CN210096552U

CN210096552U - Transfusion needle

Info

Publication number: CN210096552U
Application number: CN201920447155.8U
Authority: CN
Inventors: 简玉梅; 陈来龙; 邱愽; 梅绍伟; 卫彦伟
Original assignee: Jiangxi Hongda Medical Equipment Group Ltd Co
Current assignee: Jiangxi Hongda Medical Equipment Group Ltd Co
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-02-21
Anticipated expiration: 2029-04-03

Abstract

The utility model provides an infusion needle, includes needle file, hose, needle handle and needle tubing, the cover is equipped with the lag on needle handle and the needle tubing, is equipped with through-hole and slide rail in the lag, slide rail and through-hole UNICOM, the slide rail is equipped with first spacing protruding, dodge groove and the spacing protruding of second according to the preface on first rail wall including the first rail wall that is located the upper end and the second rail wall that is located the lower extreme, be equipped with stop part and recess according to the preface on the second rail wall, be equipped with the elasticity card in the recess. The utility model discloses before using, stop part and first spacing protruding block the needle handle, when needing to puncture, the needle handle slides first spacing protruding, elasticity card and the spacing protruding of second in proper order, and the spacing protruding block of second blocks the needle handle and makes the needle tubing expose the lag and carry out the venipuncture, and after the use, the needle handle slides in proper order spacing protruding, elasticity card and the first spacing protruding of second, first spacing protruding, elasticity card and stop part fix the needle handle and make it unable to slide, and at this moment, the needle tubing is acceptd in the through-hole, can not the roll-off with the operation personnel that stabs.

Description

Transfusion needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an infusion needle.

Background

At present, an intravenous infusion needle is mainly used for intravenous puncture infusion of clinical patients, and the main operation steps are as follows: and after the exhaust of the infusion apparatus is finished, the flow regulator is closed tightly, the venous infusion needle sheath is removed, the venous puncture is carried out, the infusion is started, after the infusion is finished, the venous infusion needle is pulled out, and the sheath is worn again and discarded. The sheath is small and slender, so that the sheath is easy to lose, and in addition, the inner diameter of the sheath is small, so that the needle tube is easy to insert in a deviated way when being aligned with the inner hole of the sheath, and the needle tube is easy to stab an operator to cause infection and even has the risk of secondary use.

Although the operation mode is clinically and gradually standardized, the infusion needle tube is cut off and placed in the edge tool box to prevent secondary use, the operation process is more complicated, and the exposed needle tube still easily stabs the operating personnel in the subsequent treatment process.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing an infusion needle, after using, can accommodate the needle tubing in the protective sheath, can not the roll-off to stab the operation personnel.

A transfusion needle comprises a needle seat, a hose, a needle handle and a needle tube which are sequentially connected, wherein a protective sleeve made of elastic materials is sleeved on the needle handle and the needle tube, a first clamping groove is formed in the upper end face of the needle handle, a second clamping groove is formed in the lower end face of the needle handle, a through hole penetrating through two ends of the needle handle and a sliding rail which extends axially and faces towards the needle seat and is open in the direction of the needle seat are arranged in the protective sleeve, the sliding rail is communicated with the through hole, the sliding rail comprises a first rail wall located at the upper end and a second rail wall located at the lower end, a first limiting protrusion, a avoiding groove and a second limiting protrusion are sequentially arranged on the first rail wall, the second limiting protrusion is used for clamping the needle handle and enabling the needle tube to be exposed out of the protective sleeve for venipuncture, a blocking part and a groove are sequentially arranged on the second rail wall, an elastic clamping piece is arranged in the groove, the elastic clamping piece corresponds to the avoiding groove, the needle handle is clamped between the blocking portion and the first limiting protrusion, the first limiting protrusion is located in the first clamping groove, after infusion is completed, the hose is pulled towards the needle base, and the needle handle is clamped between the blocking portion and the first limiting protrusion and the elastic clamping piece is clamped in the second clamping groove, so that the needle tube is contained in the through hole.

