CN217138937U

CN217138937U - Needle cylinder negative pressure holding device

Info

Publication number: CN217138937U
Application number: CN202123220194.0U
Authority: CN
Inventors: 何佩娟
Original assignee: Ningbo Women and Children Hospital
Current assignee: Ningbo Women and Children Hospital
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-08-09
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a needle cylinder negative pressure retaining device, including needle cylinder and scalable anchor clamps, the needle cylinder includes empty section of thick bamboo handle and piston handle, scalable anchor clamps include first sleeve and second sleeve that can slide relatively, one end cover of second sleeve is located the one end outside of first sleeve, the empty section of thick bamboo handle of other end centre gripping of first sleeve, the piston handle is held to the other end centre gripping of second sleeve, be equipped with a plurality of elastic protrusions who arranges along first sleeve axis direction on the first sleeve lateral wall, be equipped with a plurality of through-holes with elastic protrusion phase-match on the second sleeve lateral wall; compared with the prior art, the utility model discloses a cylinder negative pressure holding device can be through the relative position of the empty section of thick bamboo of adjustment and piston to make an empty section of thick bamboo and piston keep relatively fixed, so that form the negative pressure in the cylinder, through the joint of the protruding and the telescopic through-hole of second of first telescopic elasticity, can make and keep long-time negative pressure in the cylinder, and easily adjust negative pressure intensity, thereby liberation nurse's both hands, alleviate nurse's work load.

Description

Needle cylinder negative pressure holding device

Technical Field

The utility model relates to a clinical medical treatment technical field especially relates to a cylinder negative pressure retaining device.

Background

In clinical medicine, a central venous catheter is filled with drugs or blood during use, and due to changes in pressure, temperature and flow rate, drugs or blood in the catheter can form drug emboli or blood emboli, so that the catheter is blocked. In general, when a catheter is blocked, thrombolytic drugs cannot be directly injected into the catheter to react with a drug-containing embolus or a blood-containing embolus, and only a needle cylinder is adopted to keep the empty cylinder of the needle cylinder at negative pressure so as to suck the drug-containing embolus or the blood-containing embolus. But the time required for suction is long, increasing the workload of the nurse.

SUMMERY OF THE UTILITY MODEL

The utility model provides a needle cylinder negative pressure holding device for solving the defects of the prior art, which can keep the negative pressure of the needle cylinder for a long time and liberate hands of nurses.

The technical solution of the utility model is realized through following mode: the utility model provides a cylinder negative pressure holding device, includes cylinder and scalable anchor clamps, the cylinder includes empty section of thick bamboo handle and piston handle, scalable anchor clamps include first sleeve and the second sleeve of relative slip, the first telescopic one end outside is located to the telescopic pot head of second, the empty section of thick bamboo handle of first telescopic other end centre gripping, the telescopic other end centre gripping piston handle of second, be equipped with a plurality of elastic bulge who arranges along first sleeve axis direction on the first sleeve lateral wall, be equipped with a plurality ofly on the second sleeve lateral wall and elastic bulge assorted through-hole.

Compared with the prior art, the utility model discloses a cylinder negative pressure holding device, but through set up relative slip's first sleeve and second sleeve on scalable anchor clamps, and with empty section of thick bamboo handle in the cylinder and piston handle respectively with first sleeve and second sleeve joint, can be through the relative position of the empty section of thick bamboo of adjustment and piston, and make empty section of thick bamboo and piston keep relatively fixed, so that form the negative pressure in the cylinder, the joint through the protruding elastic bulge of first telescopic and the telescopic through-hole of second, can make and keep long-time negative pressure in the cylinder, and easily adjust negative pressure intensity, thereby liberation nurse's both hands, alleviate nurse's work load.

Furthermore, the number of the elastic protrusions is 1-3, the number of the through holes is 2-6, and the distance between every two adjacent elastic protrusions is 2 times that between every two adjacent through holes, so that the connection stability of the first sleeve and the second sleeve is enhanced.

Preferably, the number of the elastic protrusions is 3, and the number of the through holes is 6.

