CN217907865U

CN217907865U - Disposable puncture leading-in needle

Info

Publication number: CN217907865U
Application number: CN202221387231.9U
Authority: CN
Inventors: 许凯
Original assignee: Jilin Wohong Medical Instrument Manufacturing Co ltd
Current assignee: Jilin Wohong Medical Instrument Manufacturing Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-11-29
Anticipated expiration: 2032-06-01

Abstract

The present application provides a single use piercing introducer needle for introducing and securing a tissue suspension, comprising: the needle tube of the introduction needle extends longitudinally and is hollow inside, and the front end of the needle tube of the introduction needle is provided with a bevel needle point; a handle for fixing the needle tube of the introduction needle, said handle being provided with a guide hole and with a passage leading from the guide hole to the needle tube of the introduction needle, said passage enabling one end of the tissue hanger to enter from the handle into the needle tube of the introduction needle, and in a region of a predetermined length from said guide hole, a locking device being freely openable and closable for locking the other end of the tissue hanger. The utility model discloses can effectively alleviate operator's operation in a confused state of mind, make the operator conveniently with stretch into the other end of human tissue's tissue suspension ware and fix on the locking device of the leading-in needle of disposable puncture to effectively promote the security and the smoothness nature of whole operation.

Description

Disposable puncture leading-in needle

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a disposable puncture leading-in needle.

Background

In a minimally invasive surgery, a puncture introduction needle is often used to puncture a target tissue organ and introduce an associated surgical instrument or device or component to a desired position, and the existing puncture introduction needle generally adopts a stainless steel needle tube structure, typically an introduction needle as mentioned in the patent application No. 201510903194.0 and the invention name of "disposable tissue suspension device", and the introduction needle comprises an elongated needle tube, a needle point with a cutting bevel and a proximal end housing (also commonly referred to as a "needle seat"), and during the surgery, an operator holds the needle seat to perform a puncture operation and introduces the associated device, such as an introduction tissue suspension device, through the introduction needle.

In practice, during the operation of the doctor using the above-mentioned introduction needle, since the smooth sterile rubber gloves are worn, the needle seat is easy to slip and fall off when the needle seat is held by hand, thereby causing injury to the patient (for example, the tissue hanger in the introduction needle slides into the patient without being fixed); in addition, when a doctor holds the needle seat, the puncture introducing needle cannot be operated stably, and the phenomena of finger ache and the like of an operator are easily caused, so that the operation of the whole operation is influenced.

SUMMERY OF THE UTILITY MODEL

It is an object of the present disclosure to provide a single use piercing introducer needle and a suspension assembly that addresses at least one of the problems noted in the background.

To achieve the above object, according to an embodiment of the present application, the present invention provides the following technical solutions: a single use piercing introducer needle for introducing and securing a tissue suspension, comprising: the needle tube of the introduction needle extends longitudinally and is hollow inside, and the front end of the needle tube of the introduction needle is provided with a bevel needle point; a handle for fixing the needle tube of the introduction needle, the handle being provided with a guide hole and with a passage leading from the guide hole to the needle tube of the introduction needle, the passage enabling one end of the tissue hanger to enter from the handle into the needle tube of the introduction needle, and a freely openable and closable locking device for locking the other end of the tissue hanger being provided in a region of a predetermined length from the guide hole.

Preferably, the aperture of the channel is equal or substantially equal to the outer diameter of the tissue hanger.

Preferably, the handle is shaped like a Chinese character 'ren' without extending out of the head, the handle comprises a first part parallel or substantially parallel to the needle tube of the introducer needle and a second part at a predetermined angle to the first part, the channel is arranged in the first part, the guide hole is arranged at the connection of the first part and the second part, and the locking device is arranged on the second part.

Preferably, the preset included angle is greater than or equal to 90 degrees.

Preferably, the corner where the first and second portions are joined is provided with a rounded chamfer.

Preferably, the locking device comprises a movable clamping device, a clamping fastener, a movable insertion structure or a movable lock catch.

