CN211213418U

CN211213418U - Safe puncture outfit

Info

Publication number: CN211213418U
Application number: CN201921430265.XU
Authority: CN
Inventors: 江利民; 方章生; 何志平; 邱崇文
Original assignee: Hangzhou Xianrui Technology Co ltd
Current assignee: Hangzhou Xianrui Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-11
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to the technical field of puncture instruments, in particular to a safe puncture outfit, which comprises a sheath and a puncture needle movably arranged in the sheath, wherein the outer wall of the sheath is movably sleeved with a limiting plate which can move along the axial direction of the sheath, and the upper wall of the limiting plate is provided with a clamping sleeve movably arranged on the outer wall of the sheath; the clamping sleeve is provided with a driving part difference for driving the clamping sleeve to be tightly held on the outer wall of the sheath sleeve. By arranging the limiting plate, when the sheath penetrates into the abdominal cavity in the puncture abdominal cavity operation, the limiting plate can be blocked outside the abdominal cavity, so that the sheath can be prevented from sliding into the abdominal cavity, and the safety of the operation is guaranteed; and the limiting plate in the utility model can be along sheath axial displacement, consequently can adjust the position of limiting plate according to the required depth of insertion of sheath, and the suitability is better.

Description

Safe puncture outfit

Technical Field

The utility model relates to a puncture apparatus technical field especially relates to a safe type puncture ware.

Background

A puncture instrument is a surgical instrument that punctures the chest or abdominal wall and provides access to the body cavity for other surgical instruments. Currently, conventional puncture instruments generally include a sheath and a puncture needle; the puncture outfit penetrates all layers of the thoracoabdominal wall and enters a body cavity, and after the puncture outfit enters the body cavity, the puncture needle is drawn out, and the sheath can be used as a minimally invasive instrument channel for performing endoscopic surgery and endoscopic examination.

For example, utility model patent with application number CN201520712864.6 discloses a high gas tightness prevents reverse-pull abdominal cavity puncture ware, including the upper cover, the gas injection valve, the choke valve, the puncture sheath cover, the pjncture needle, upper cover and puncture sheath cover are fixed to be linked to each other, the gas injection valve is fixed to be set up on the puncture sheath cover, be used for controlling the inside injection of outside gas to the puncture sheath cover, the puncture needle activity is worn to locate in the bushing structure that upper cover and puncture sheath cover are constituteed, the choke valve is fixed to be set up in the puncture sheath cover, for the stepped structure that is formed by two valve butt splices, be used for preventing gas leakage when the pjncture needle is extracted from the puncture sheath. The utility model discloses both effectively increased the gas tightness of puncture ware, can make the pjncture needle again when extracting from puncture sheath cover internal, the choke valve can not be pulled to turning up by the reversal, has overcome the problem that can not go on smoothly because of puncture ware gas leakage causes the operation, can also effectively increase the pull resistance of sealing member, makes the valve be difficult to when the apparatus passes through repeatedly destroyed.

The puncture outfit described in the above scheme has the disadvantages that after the puncture is finished, the sheath is inserted into the abdominal cavity, and the surface of the existing sheath is smooth, so when the instrument is inserted into the abdominal cavity through the channel of the sheath, the sheath is easy to slide further into the abdominal cavity, and then the tissues or organs in the abdominal cavity are easy to be damaged, and the safety performance is poor, so the puncture outfit needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a safe type puncture ware.

In order to solve the technical problem, the technical scheme of the utility model is that:

a safety puncture outfit comprises a sheath and a puncture needle movably arranged in the sheath, wherein a limiting plate capable of moving along the axial direction of the sheath is movably sleeved on the outer wall of the sheath, and a clamping sleeve movably arranged on the outer wall of the sheath is arranged on the upper wall of the limiting plate; and a driving piece for driving the clamping sleeve to be tightly held on the outer wall of the sheath sleeve is arranged on the clamping sleeve.

By arranging the limiting plate, when the sheath penetrates into the abdominal cavity in the puncture abdominal cavity operation, the limiting plate can be blocked outside the abdominal cavity, so that the sheath can be prevented from sliding into the abdominal cavity, and the safety of the operation is guaranteed; and the limiting plate in the utility model in this market is that can follow sheath axial displacement, consequently can adjust the position of limiting plate according to the required depth of insertion of sheath, and the suitability is better.

The utility model discloses further set up to: the clamping sleeve comprises a sliding ring which is movably arranged on the outer wall of the sheath in a penetrating mode, the lower wall of the sliding ring is fixedly connected with the limiting plate, and a plurality of clamping jaws which are distributed on the upper wall of the sliding ring in a circumferential array mode and used for holding the outer wall of the sheath tightly, wherein the clamping jaws are obliquely arranged towards one side of the central axis of the sheath.