Compared with the prior art, in the transfusion needle of the utility model, before use, the blocking part and the first limit bulge block the needle handle, when puncture is needed, the operator fixes the protective sleeve by one hand and holds the needle handle by the other hand to enable the needle handle to sequentially slide through the first limiting protrusion, the elastic clamping piece and the second limiting protrusion, the second limiting protrusion clamps the needle handle and enables the needle tube to be exposed out of the protective sleeve for venipuncture, after the needle is used, an operator fixes the protective sleeve by one hand and holds the needle handle by the other hand to enable the needle handle to sequentially slide through the second limiting protrusion, the elastic clamping piece and the first limiting protrusion, the needle handle is fixed by the first limiting protrusion, the elastic clamping piece and the blocking part so as to be incapable of sliding, and at the moment, the needle tube is accommodated in the through hole and cannot slide out to stab an operator.

Further, the depth of the groove is larger than the thickness of the elastic card.

Further, the thickness of elasticity card by the middle part towards with the junction of recess bottom reduces gradually, and the thickness range of junction is 0.1 ~ 0.5 mm.

Furthermore, the end part of the elastic card forms a first inclined plane and a second inclined plane which are connected, when the infusion is completed, the first inclined plane is attached to the side surface of the second clamping groove, and the second inclined plane is attached to the bottom surface of the second clamping groove.

Further, first spacing protruding be located dodge the tip in groove, just first spacing protruding with dodge and connect with the mode of circular arc transition between the groove, first spacing protruding the thickness scope of first rail wall is 0.05 ~ 0.5 mm.

Furthermore, the end part of the opening end of the second rail wall is a guide-in inclined plane, the guide-in inclined plane is positioned at the end part of the blocking part, and the distance between the top end of the blocking part and the first rail wall is smaller than the thickness of the needle handle.

Further, the lag is including the first sheath and the second sheath that are connected, the position of first sheath is close to needle file and cross-section are square, first spacing protruding, dodge the groove, block portion and recess and all be located in the first sheath.

Further, the slide rail in the second sheath comprises a first rail, a transition rail and a second rail which are connected, the first rail is close to the first sheath, the horizontal height of the first rail is higher than that of the second rail, and the transition rail is obliquely arranged.

Furthermore, the second limiting protrusion is located in the second rail and protrudes out of the first rail wall, and the thickness range of the first rail wall is 0.05-0.5 mm.

Further, the protective sleeve is made of PP or PE materials.

Drawings

FIG. 1 is a schematic view of an assembly structure of an infusion needle before use in an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the protective cover of FIG. 1;

FIG. 3 is an enlarged cross-sectional view taken at A in FIG. 1;

FIG. 4 is a schematic view of an assembly structure of the infusion needle of FIG. 1 before puncturing;

FIG. 5 is a schematic view of an assembly structure of the infusion needle of FIG. 1 after use;

fig. 6 is an enlarged cross-sectional view at B in fig. 5.

Description of the main element symbols:

needle stand	10	Flexible pipe	11
				Needle handle	12	First card slot	121
Second card slot	122	Needle tube	13
				Protective sleeve	14	Through hole	141
Sliding rail	142	First rail wall	1421
				Second rail wall	1422	Lead-in inclined plane	14221
First limit projection	1423	Dodging groove	1424
				Second limit projection	1425	Barrier section	1426
Groove	1427	Elastic card	1428
				First inclined plane	14281	Second inclined plane	14282
First sheath	143	Second sheath	144
				First rail	145	Transition track	146
Second rail	147

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present invention provides an infusion needle, which includes a needle base 10, a flexible tube 11, a needle handle 12 and a needle tube 13 connected in sequence, wherein a protecting sleeve 14 is sleeved on the needle handle 12 and the needle tube 13.