Preferably, the handle is an integrally formed structure, or the introducing needle tube and the handle are integrally formed structures.

Preferably, the inner side of the handle is provided with an anti-slip structure.

Preferably, the length of the needle tube of the introduction needle is between 100 and 400 mm.

Preferably, the inner diameter of the introduction needle tube is uniform and the outer diameter of the introduction needle tube is uniform.

Compared with the prior art, the beneficial effect of this application includes: compared with the prior art that the puncture needle and the locking device (the locking device is usually a simple infusion tube clamp) are designed to be separated, so that an operator can easily find the locking device in time due to confusion in the operation process, or the tissue suspender can easily slip into the body of a patient under the unfixed condition due to the slipping of the puncture needle, and other frequent unexpected results are obtained.

In addition, the inventor of the present invention optimizes the design of the channel to further improve the safety of the operation, so that the aperture of the channel is equal to or slightly larger than the outer diameter of the tissue hanger, thereby ensuring that the tissue hanger can smoothly enter the channel, and reducing the sliding speed of the tissue hanger to the body of the patient based on the friction force of the tissue hanger in close contact with the channel when the operator does not reach to fix the other end of the tissue hanger to the locking device, thereby striving for more reaction time for the operator.

In addition, in order to further improve the safety of the operation, the inventor designs the handle to be in a shape of a Chinese character 'ren' without extending out, on one hand, the operator can conveniently stretch the tissue suspension device into the guide needle tube from the guide hole on the handle and stretch out from the guide needle tube so as to fix the target tissue along the longitudinal direction at one time, on the other hand, the operator can conveniently fix the other end of the tissue suspension device on the locking device when holding the handle, and the tissue suspension device can be effectively prevented from slipping off.

In addition, in order to improve the comfort of the operator, based on the consideration of the hand feeling of the operator, the included angle between the first part and the second part of the handle is set to be a right angle or an obtuse angle instead of an acute angle, which is more beneficial to the smoothness of the operation of the operator.

In addition, the handle or the introducing needle tube and the handle are preferably integrally formed in consideration of the safety of the operation, so as to avoid unnecessary operation risks caused by the falling of part of the structure.

In addition, in order to further improve the safety of operation, the inventor of the application also optimizes the inner side of the handle and sets an anti-skidding structure.

In addition, considering the thickness of the target tissue and the skin tissue to be penetrated during the operation and also considering the situation of reducing the unnecessary damage of the human body caused by the mistaken penetration of the peripheral tissue of the target tissue, the length of the introducing needle tube is preferably between 100 and 400mm, and practically, the more precise selection can be carried out in the range according to different target tissues and target parts of the human body.

Also, in order to reduce damage to human tissue, the introducer needle tubes of the present application have a uniform inner diameter and a uniform outer diameter to avoid enlarging the tissue receiving area.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a simplified structural schematic view of a single use piercing introducer needle according to one embodiment of the present application;

the same or similar reference numbers in the drawings identify the same or similar structures.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Referring to fig. 1, fig. 1 is a schematic view illustrating a simple structure of a disposable puncture needle according to an embodiment of the present application.

In the operation, the disposable puncture guiding needle is matched with the tissue suspender for use, the puncture guiding needle can puncture target tissue of a human body, the tissue suspender extends into the punctured human body tissue from the needle tube of the puncture guiding needle, the target tissue is fixed by opening the tail end assembly, and an operator can conveniently perform related operation on a target object. When the procedure is over or fixation of the target tissue is no longer required, the target tissue is released by releasing the locking device and withdrawing the tissue hanger.

