CN210673416U - Interventional department is with safe type needle of wearing to hold - Google Patents

Abstract

The utility model discloses a needle is worn to intervene branch of academic or vocational study with safe type, which comprises a housin, the left side central point of casing puts the spiro union and has the sleeve, telescopic inner chamber left side bonds there is the sealing washer, both ends central point puts all to have seted up the rectangular channel along the left and right direction about the inner wall of casing, both sides central point puts all to have seted up first slide along the left and right direction about the inner wall of casing, the inner chamber of casing is pegged graft respectively from a left side to the right side and has spring and cylinder, and the right side of cylinder extends the inner chamber of casing, the equal screw connection in both ends left side has the first slider of pegging graft in the inner chamber left side with first slide around the cylinder, the. This intervene branch of academic or vocational study and wear needle of holding with safe type can realize nimble puncture, prevents that the pjncture needle from damaging other tissues when the puncture, avoids the blood vessel to break and bleeds etc. has improved the security of puncture, has alleviateed psychological burden for the doctor, great demand that has satisfied the abdominocentesis.

Description

Interventional department is with safe type needle of wearing to hold

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a needle is worn with safe type to intervention branch of academic or vocational study.

Background

The puncture needle is a common medical instrument, is mainly used for puncturing organs and tissues or injecting medicaments, is completed through the puncture needle when puncturing abdominal tumors or extracting effusion, sometimes needs to penetrate through multiple layers of tissues of a human body to reach a designated puncture position in the actual use process, but because the tip of the puncture needle is relatively sharp, other tissues are easily damaged, blood vessels are broken and bleed and the like, the injury is brought to patients, the trouble is brought to doctors, and the requirement of abdominal puncture is difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a needle is worn with safe type to intervene branch of academic or vocational study to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a safety puncture needle for interventional department comprises a shell, wherein a sleeve is screwed at the center position of the left side of the shell, a sealing ring is bonded at the left side of an inner cavity of the sleeve, rectangular grooves are formed in the center positions of the upper end and the lower end of the inner wall of the shell along the left-right direction, first slide ways are formed in the center positions of the front side and the rear side of the inner wall of the shell along the left-right direction, a spring and a cylinder are respectively inserted into the inner cavity of the shell from left to right, the right side of the cylinder extends out of the inner cavity of the shell, a first slide block inserted into the left side of the inner cavity of the first slide way is connected to the left side of the front end and the rear end of the cylinder through screws, a puncture needle is connected to the inner cavity of the cylinder in an interference fit manner, the left side of the puncture needle, the inner wall left and right sides of through-hole has all been seted up the second slide, the inner chamber of through-hole is pegged graft and is had the inserted bar, and the inner chamber of through-hole extends in the outside of inserted bar, both ends lean on inboard equal screwed connection to have the second slider of pegging graft with the inner chamber of second slide about the inserted bar, the equal screwed connection in upper and lower both ends left end of cylinder has the one end of spring leaf, the other end screwed connection of spring leaf has the fixture block of pegging graft with the through-hole.

Preferably, the left side of the sleeve is arc-shaped.

Preferably, the maximum distance of the first sliding block moving left and right in the first slide way is greater than the distance of the puncture needle extending out of the sleeve.

Preferably, the maximum distance of the second sliding block moving up and down in the second slide way is greater than the distance of the fixture block extending into the through hole.

Preferably, the outer side of the fixture block is triangular.

Compared with the prior art, the beneficial effects of the utility model are that: this intervene branch of academic or vocational study and wear needle with safe type, when the in-service use, press two inserted bars, can make inserted bar extrusion fixture block remove to the inboard and break away from with the through-hole under the guide effect of second slider, drive fixture block and pjncture needle through the cylinder and remove to the right side under the drive of spring, thereby make the pjncture needle get into in the sleeve, when the puncture, can prevent that the pjncture needle from stabbing tissues such as blood vessel, the cylinder is pushed to the left side, alright make the fixture block insert in the through-hole under the elastic force of spring leaf, can make the pjncture needle extend the sleeve and continue the puncture, thereby realize nimble puncture, prevent that the pjncture needle from damaging other tissues when the puncture, avoid vascular rupture hemorrhage etc., the security of puncture has improved, the psychological burden has.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

fig. 2 is a top cross-sectional view of the present invention;

fig. 3 is an enlarged view of the position a of the present invention.