It should be noted that, in this embodiment, the protecting sleeve 14 is made of an elastic material, so that the needle handle 12 and the needle tube 13 can move in the protecting sleeve 14. Further, the protective sleeve 14 is made of PP or PE material, because the PP and PE material has better toughness.

Referring to fig. 1, 3 and 6, a first engaging groove 121 is disposed on an upper end surface of the needle handle 12, and a second engaging groove 122 is disposed on a lower end surface of the needle handle 12, and the first engaging groove 121 and the second engaging groove 122 facilitate the protecting sleeve 14 to clamp and fix the needle handle 12.

Referring to fig. 1 to 6, a through hole 141 penetrating through both ends of the sheath 14 and a slide rail 142 extending axially and opening toward the needle base 10 are disposed in the sheath 14, the slide rail 142 is communicated with the through hole 141, the slide rail 142 includes a first rail wall 1421 located at an upper end and a second rail wall 1422 located at a lower end, a first limiting protrusion 1423, an avoiding groove 1424 and a second limiting protrusion 1425 are sequentially disposed on the first rail wall 1421, the second limiting protrusion 1425 is used for clamping the needle handle 12 and exposing the needle tube 13 out of the sheath 14 for venipuncture, a blocking portion 1426 and a groove 1427 are sequentially disposed on the second rail wall 1422, an elastic clamping piece 1428 is disposed in the groove 1427, and the elastic clamping piece 1428 corresponds to the avoiding groove 1424 and inclines toward the second limiting protrusion 1425.

It should be noted that, in this embodiment, the elastic latching piece 1428 is disposed in an inclined shape to facilitate pressing the elastic latching piece 1428 into the groove 1427 when the needle handle 12 slides away from the needle seat 10, and the elastic latching piece 1428 has elasticity, so that the elastic latching piece 1428 can be bounced under its own elastic force after the needle handle 12 slides over. Before use, the needle handle 12 is clamped between the blocking part 1426 and the first limit protrusion 1423, and the first limit protrusion 1423 is located in the first clamping groove 121; when puncture is needed, an operator fixes the protective sleeve 14 with one hand and holds the needle handle 12 with the other hand to enable the needle handle 12 to sequentially slide over the first limiting protrusion 1423, the elastic clamping piece 1428 and the second limiting protrusion 1425, and the second limiting protrusion 1425 clamps the needle handle 12 and enables the needle tube 13 to be exposed out of the protective sleeve 14 for venipuncture; after the infusion is completed, the hose 11 is pulled towards the needle base 10 until the needle handle 12 is clamped between the blocking portion 1426 and the first limiting protrusion 1423 and the elastic clamping piece 1428 is clamped in the second clamping groove 122, so that the needle tube 12 is accommodated in the through hole 141 and cannot slide out to stab an operator.

Referring to fig. 2, the depth of the recess 1427 is greater than the thickness of the elastic clamping piece 1428, so that when the needle handle 12 slides through the recess 1427, the elastic clamping piece 1428 can be accommodated in the recess 1427 after being pressed by the needle handle 12, without obstructing the sliding of the needle handle 12.

In another preferred embodiment of the present invention, the thickness of the elastic clamping piece 1428 is gradually decreased from the middle portion to the connection portion with the bottom of the groove 1427, so that the elastic clamping piece 1428 is bent toward the left and right ends after being pressed by the needle handle 12. In order to ensure the connection strength between the elastic clamping piece 1428 and the bottom of the groove 1427, the thickness of the connection between the elastic clamping piece 1428 and the bottom of the groove 1427 is 0.1-0.5 mm.

In another preferred embodiment of the present invention, the end of the elastic clamping piece 1428 forms a first inclined surface 14281 and a second inclined surface 14282 connected to each other, when the infusion is completed, the first inclined surface 14281 is attached to the side of the second engaging groove 122, the second inclined surface 14282 is attached to the bottom surface of the second engaging groove 122, at this time, the elastic clamping piece 1428 fixes the needle handle 12 between the blocking portion 1426 and the first limiting protrusion 1423, and the needle handle 12 cannot slide left and right.