According to fig. 1, the present application provides a single use piercing introducer needle for introducing and securing a tissue suspension, comprising:

the needle tube of the lead-in needle 1 extends longitudinally and is hollow inside, and the front end of the needle tube of the lead-in needle 1 is provided with a bevel needle point;

a handle 2 for fixing the introduction needle tube 1, said handle 2 being provided with a guide hole and with a passage leading from the guide hole to the introduction needle tube 1, said passage enabling one end of the tissue hanger to enter the introduction needle tube 1 from the handle 2, and a freely openable and closable locking device 3 being provided in a region of a predetermined length from said guide hole, said locking device 3 being for locking the other end of the tissue hanger.

Wherein the introducer needle cannula 1 is preferably made of surgical grade steel to facilitate penetration of the targeted tissue and organ of the body.

Compared with the prior art, the beneficial effect of this application includes: compared with the prior art that the puncture needle and the locking device (the locking device is usually a simple infusion tube clamp) are separately designed, the disposable puncture lead-in needle of the application easily leads operators to be unable to find the locking device in time due to confusion in the operation process, or the tissue suspender is easy to slip into the body of a patient under the unfixed condition due to the slipping of the puncture needle, and other frequent unexpected results, the invention discloses a disposable puncture lead-in needle which is skillfully designed with a needle tube and a handle with a guide hole, a channel and the locking device through improvement, which can effectively reduce the confusion of the operation of the operators, and lead the operators to conveniently fix the other end of the tissue suspender extending into the tissue of the human body on the locking device of the disposable puncture needle, thereby effectively improving the safety and the smoothness of the whole operation, in particular comprising the following advantages:

(1) The design of handle for the operator can be steady hold the handle, and is more accurate to the control of leading-in needle, and the palm replaces the finger to exert oneself, transmits puncture power to leading-in needle more easily, makes the puncture process become more light.

(2) The design of the locking device on the handle can enable the tissue suspender to fix target tissue when being matched with the disposable tissue suspender for use, meanwhile, the tissue suspender can be driven to pull the target tissue by pulling the puncture guide-in needle, after the traction is completed, the guide-in needle can be easily withdrawn by loosening the locking device, and the operation is more rapid and convenient.

Preferably, to further enhance the safety of the operation, the safety of the channel is optimally designed, the aperture of the channel being equal or substantially equal to the outer diameter of the tissue hanger. Thus, under the condition that the tissue hanger can smoothly enter the channel and an operator does not have time to fix the other end of the tissue hanger on the locking device, the sliding speed of the tissue hanger to the body of the patient is reduced based on the friction force of the tissue hanger which is in close contact with the channel, and more reaction time is won for the operator.

Preferably, in order to further improve the safety of the operation, the handle 2 is shaped like a Chinese character 'ren', the first part parallel or substantially parallel to the introducing needle tube 1 and the second part with a preset included angle with the first part are included, the channel is arranged in the first part, the guide hole is arranged at the joint of the first part and the second part, and the locking device 3 is arranged on the second part. On one hand, the tissue suspension device is convenient for an operator to extend into the introducing needle tube 1 from the guide hole on the handle 2 and extend out of the introducing needle tube 1 at one time along the longitudinal direction so as to fix a target tissue, on the other hand, the operator can easily fix the other end of the tissue suspension device on the locking device 3 when holding the handle 2, and the tissue suspension device is effectively prevented from sliding.

Preferably, the preset included angle is greater than or equal to 90 degrees. In order to improve the comfort of the operator, the included angle between the first part and the second part of the handle 2 is set to be a right angle or an obtuse angle rather than an acute angle based on the consideration of the hand feeling of the operator, which is more beneficial to the smoothness of the operation of the operator.

Preferably, in order to make the tissue hanger enter the first portion more smoothly and the tissue hanger is fixed to the second portion more conveniently, the corner where the first portion and the second portion are connected is provided with a rounded chamfer in consideration of the operational smoothness and the comfort in the hand feeling of the operator.

Preferably, the locking device 3 comprises a movable clamping device, a clamping fastener, a movable insertion structure or a movable lock catch. The movable clamping device, the clamping buckle, the movable plug structure or the movable lock catch may be any structure suitable for the present application in the prior art, for example, a movable plug structure similar to CN201810072023.1, a clamping buckle of CN202011357939.5, a clamping device of CN202111416988.6, a lock catch structure in CN202210078351.9, etc., without limitation.