Further, the first sleeve and the second sleeve are relatively displaced by the distance between adjacent elastic protrusions or the distance between adjacent through holes, and the syringe sucks or discharges 1/5 the volume of the syringe, so as to quantitatively adjust the negative pressure intensity of the syringe.

Furthermore, a first clamping part is arranged at the other end of the first sleeve, a first transverse groove is formed in the transverse side wall of the first clamping part, and the first transverse groove is connected with the side edge of the hollow cylinder handle in a clamped mode so as to limit the vertical movement of the hollow cylinder handle.

Further, the other end of the second sleeve is provided with a second clamping portion, a second transverse groove is formed in the transverse side wall of the second clamping portion, and the second transverse groove is connected with the side edge of the piston handle in a clamped mode to limit vertical movement of the piston handle.

Preferably, the width of the second clamping part is larger than that of the first clamping part, so that the piston handle with the narrower side width is clamped with the second transverse groove.

Preferably, the depth of the second transverse groove is greater than the depth of the first transverse groove to match piston shanks of different lateral widths.

Further, the cross section of the first sleeve and the cross section of the second sleeve are matched with each other to form a circle or a polygon, so that different syringe profiles can be adapted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the syringe negative pressure maintaining device of the present invention;

FIG. 2 is a perspective view of the syringe negative pressure maintaining device according to the present invention;

FIG. 3 is a schematic structural view of the syringe negative pressure retaining device of the present invention after the first sleeve and the second sleeve are completely engaged;

FIG. 4 is a perspective view of the syringe negative pressure retaining device of the present invention after the first sleeve and the second sleeve are completely engaged;

fig. 5 is a schematic structural view of the retractable clamp in the syringe negative pressure holding device of the present invention.

Description of reference numerals: 1. the syringe comprises a syringe body, 100, an empty syringe handle, 110, a piston handle, 2, a telescopic clamp, 200, a first sleeve, 201, an elastic protrusion, 202, a first clamping part, 203, a first transverse groove, 210, a second sleeve, 211, a through hole, 212, a second clamping part, 213 and a second transverse groove.

Detailed Description

In the present invention, the terms "one end", "the other end", "the side wall", "the side", "the lateral direction", "the vertical direction", and the like indicate the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only used for explaining the relative positional relationship between the respective members or the constituent parts, and the specific installation orientation of the respective members or the constituent parts is not particularly limited. Also, some of the above terms may be used to indicate other meanings in addition to the orientation or positional relationship. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection; may be directly connected, or indirectly connected through intervening media, or may be in communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different components or elements and are not used to indicate or imply the relative importance or number of the indicated components or elements. "plurality" means two or more unless otherwise specified.

As shown in fig. 1-5, the utility model provides a syringe negative pressure holding device, including syringe 1 and scalable anchor clamps 2, syringe 1 includes empty section of thick bamboo handle 100 and piston handle 110, scalable anchor clamps 2 include first sleeve 200 and second sleeve 210 that can relative slip, the one end outside of first sleeve 200 is located to one pot head of second sleeve 210, the empty section of thick bamboo handle 100 of other end centre gripping of first sleeve 200, the other end centre gripping piston handle 110 of second sleeve 210, be equipped with 3 elastic bulge 201 of arranging along first sleeve 200 axis direction on the first sleeve 200 lateral wall, be equipped with 6 and elastic bulge 201 assorted through-hole 211 on the second sleeve 210 lateral wall, adjacent elastic bulge 201 interval is 2 times of adjacent through-hole 211 interval to strengthen first sleeve and the telescopic connection stability of second. Compared with the prior art, the utility model discloses a syringe negative pressure holding device, but through set up relative slip's first sleeve 200 and second sleeve 210 on scalable anchor clamps 2, and with empty section of thick bamboo handle 100 in the syringe 1 and piston handle 110 respectively with first sleeve 200 and second sleeve 210 joint, can be through the relative position of adjustment empty section of thick bamboo and piston, and make empty section of thick bamboo and piston keep relatively fixed, so that form the negative pressure in the syringe 1, the joint of the elastic bulge 201 through first sleeve 200 and second sleeve 210's through-hole 211, can make and keep long-time negative pressure in the syringe 1, and easily adjust negative pressure intensity, thereby liberation nurse's both hands, alleviate nurse's work load.