Referring to fig. 2 again, in order to facilitate the needle handle 12 to be clamped, the first limiting protrusion 1423 is located at an end of the avoiding groove 1424, and the first limiting protrusion 1423 is connected to the avoiding groove 1424 in an arc transition manner. In order to facilitate the sliding of the needle handle 12, the thickness range of the first limiting protrusion 1423 protruding out of the first rail wall 1421 is 0.05-0.5 mm.

In another preferred embodiment of the present invention, the end of the open end of the second rail wall 1422 is a guiding inclined surface 14221, the guiding inclined surface 14221 is located at the end of the blocking portion 1426, the distance between the top end of the blocking portion 1426 and the first rail wall 1421 is smaller than the thickness of the needle handle 12, the guiding inclined surface 14221 is set to facilitate production and assembly, and the needle handle 12 slides between the top end of the blocking portion 1426 and the first rail wall 1421.

In another preferred embodiment of the present invention, the protecting sleeve 14 includes a first protecting sleeve 143 and a second protecting sleeve 144 connected to each other, the first protecting sleeve 143 is located close to the needle base 10 and has a square cross section, and the first limiting protrusion 1423, the avoiding groove 1424, the blocking portion 1426 and the groove 1427 are all located in the first protecting sleeve 143. Specifically, the cross section of the first protection sleeve 143 is square, so that the operator can conveniently hold the protection sleeve 14 with his fingers. Further, anti-slip lines for preventing slipping may be provided on the surface of the first shield 143.

In another preferred embodiment of the present invention, the slide rail 142 in the second sheath 144 comprises a first rail 145, a transition rail 146 and a second rail 147 connected to each other, the first rail 145 is close to the first sheath 143 and has a higher level than the second rail 147, the transition rail 146 is disposed obliquely, so that the needle handle 12 is inclined downward at an angle when located in the second rail 147, and is more fit to the skin of the patient when puncturing is performed.

It should be noted that the second limiting protrusion 1425 is located in the second track 147, and in order to facilitate the sliding of the needle handle 12, the thickness range of the second limiting protrusion 1425 protruding from the first track wall 1421 is 0.05 mm to 0.5 mm.

The utility model discloses the product is when the production equipment, will needle file 10, hose 11, needle handle 12 and needle tubing 13 bond the back in proper order, will needle tubing 13 follows through-hole 141 be equipped with the one end of leading-in inclined plane 14221 penetrates, because lag 14 has elasticity, so needle handle 12 can strut first rail wall 1421 and second rail wall 1422 to slide in the slide rail 142, at this moment, needle handle 12 is blocked stop 1426 with between the first spacing protruding 1423, just first spacing protruding 1423 card is in first draw-in groove 121, needle tubing 13 is acceptd in the through-hole 141.

When the utility model is used clinically, an operator fixes the protective sleeve 14 with one hand and holds the needle handle 12 with the other hand, and can slide the needle handle 12 through the first limiting protrusion 1423, the elastic clamping piece 1428 and the second limiting protrusion 1425 in sequence with little effort, the second limiting protrusion 1425 clamps the needle handle 12, at the moment, the needle tube 13 is completely exposed out of the protective sleeve 14, and the operator can hold the needle handle 12 for normal venipuncture infusion; after the infusion is completed, the operator fixes the protective sleeve 14 with one hand and holds the needle handle 12 with the other hand, and with a slight force, the needle handle 12 can slide over the second limit protrusion 1425, contact the elastic clamping piece 1428 which has been bounced and drive the elastic clamping piece 1428 to fold obliquely towards the blocking part 1426, then, the elastic card 1428 slides over the first limiting protrusion 1423 and is blocked by the blocking portion 1426, and is clamped in the second slot 122 (specifically, the first inclined surface 14281 is attached to the side surface of the second slot 122, and the second inclined surface 14282 is attached to the bottom surface of the second slot 122), the elastic clamp 1428 fixes the needle handle 12 between the stop 1426 and the first limit protrusion 1423, the needle handle 12 cannot slide left and right, and the needle tube 13 is accommodated in the through hole 141 and cannot slide out to stab an operator.

