CN217066461U

CN217066461U - Puncture-preventing suture needle for operation

Info

Publication number: CN217066461U
Application number: CN202120519661.0U
Authority: CN
Inventors: 张雨; 陈东阳; 蒋青
Original assignee: Nanjing Drum Tower Hospital
Current assignee: Nanjing Drum Tower Hospital
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2022-07-29
Anticipated expiration: 2031-03-12

Abstract

The utility model relates to an operation is with preventing stabbing sewing needle, including needle body and nook closing member, set up the cavity with nook closing member looks adaptation in the needle body, the nook closing member sets up in the cavity, and the through-hole that the pinpoint portion that supplies the nook closing member exposes is seted up to the needle body front end, and the rectangular channel has been seted up to needle body afterbody concave surface, and the rectangular channel is worn out to the needle body afterbody and an organic whole is connected with presses the clamp plate, constitutes "7" font kink. The tail part of the cavity is a slope surface which is convenient for the needle core to slide. When the pressing plate is pressed, the needle tip part extends out. The tail end of the needle body is connected with a suture. The utility model discloses in, will pierce through the function of tissue and fixed suture separately through nook closing member and needle body, realize the effect of outstanding nook closing member when piercing through the tissue, the effect of outstanding needle body when taking the suture, the operation overall process of ingenious avoiding exposes sharp nook closing member, greatly reduces the risk that medical staff is wounded by the needle puncture. The utility model solves the problem of needle-prick injury of medical staff which is puzzled in clinic for a long time.

Description

Puncture-preventing suture needle for operation

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to operation is with preventing stabbing seam needle.

Background

The needle stick injury refers to skin injury caused by various needles such as injection needles and puncture needles in medical work. Statistically, 20 blood-borne diseases (including hepatitis B, hepatitis C, HIV, etc.) can be transmitted by needle stick injuries. Needle stick injuries bring huge psychological burden to medical staff, and once hematogenous infection occurs, serious consequences of long-term diseases, disability and even death are brought. Meanwhile, the health service system is explained, so that medical staff can leave a working position, the number of the medical staff is small, and the lack of sanitary human resources is caused.

Operating rooms are departments in which various sharp instruments are frequently used, medical staff are high-risk groups in which sharp injuries occur, 80% of injuries are caused by suture needle injuries, and incision suturing is an essential operation step in surgical operations. Therefore, how to effectively avoid or reduce the incidence rate of needle stick injuries in an operating room is a problem which people want to solve.

Existing measures for preventing needle stick injuries include: 1. the protective device for needle stick injury comprises simple articles for immediately isolating a bare needle, such as a puncture-resistant small medicine bottle, a rubber cover of an infusion bottle, a needle cap, a special sharp instrument box and the like. However, these protective devices can only prevent the needle tip from being protected when the needle is not in use, and avoid contacting medical personnel, and an intermediate link for disposing the needle is added, so that the needle tip can penetrate other objects for many times, the needle tip is easily blunted, and the skin suture is not easy to use. 2. The needle is passivated, so that even if the needle point carelessly contacts the skin of a medical worker during operation, the time for pricking the skin is delayed due to the fact that the needle point is dull, and the medical worker can be prevented from further pricking the skin in a reflective mode due to sufficient response time. However, the passivated needle is difficult to suture when suturing the skin, the suturing force is high, fatigue is easy to cause in the operation process of medical staff, and the fatigue increases the risk of puncture.

Disclosure of Invention

To the problems pointed out in the background art, the utility model provides a puncture-preventing suture needle for operation.

The utility model discloses the technical scheme who adopts does:

a puncture-proof suture needle for operation comprises a needle body and a needle core, wherein a cavity matched with the needle core is formed in the needle body, the needle core is arranged in the cavity, a through hole for exposing a needle tip part of the needle core is formed in the front end of the needle body, a rectangular groove is formed in the concave surface of the tail part of the needle body, and the tail part of the needle body penetrates out of the rectangular groove and is integrally connected with a pressing plate to form a 7-shaped bent part; the tail part of the cavity is a slope surface convenient for the needle core to slide; when the pressing plate is pressed, the needle tip part extends out; the tail end of the needle body is connected with a suture.

Furthermore, the needle body is semicircular, has a length of 36mm, and gradually increases in diameter from 1.2mm to 2mm from the front end to the tail end.

Further, the length of the needle core is 33mm, the length of the needle point part is 2mm, and the diameter of the needle point part is gradually increased from 0.1mm to 0.8 mm; the diameter of the main body part of the needle core except the needle tip part is transited from 0.8mm to 1.2 mm.

Further, the rectangular groove is 3mm long and 2mm wide and is 5mm away from the tail end of the needle body; the pressing plate is equal to the rectangular groove in size.

Furthermore, the tail end of the needle body is provided with a groove body used for connecting the suture line, and the suture line and the tail end of the needle body are fixed through clamping.

Furthermore, the needle body and the needle core are both made of 304 stainless steel.

The beneficial effects of the utility model reside in that:

the utility model discloses in, will pierce through the function of tissue and fixed suture separately through nook closing member and needle body, realize the effect of outstanding nook closing member when piercing through the tissue, the effect of outstanding needle body when taking the suture, the operation overall process of ingenious avoiding exposes sharp nook closing member, greatly reduces the risk that medical staff is wounded by the needle puncture. The utility model solves the problem of needle-prick injury of medical staff which is puzzled in clinic for a long time.

Drawings

FIG. 1 is a side cross-sectional view of the stab-resistant needle of the present invention;

FIG. 2 is a front cross-sectional view of the stab-resistant needle of the present invention;

reference numerals: 1-needle body, 2-needle core, 201-needle tip, 202-7-shaped bent part and 3-suture.