Through the arrangement, when the limiting plate needs to be fixed, only the clamping jaws are used for tightly holding the sheath, and the position of the limiting plate can be more stable and is difficult to loosen due to the fact that the clamping jaws are tightly held; and the clamping jaws are distributed in an array, so that the sheath is stressed more uniformly when being clamped by the clamping jaws, and the damage of the clamping jaws to the sheath can be reduced.

The utility model discloses further set up to: the driving piece comprises a movable ring which is in threaded connection with the outer wall of the sliding ring, wherein the upper part of the movable ring is gradually gathered towards the middle to form a conical clasping ring.

Through the setting, when the limiting plate is locked to needs, only need rotatory movable ring, make the movable ring downstream, and then drive and hold the hoop downstream, and hold the hoop and be the taper, so along with holding the hoop downstream, hold the hoop and can break the extrusion clamping jaw to make the clamping jaw support tightly on sheath cover outer wall, know by this process, can lock the limiting plate under the condition with the help of not the instrument.

The utility model discloses further set up to: the outer wall of the slip ring is provided with a male thread section, and the inner side wall of the movable ring is provided with a female thread section matched with the male thread section.

Through the arrangement, the movable ring can be driven to move up and down only by rotating the sliding ring.

The utility model discloses further set up to: the inner side wall of the upper part of the clamping jaw protrudes inwards to form a protruding part used for holding the sheath tightly, wherein a rubber pad is fixedly connected to the inner side wall of the protruding part.

Through the arrangement, the sheath can be better held tightly by the convex part, and the rubber pad is arranged to increase friction and play a role in buffering to prevent the sheath from being crushed.

The utility model discloses further set up to: the outer wall of the movable ring is provided with a plurality of convex patterns which are distributed along the circumferential direction of the movable ring in an array manner.

The friction force between the hand and the movable ring is increased by arranging the convex lines, so that the movable ring can rotate more smoothly.

Compare prior art, the utility model has the advantages that:

by arranging the limiting plate, when the sheath penetrates into the abdominal cavity in the puncture abdominal cavity operation, the limiting plate can be blocked outside the abdominal cavity, so that the sheath can be prevented from sliding into the abdominal cavity, and the safety of the operation is guaranteed; and the limiting plate in the utility model can be along sheath axial displacement, consequently can adjust the position of limiting plate according to the required depth of insertion of sheath, and the suitability is better.

Drawings

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

FIG. 2 is an enlarged view at the limiting plate;

FIG. 3 is a schematic view of the clamping sleeve;

FIG. 4 is a schematic structural view of the driving member;

fig. 5 is a sectional view at the position of the restriction plate.

Reference numerals: 1. a sheath; 2. puncturing needle; 3. a limiting plate; 4. a clamping sleeve; 41. a slip ring; 411. a male thread segment; 42. a clamping jaw; 421. a boss portion; 422. a rubber pad; 5. a drive member; 51. a movable ring; 511. a female thread segment; 512. a relief pattern; 52. a clasp ring.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Example (b):

referring to fig. 1, the present embodiment provides a safety puncture instrument, which includes a sheath 1 and a puncture needle 2 movably inserted into the sheath 1.

A limiting plate 3 capable of moving along the axial direction of the sheath 1 is movably sleeved on the outer wall of the sheath 1, and the limiting plate 3 in the embodiment can be a circular plate, or can be in other shapes, and is not limited herein;

the upper wall of the limiting plate 3 is provided with a clamping sleeve 4 movably arranged on the outer wall of the sheath sleeve 1 in a penetrating way; the clamping sleeve 4 is provided with a driving piece 5 for driving the clamping sleeve 4 to be tightly held on the outer wall of the sheath sleeve 1.

Specifically, as shown in fig. 2 and 3, the clamping sleeve 4 in this embodiment includes a sliding ring 41 movably disposed on the outer wall of the sheath 1, and a lower wall of the sliding ring is fixedly connected to the limiting plate 3, and a plurality of clamping jaws 42 circumferentially distributed on the upper wall of the sliding ring 41 for tightly holding the outer wall of the sheath 1, wherein the clamping jaws 42 are disposed obliquely to one side of a central axis of the sheath 1, and a passage for the sheath 1 to pass through is formed between all the clamping jaws 42 for facilitating the passage of the sheath 1; in this embodiment, the clamping jaw 42 may be an integrally formed structure with the sliding ring 41, and the clamping jaw 42 has a certain elasticity, and may be made of plastic, for example; in this embodiment, for better clamping effect, a protrusion 421 for holding the sheath 1 is formed at the inner side wall of the upper part of the clamping jaw 42 protruding inwards, wherein a rubber pad 422 is fixedly connected to the inner side wall of the protrusion 421, and the rubber pad 422 may be glued to the inner side wall of the protrusion 421.