In another embodiment, the present invention provides a syringe negative pressure maintaining apparatus, wherein the first sleeve 200 and the second sleeve 210 are relatively displaced by a distance between the adjacent elastic protrusions 201 or a distance between the adjacent through holes 211, and the syringe sucks or discharges 1/5 syringe volume (100mL) of fluid, i.e., 20mL, to quantitatively adjust the negative pressure strength of the syringe 1. The other end of the first sleeve 200 is provided with a first clamping portion 202, a first transverse groove 203 is formed in the transverse side wall of the first clamping portion 202, and the first transverse groove 203 is clamped with the side edge of the hollow cylinder handle 100 to limit the vertical movement of the hollow cylinder handle 100. The other end of the second sleeve 210 is provided with a second clamping portion 212, a second transverse groove 213 is formed in the transverse side wall of the second clamping portion 212, and the second transverse groove 213 is clamped with the side edge of the piston handle 110 to limit the vertical movement of the piston handle 110. The width of the second clamping portion 212 is greater than the width of the first clamping portion 202, so that the piston rod 110 with the narrower side width is clamped with the second transverse groove 213. The depth of the second transverse slot 213 is greater than the depth of the first transverse slot 203 to match the piston shank 110 of different side widths.

This embodiment is only for easy understanding the utility model discloses a technical scheme does not constitute the restriction to the protection scope of the utility model, all do not break away from the utility model discloses technical scheme's content or basis the utility model discloses a technical entity all still belongs to the utility model discloses within the protection scope to any simple modification, the equivalent change and the decoration of doing to above scheme.

Claims

1. The utility model provides a syringe negative pressure holding device, characterized in that, includes syringe (1) and scalable anchor clamps (2), syringe (1) is including empty section of thick bamboo handle (100) and piston handle (110), scalable anchor clamps (2) are including first sleeve (200) and second sleeve (210) of relative slip, the pot head of second sleeve (210) is located the one end outside of first sleeve (200), the other end centre gripping of first sleeve (200) empty section of thick bamboo handle (100), the other end centre gripping of second sleeve (210) piston handle (110), be equipped with a plurality of edges on the first sleeve (200) lateral wall elastic bulge (201) that first sleeve (200) axis direction was arranged, be equipped with on second sleeve (210) lateral wall a plurality of with elastic bulge (201) assorted through-hole (211).

2. The syringe negative pressure maintaining device according to claim 1, wherein the number of the elastic protrusions (201) is 1 to 3, the number of the through holes (211) is 2 to 6, and the distance between the adjacent elastic protrusions (201) is 2 times the distance between the adjacent through holes (211).

3. The syringe negative pressure maintaining device according to claim 2, wherein the number of the elastic protrusions (201) is 3, and the number of the through holes (211) is 6.

4. The syringe negative pressure retaining device according to claim 3, wherein the first sleeve (200) and the second sleeve (210) are relatively displaced by a distance adjacent to the elastic protrusion (201) or a distance adjacent to the through hole (211), and the syringe (1) sucks or discharges 1/5 the volume of the syringe (1).

5. The negative pressure maintaining device for the needle cylinder as claimed in claim 1, wherein a first clamping portion (202) is arranged at the other end of the first sleeve (200), a first transverse groove (203) is formed in a transverse side wall of the first clamping portion (202), and the first transverse groove (203) is clamped with a side edge of the empty cylinder handle (100).

6. The syringe negative pressure maintaining device according to claim 5, wherein a second clamping portion (212) is provided at the other end of the second sleeve (210), a second transverse groove (213) is provided on a transverse side wall of the second clamping portion (212), and the second transverse groove (213) is engaged with a side edge of the piston handle (110).

7. The syringe negative pressure retention device according to claim 6, characterized in that the width of the second grip portion (212) is greater than the width of the first grip portion (202).

8. The syringe negative pressure retention device of claim 6, characterized in that the depth of the second transverse slot (213) is greater than the depth of the first transverse slot (203).

9. The syringe negative pressure holding device according to claim 1, characterized in that the cross section of the first sleeve (200) and the cross section of the second sleeve (210) are matching circles or polygons.