that of the clamping groove, and an external thread matched with the internal thread is formed in the surface of the clamping block (31); a blood flow channel is formed in the needle head (1) along the axial direction, and an annular silica gel sleeve (11) is sleeved outside the needle head (1).

2. A puncture needle for interventional therapy in cardiology according to claim 1, wherein:

still include drainage hose (5), drainage hose (5) with pintle (2) can be dismantled and be connected, be equipped with check valve (51) on drainage hose (5).

3. A puncture needle for interventional cardiology therapy according to claim 2, wherein:

the drainage hose (5) is made of transparent medical grade polyvinyl chloride materials.

4. A puncture needle for cardiology interventional therapy according to claim 1 or 2, wherein:

the handle (3) is a strip-shaped sheet with the thickness of 2-4mm, a groove (32) is formed in the handle (3), and the radian of the groove (32) is matched with the fingers of a person.

5. A puncture needle for intracardiac interventional therapy according to claim 4, characterized in that:

the surface of the handle (3) is provided with an anti-skid layer, and the surface of the anti-skid layer is provided with granular protrusions.

6. A puncture needle for intracardiac interventional therapy according to claim 5, characterized in that:

the anti-slip layer is made of rubber materials.

7. A puncture needle for intracardiac interventional therapy according to claim 1,

one end of the pintle (2) far away from the needle head (1) is provided with a guide wire inlet (4), and the diameter of the inlet of the guide wire inlet (4) is larger than that of the outlet.