As shown in fig. 4, the driving member 5 in this embodiment includes a movable ring 51 screwed on the outer wall of the sliding ring 41, wherein the upper portion of the movable ring 51 gradually converges toward the middle to form a conical clasping ring 52, wherein the clasping ring 52 is integrally formed with the movable ring 51, and the upper opening of the clasping ring 52 is accessible for the upper portion of the clamping jaw 42.

Specifically, the outer wall of the slip ring 41 has a male thread section 411, and the inner side wall of the movable ring 51 has a female thread section 511 adapted to the male thread section 411, so that the movable ring 51 can be screwed on the slip ring 41 by matching the male thread section 411 with the female thread section 511.

In order to facilitate the rotation of the movable ring 51, a plurality of ribs 512 are formed on the outer wall of the movable ring 51 in an array along the circumferential direction of the movable ring 51, so as to increase the friction between the human hand and the movable ring 51.

The implementation principle is as follows: firstly, the position of the limiting plate 3 is adjusted according to the depth of the sheath 1 which needs to be inserted into the abdominal cavity, specifically:

as shown in fig. 5 and 2, first, the movable ring 51 is rotated to move the movable ring 51 upward, so that the clasps 52 are far away from the clamping jaws 42, and without the squeezing of the clasps 52, the clamping jaws 42 do not abut against the sheath 1, so that the position of the limiting plate 3 can be moved up and down along the sheath 1;

when moving limiting plate 3 to required position, reverse rotation activity ring 51 makes activity ring 51 downstream, along with activity ring 51 constantly downstream, hold ring 52 on the activity ring 51 also can be along with constantly downstream, and then hold ring 52's inside wall constantly extrusion clamping jaw 42, thereby make clamping jaw 42 support tightly on sheath 1's outer wall, so sliding ring 41 and limiting plate 3 just can't freely move about along sheath 1, it is fixed to accomplish the location of limiting plate 3, next alright start puncture work, do not specifically describe here.

Therefore, by arranging the limiting plate 3, when the sheath 1 penetrates into the abdominal cavity in the puncture abdominal cavity operation, the limiting plate 3 can be blocked outside the abdominal cavity, so that the sheath 1 can be prevented from sliding into the abdominal cavity, and the safety of the operation is guaranteed; and the limiting plate 3 in the utility model is that can follow sheath 1 axial displacement, consequently can adjust the position of limiting plate 3 according to the required depth of insertion of sheath 1, and the suitability is better.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims

1. The utility model provides a safe type puncture ware, includes sheath (1) and activity and wears to establish pjncture needle (2) in sheath (1), its characterized in that: a limiting plate (3) capable of moving along the axial direction of the sheath (1) is movably sleeved on the outer wall of the sheath (1), and a clamping sleeve (4) movably arranged on the outer wall of the sheath (1) in a penetrating mode is arranged on the upper wall of the limiting plate (3); the clamping sleeve (4) is provided with a driving piece (5) for driving the clamping sleeve (4) to be tightly held on the outer wall of the sheath sleeve (1).

2. The safety lancet of claim 1, wherein: the clamping sleeve (4) comprises a sliding ring (41) which is movably arranged on the outer wall of the sheath (1) in a penetrating mode and fixedly connected with the limiting plate (3) through the lower wall, and a plurality of clamping jaws (42) which are distributed on the upper wall of the sliding ring (41) in a circumferential array mode and used for tightly holding the outer wall of the sheath (1), wherein the clamping jaws (42) are obliquely arranged on one side of the central axis of the sheath (1).

3. A safety lancet according to claim 2, wherein: the driving piece (5) comprises a movable ring (51) which is in threaded connection with the outer wall of the sliding ring (41), wherein the upper part of the movable ring (51) gradually converges towards the middle to form a conical clasping ring (52).

4. A safety lancet according to claim 3, wherein: the outer wall of the slip ring (41) is provided with a male thread section (411), and the inner side wall of the movable ring (51) is provided with a female thread section (511) matched with the male thread section (411).

5. A safety lancet according to any one of claims 2 to 4, wherein: the inner side wall of the upper part of the clamping jaw (42) protrudes inwards to form a protruding part (421) for holding the sheath (1), wherein a rubber pad (422) is fixedly connected to the inner side wall of the protruding part (421).

6. A safety lancet according to claim 3, wherein: the outer wall of the movable ring (51) is provided with a plurality of ribs (512) distributed in an array along the circumferential direction of the movable ring (51).