Compared with the prior art, in the transfusion needle, before and after use, the needle handle 12 can be fixed and the needle tube 13 can be contained in the through hole 141, thereby effectively preventing the needle point of the needle tube 13 from stabbing the operator.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an infusion needle, includes needle file, hose, needle handle and the needle tubing that connects gradually, its characterized in that: the needle holder is characterized in that a protective sleeve made of elastic materials is sleeved on the needle handle and the needle tube, a first clamping groove is formed in the upper end face of the needle handle, a second clamping groove is formed in the lower end face of the needle handle, a through hole penetrating through two ends of the needle holder and axially extending towards the protective sleeve are formed in the protective sleeve, the needle holder is provided with a sliding rail in an opening direction, the sliding rail is communicated with the through hole, the sliding rail comprises a first rail wall located at the upper end and a second rail wall located at the lower end, a first limiting protrusion, a avoiding groove and a second limiting protrusion are sequentially arranged on the first rail wall, the second limiting protrusion is used for clamping the needle handle and enabling the needle tube to be exposed out of the protective sleeve for venipuncture, a blocking part and a groove are sequentially arranged on the second rail wall, an elastic card is arranged in the groove, the elastic card corresponds to the avoiding groove and inclines towards the second limiting protrusion, and the needle handle is clamped between the blocking part, And the first limiting protrusion is positioned in the first clamping groove, after infusion is completed, the hose is pulled towards the needle base direction until the needle handle is clamped between the blocking part and the first limiting protrusion, and the elastic clamping piece is clamped in the second clamping groove, so that the needle tube is accommodated in the through hole.

2. The infusion needle according to claim 1, wherein the depth of the groove is greater than the thickness of the resilient clamping piece.

3. The infusion needle according to claim 1, wherein the thickness of the elastic clamping piece is gradually reduced from the middle part to the connection part with the bottom of the groove, and the thickness of the connection part is in a range of 0.1-0.5 mm.

4. The infusion needle according to claim 1, wherein the end of the elastic clamping piece is formed with a first inclined surface and a second inclined surface which are connected, when infusion is completed, the first inclined surface is attached to the side surface of the second clamping groove, and the second inclined surface is attached to the bottom surface of the second clamping groove.

5. The infusion needle according to claim 1, wherein the first limiting protrusion is located at an end of the avoiding groove, the first limiting protrusion and the avoiding groove are connected in a circular arc transition manner, and the thickness of the first limiting protrusion protruding out of the first rail wall ranges from 0.05 mm to 0.5 mm.

6. The infusion needle according to claim 1, wherein the end of the open end of the second rail wall is a lead-in bevel and the lead-in bevel is located at the end of a barrier, and the distance between the top end of the barrier and the first rail wall is smaller than the thickness of the needle handle.

7. The infusion needle according to any one of claims 1 to 6, wherein the protective sleeve comprises a first protective sleeve and a second protective sleeve which are connected, the first protective sleeve is located close to the needle base and has a square cross section, and the first limiting protrusion, the avoiding groove, the blocking part and the groove are located in the first protective sleeve.

8. The infusion needle according to claim 7, wherein the slide rail in the second sheath comprises a first rail, a transition rail and a second rail which are connected, the first rail is close to the first sheath and is higher in horizontal height than the second rail, and the transition rail is arranged obliquely.

9. The infusion needle according to claim 8, wherein the second limiting protrusion is located in the second track and protrudes beyond the first track wall in a thickness range of 0.05-0.5 mm.

10. Infusion needle according to any one of claims 1 to 6, wherein the protective sheath is made of PP or PE material.