Detailed Description

The present invention will be described in further detail with reference to the drawings and specific examples.

As shown in fig. 1 and 2, a surgical puncture-proof needle comprises a needle body 1 and a needle core 2, a cavity matched with the needle core 2 is formed in the needle body 1, the needle core 2 is arranged in the cavity, a through hole for exposing a needle point part 201 of the needle core 2 is formed in the front end of the needle body 1, a rectangular groove is formed in a concave surface at the tail part of the needle body 1, the rectangular groove is penetrated out from the tail part of the needle body 1, and a pressing plate (used for increasing the contact area for holding the needle core 2 by a needle holder and controlling the needle core 2 to come in and go out of the needle body 1, so that the dual functions of promoting the sewing and preventing the needle puncture wound) are formed, and a 7-shaped bent part 203 is formed. The tail part of the cavity is a slope surface which is convenient for the needle core 2 to slide. When the pressing plate is pressed, the needle tip portion 201 is extended. The end of the needle body 1 is connected with a suture 3.

In this embodiment, the needle body 1 is semicircular and 36mm long, and the diameter gradually increases from 1.2mm to 2mm from the front end to the rear end.

The length of the needle core 2 is 33mm, the length of the needle tip part 201 is 2mm, and the diameter is gradually increased from 0.1mm to 0.8 mm. The diameter of the main body part of the stylet 2 except the needle tip part 201 is transited from 0.8mm to 1.2 mm.

The rectangular groove is 3mm long and 2mm wide and is 5mm away from the tail end of the needle body 1. The pressing plate is equal to the rectangular groove in size.

The needle body 1 and the needle core 2 are both made of 304 stainless steel.

The end of the needle body 1 is provided with a groove body for connecting the suture line 3, the suture line 3 is fixed with the end of the needle body 1 through the clamp pressure, and the purpose of clamping the suture line 3 is achieved by flattening the tail part of the needle body 1.

The utility model discloses a method for using of operation is with preventing stabbing seam needle does:

the utility model discloses a prevent stabbing needle of sewing up includes the nook closing member 2 and the outer needle body 1 of inlayer, and nook closing member 2 can do limited range's slip in needle body 1, and the pinpoint portion 201 of nook closing member 2 is very sharp, can penetrate the tissue, and the front end of needle body 1 is more blunt, is difficult for stabbing skin and other tissues. When in use, the needle holder is clamped at the rectangular groove of the needle body 1. When the needle holder applies pressure to hold the rectangular groove, the 7-shaped bent part 203 of the needle body 1 and the needle core 2 simultaneously bears the pressure, and meanwhile, the tail end of the needle core 2 bears the forward thrust action of the slope surface of the tail part of the cavity, so that the needle core 2 finally slides forwards relative to the needle body 1, the needle tip part 201 extends out to penetrate through the tissue to be sutured and is taken through the needle body 1 and the suture line 3 to finish the suturing.

After the sewing action is finished, the needle holder is loosened, the clamping force on the needle body 1 and the needle core 2 is removed, the 7-shaped bent part 203 emerges based on the elasticity of the needle core 2, and meanwhile, the needle tip part 201 retracts into the cavity of the needle body 1 (the needle tip part 201 can not touch or touch other objects, such as rubber gloves and skin of an operator, the needle core 2 retracts automatically due to the fact that the needle core 2 is not stressed), so that the needle stick injury is avoided.

It should be noted that the materials used for preparing the needle body and the needle core, the size and the angle of the needle body and the needle core can be adjusted according to the requirements of the size of the sewing needle and the thickness of the sewing thread, so as to prepare the anti-stabbing sewing needles with different models.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather is described in the embodiments and the description only to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims, the description and the equivalents thereof.

Claims

1. The puncture-preventing suture needle for the operation is characterized by comprising a needle body (1) and a needle core (2), wherein a cavity matched with the needle core (2) is formed in the needle body (1), the needle core (2) is arranged in the cavity, a through hole for exposing a needle point part (201) of the needle core (2) is formed in the front end of the needle body (1), a rectangular groove is formed in a concave surface of the tail part of the needle body (1), and the tail part of the needle body (1) penetrates out of the rectangular groove and is integrally connected with a pressing plate to form a 7-shaped bent part (203); the tail part of the cavity is a slope surface which is convenient for the needle core (2) to slide; when the pressing plate is pressed, the needle tip part (201) extends out; the tail end of the needle body (1) is connected with a suture (3).

2. The surgical stab-resistant suture needle as claimed in claim 1, wherein the needle body (1) has a semicircular shape with a length of 36mm, and a diameter gradually increasing from 1.2mm to 2mm from the front end to the rear end.

3. The surgical stab-resistant suture needle as claimed in claim 2, wherein the needle core (2) is 33mm long, the needle tip portion (201) is 2mm long, and the diameter is gradually increased from 0.1mm to 0.8 mm; the diameter of the main body part of the needle core (2) except the needle tip part (201) is transited from 0.8mm to 1.2 mm.

4. The surgical stab-resistant needle according to claim 3, wherein said rectangular groove has a length of 3mm, a width of 2mm, and a distance of 5mm from the end of the needle body (1); the pressing plate is equal to the rectangular groove in size.

5. The puncture-proof suture needle for the operation according to claim 1, wherein a groove body for connecting the suture line (3) is formed at the tail end of the needle body (1), and the suture line (3) and the tail end of the needle body (1) are fixed by clamping.

6. A surgical stab-resistant needle according to any one of claims 1 to 5, wherein said needle body (1) and said core (2) are both made of 304 stainless steel.