In the figure: 1. the device comprises a shell, 2, a sleeve, 3, a sealing ring, 4, a rectangular groove, 5, a first slide way, 6, a spring, 7, a cylinder, 8, a first slide block, 9, a puncture needle, 10, a through hole, 11, a second slide way, 12, an inserted rod, 13, a second slide block, 14, a spring piece, 15 and a clamping block.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a safety puncture needle for interventional department comprises a shell 1, a sleeve 2 is screwed at the left central position of the shell 1, a sealing ring 3 is bonded at the left side of an inner cavity of the sleeve 2, the sealing ring 3 is made of non-toxic and tasteless elastic materials, the sealing ring 3 is always in close contact with a puncture needle 9, so that liquid in a patient body is prevented from entering the sleeve 2, rectangular grooves 4 are respectively formed in the central positions of the upper end and the lower end of the inner wall of the shell 1 along the left-right direction, first slide ways 5 are respectively formed in the central positions of the front side and the rear side of the inner wall of the shell 1 along the left-right direction, a cylinder 7 can be prevented from rotating when moving left and right through the matching of the first slide ways 5 and a first slide block 8, so that the puncture needle 9 is prevented from rotating to hurt tissues of the patient in the moving process, a spring 6 and a cylinder 7 are respectively inserted from, the spring 6 is a rotating spring, the elastic coefficient is 35N/CM, the spring 6 generates elastic deformation after being stretched or extruded, and is restored to an initial state after external force is removed, the spring 6 can provide elastic force to the cylinder 7 towards the right side, the left sides of the front end and the rear end of the cylinder 7 are both in screw connection with a first sliding block 8 which is spliced with the left side of an inner cavity of a first slide way 5, the inner cavity of the cylinder 7 is in interference fit connection with a puncture needle 9, a patient is punctured through the puncture needle 9, the left side of the puncture needle 9 extends out of the outer wall of the left side of the shell 1 and penetrates through the inner cavities of the sealing ring 3 and the sleeve 2, through holes 10 which are communicated with the inner cavity of the rectangular groove 4 are formed in the central positions of the outer walls of the upper end and the lower end of the shell 1, second slide ways 11 are formed in the left side and the right side of, the inner chamber of through-hole 10 is pegged graft and is had inserted bar 12, and the inner chamber of through-hole 10 extends in the outside of inserted bar 12, both ends lean on inboard equal screwed connection to have the second slider 13 of pegging graft with the inner chamber of second slide 11 about inserted bar 12, the equal screwed connection in upper and lower both ends left end of cylinder 7 has the one end of spring leaf 14, spring leaf 14 provides the elasticity of an outside lateral shifting for fixture block 15, be convenient for fixture block 15 to insert in through-hole 10, the other end screwed connection of spring leaf 14 has fixture block 15 of pegging graft with through-hole 10, can realize fixedly to cylinder 7 through the cooperation of fixture block 15 and through-hole.

Preferably, the left side of the sleeve 2 is arc-shaped, and the left side of the sleeve 2 is smoothly curved, so that the tissue such as a blood vessel is prevented from being damaged during puncture.

Preferably, the maximum distance of the first slide block 8 moving left and right in the first slide way 5 is larger than the distance of the puncture needle 9 extending out of the sleeve 2, so that the puncture needle 9 can completely enter the sleeve 2 when the cylinder 7 moves to the right under the elastic force of the spring 6.