Preferably, the handle 2 is an integrally formed structure, or the introducing needle tube 1 and the handle 2 are integrally formed structures. This is because the handle 2 of the present application is preferably integrally formed, or the introducer needle tube 1 and the handle 2 are preferably integrally formed, in view of the safety of the surgical operation, so as to avoid unnecessary risk of the surgical operation due to the detachment of a part of the structure. Of course, the introducer needle tube 1 may be movably or fixedly connected to the handle 2 to allow for multiple punctures by replacing different introducer needle tubes 1 in consideration of environmental concerns. Wherein, the movable connection includes but not limited to various plugging, clamping and the like in the prior art, and the fixed connection includes but not limited to adhesion and the like.

Preferably, in order to further improve the safety of the operation, the inventor of the present application also optimizes the inner side of the handle 2, which inner side of the handle 2 is provided with an anti-slip structure. Including but not limited to features such as skid resistance or corrugated features.

Preferably, the length of the introduction needle tube 1 is preferably between 100 and 400mm in consideration of the thickness of the target tissue and the skin tissue to be penetrated during the surgical operation and in consideration of the situation of reducing unnecessary human body damage caused by erroneous penetration of the peripheral tissue of the target tissue, and practically, more precise selection can be made within this range according to different target tissues and target sites of the human body.

Preferably, in order to reduce the damage to the human tissue, the inner diameter of the introduction needle tube 1 of the present application is uniform and the outer diameter of the introduction needle tube 1 is uniform, so as to avoid enlarging the puncture area of the tissue.

It should be noted that fig. 1 is only a preferred embodiment of the present invention, and all equivalent alternatives or obvious modifications of the embodiments given in the description can be reasonably predicted by those skilled in the art, and all the objects of the present invention can be achieved and are also included in the protection scope of the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A single-use piercing introducer needle for introducing and securing a tissue hanger, comprising:

the needle tube of the introduction needle extends longitudinally and is hollow inside, and the front end of the needle tube of the introduction needle is provided with a bevel needle point;

a handle for fixing the needle tube of the introduction needle, the handle being provided with a guide hole and with a passage leading from the guide hole to the needle tube of the introduction needle, the passage enabling one end of the tissue hanger to enter from the handle into the needle tube of the introduction needle, and a freely openable and closable locking device for locking the other end of the tissue hanger being provided in a region of a predetermined length from the guide hole.

2. The single use piercing introducer needle of claim 1, wherein the bore of the channel is equal or substantially equal to the outer diameter of the tissue hanger.

3. The single use piercing introducer needle of claim 1, wherein the handle is in the form of a "chevron" shape without a tip, the chevron-shaped handle including a first portion parallel or substantially parallel to the introducer needle cannula and a second portion at a predetermined angle to the first portion, the passageway being disposed in the first portion, the guide opening being disposed at the junction of the first portion and the second portion, and the locking device being disposed on the second portion.

4. The single use needle of claim 3 wherein said predetermined included angle is greater than or equal to 90 degrees.

5. The single use piercing introducer needle of claim 3, wherein the corner where the first and second portions meet is provided with a rounded chamfer.

6. The single use piercing introducer needle of claim 1, wherein the locking device comprises a movable snap, a snap fastener, a movable plug, or a movable catch.

7. The single use piercing introducer of any of claims 1 to 6, wherein the handle is a unitary structure or the introducer needle cannula and the handle are a unitary structure.

8. The single use needle introducer of claim 1, wherein the handle is provided with an anti-slip structure on the inside.

9. The single use piercing introducer needle of claim 1, wherein the introducer needle cannula is between 100 mm and 400mm in length.

10. The single use piercing introducer needle of claim 1, wherein the introducer needle cannula has a uniform inside diameter and the introducer needle cannula has a uniform outside diameter.