Preferably, the maximum distance that the second slider 13 moves up and down in the second slideway 11 is greater than the distance that the latch 15 extends into the through hole 10, so that when the plunger 12 is pressed inward, the second slider 13 is prevented from limiting the movement of the plunger 12, and the plunger 12 can be pushed out of the through hole 10 by the latch 15, thereby releasing the fixation of the column 7.

Preferably, the outer side of the latch 15 is triangular, so that the surface area of the latch 15 is reduced, and the latch 15 can be inserted into the through hole 10 conveniently.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When the puncture needle is used, the tip of the puncture needle 9 is firstly punctured into a patient body, the sleeve 2 is guided to enter, when tissues such as blood vessels and the like appear in a puncture path, the two insertion rods 12 are pressed inwards, the second slide block 13 slides inwards along the second slide way 11, the insertion rods 12 push the fixture blocks 15 to move inwards to be separated from the through holes 10, at the moment, the spring 6 pushes the cylinder 7 to move towards the right side under the action of self elasticity, the puncture needle 9 moves towards the right side horizontally to be retracted into the sleeve 2 under the limiting action of the first slide block 8, then the sleeve 2 is pushed into the patient body, as the left side of the sleeve 2 is arc-shaped and has a large surface area, the tissues such as blood vessels and the like can be prevented from being punctured, when the left side of the sleeve 2 moves to a position needing puncturing, the cylinder 7 is pushed towards the left side, the fixture blocks 15 and the puncture needle 9 move towards the left, the puncture needle 9 pierces the tissue to be punctured, so that puncturing is realized, and the puncture needle 9 can retract into the sleeve 2 during puncturing, so that damage to the tissue such as blood vessels can be prevented, puncturing safety is improved, and wide popularization is facilitated.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "snap" and "pivot" and "snap" and "weld" and "screw" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a needle is worn with safe type to intervention branch of academic or vocational study, includes casing (1), its characterized in that: the left side center position of the shell (1) is in threaded connection with a sleeve (2), the left side of an inner cavity of the sleeve (2) is bonded with a sealing ring (3), the upper and lower center positions of the inner wall of the shell (1) are respectively provided with a rectangular groove (4) along the left and right directions, the front and rear center positions of the inner wall of the shell (1) are respectively provided with a first slide way (5) along the left and right directions, the inner cavity of the shell (1) is respectively inserted with a spring (6) and a cylinder (7) from left to right, the right side of the cylinder (7) extends out of the inner cavity of the shell (1), the left sides of the front and rear ends of the cylinder (7) are respectively in screw connection with a first slide block (8) inserted with the left side of the inner cavity of the first slide way (5), the inner cavity of the cylinder (7) is in interference fit connection with a puncture needle (9), the left side of the puncture needle (, the improved structure of the spring piece is characterized in that a through hole (10) communicated with an inner cavity of the rectangular groove (4) is formed in the center of the outer wall of the upper end and the lower end of the shell (1), a second slide way (11) is formed in the left side and the right side of the inner wall of the through hole (10), an inserting rod (12) is inserted into the inner cavity of the through hole (10), the outer side of the inserting rod (12) extends out of the inner cavity of the through hole (10), a second sliding block (13) inserted into the inner cavity of the second slide way (11) is connected to the left end and the right end of the inserting rod (12) through inner side screws, one end of the spring piece (14) is connected to the left end of the upper end and the lower end of the column body (7) through screws.

2. The interventional safety-type puncture needle according to claim 1, wherein: the left side of the sleeve (2) is arc-shaped.

3. The interventional safety-type puncture needle according to claim 1, wherein: the maximum distance of the first sliding block (8) moving left and right in the first slide way (5) is larger than the distance of the puncture needle (9) extending out of the sleeve (2).

4. The interventional safety-type puncture needle according to claim 1, wherein: the maximum distance of the second sliding block (13) moving up and down in the second slide way (11) is larger than the distance of the clamping block (15) extending into the through hole (10).

5. The interventional safety-type puncture needle according to claim 1, wherein: the outer side of the clamping block (15) is triangular.

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