CN209500431U - Lower resistance batching pig and lower resistance venous detaining needle - Google Patents

Lower resistance batching pig and lower resistance venous detaining needle Download PDF

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Publication number
CN209500431U
CN209500431U CN201821008322.0U CN201821008322U CN209500431U CN 209500431 U CN209500431 U CN 209500431U CN 201821008322 U CN201821008322 U CN 201821008322U CN 209500431 U CN209500431 U CN 209500431U
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China
Prior art keywords
batching pig
lower resistance
batching
catheter block
pig
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CN201821008322.0U
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Chinese (zh)
Inventor
乔小红
王友超
高占伟
任晓培
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Holy Light Medical Products Ltd By Share Ltd
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Holy Light Medical Products Ltd By Share Ltd
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Abstract

The utility model provides a kind of lower resistance batching pig and lower resistance venous detaining needle, lower resistance batching pig includes batching pig main body and is set to batching pig body interior for puncturing the hollow channel that passes through of needle tubing, the lower resistance batching pig is integrated injection molding or compression molding forms, and lower resistance venous detaining needle is the venous detaining needle with the lower resistance venous detaining needle.The utility model can not only effectively reduce the resistance of the withdraw of the needle and prevent liquid leakage, and simple process, the process for eliminating aperture, while can reduce exfoliation generation, easy to use, securely and reliably.

Description

Lower resistance batching pig and lower resistance venous detaining needle
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of lower resistance batching pig and lower resistance vein stay Set needle.
Background technique
Venous detaining needle is that patient establishes venous access, is suitable for long-term infusion patient, makes patient from puncturing repeatedly Pain is clinically widely recognized as and is applied convenient for rescue.
After clinically nursing staff sees blood back for patient's puncture using venous indwelling at present, needle tubing and indwelling will be first punctured Conduit is sent into blood vessel together, then withdraws from puncture needle tubing, in the blood vessel by inlying catheter indwelling.
In the prior art, there is the batching pig passed through for puncturing needle tubing, traditional batching pig is generally solid in catheter block Elastic material cock body, the frictional force that stainless steel punctures between needle tubing and batching pig in the withdraw of the needle is larger, and nursing staff often needs Overcome very big resistance that can just pull away puncture needle tubing, so the dynamics of hand is not easy to control, when plug easily cause it is micro- quiver, lead Cause the discomfort of patient.
In addition, in existing venous detaining needle in use, often due to the extraction of puncture needle tubing, batching pig cannot be fully sealed The hole or gap that leave after needle tubing is extracted are punctured, so as to cause the liquid of infusion or the blood of patient from the hole or gap of batching pig Outflow makes patient and medical staff form cross-infection, causes greatly to injure to patient and medical staff.
Furthermore the batching pig of traditional solid is needed by one of aperture process before insertion punctures needle tubing, in Tapping procedures It is easy to produce clast.Exfoliation once enters the blood vessel of human body with needle tubing, may seriously endanger the health of human body.
Summary of the invention
In order to solve the above problems existing in the present technology, the utility model provides a kind of lower resistance batching pig and have should The venous detaining needle of batching pig can not only effectively reduce the resistance of the withdraw of the needle and prevent liquid leakage, and simple process, eliminate The process of aperture, while exfoliation generation can be reduced, it is easy to use, securely and reliably.
Technical solution used by first purpose of the utility model:
Lower resistance batching pig, is set in the catheter block of venous detaining needle, passes through for the puncture needle tubing of venous detaining needle, Be characterized in that: the lower resistance batching pig include batching pig main body and be set to batching pig body interior for puncture needle tubing pass through Hollow channel, the lower resistance batching pig is integrated injection molding or compression molding forms.
Specifically, the batching pig main body is divided into batching pig front end, batching pig middle-end and batching pig rear end, before batching pig The end face at end to the direction position 0.5~1mm of thickness of middle-end is sealing solid, and the hollow channel is through before batching pig Hold the end face of the position 0.5~1mm of thickness to batching pig rear end.
Specifically, the hollow channel includes the principal piece channel close to batching pig rear end and the latter end close to batching pig front end Channel, the section in principal piece channel can be set as bracket, ellipse or the rectangle of round closure, and latter end channel is set as cone-shaped, end The internal diameter of Duan Tongdao is progressively smaller until closure from batching pig rear end to batching pig front end.
Specifically, end section is rounded or oval after the batching pig, the section of batching pig front end and batching pig middle-end Rounded, batching pig middle-end is a ring groove, and the outer perimeter of end section is greater than the periphery of batching pig front elevational sectional after batching pig It is long.
It specifically, is interference fit, batching pig rear end between the periphery of the batching pig front end and the internal chamber wall of catheter block Periphery and catheter block internal chamber wall between also for interference fit.
Specifically, the lower resistance batching pig is that elastomer macromolecule medical material integrated injection molding or compression molding form.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every The internal chamber wall of peripheral, the described catheter block from plug middle-end is mutually bonded, for lower resistance batching pig to be firmly secured at catheter block It is interior.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Technical solution used by second purpose of the utility model:
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, before catheter block End is equipped with inlying catheter, it is characterised in that: the lower resistance batching pig is equipped in catheter block, conduit base rear end, which is equipped with, to be worn Cross the hollow channel of the lower resistance batching pig and the puncture needle tubing through inlying catheter.
The utility model compared with prior art, has the advantages that
1, the setting of hollow channel reduces batching pig and punctures the frictional force between needle tubing, and the resistance of the withdraw of the needle is effectively reduced Power, and the batching pig for being equipped with hollow channel is integrated and is molded, the process for saving aperture, can effectively improve production effect Rate;
2, good seal performance, can effectively prevent because puncturing the leakage of medical fluid or blood generated when needle tubing exits, avoid pair The pollution or injury of medical staff or patient;
3, the exfoliation generated in puncture process can be effectively reduced;
4, design rationally, it is simple process, easy to operate, easy to use.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model lower resistance batching pig embodiment 1;
Fig. 2 is the enlarged diagram along line A-A in Fig. 1;
Fig. 3 is the enlarged diagram along line B-B in Fig. 1;
Fig. 4 is the structural schematic diagram of the utility model lower resistance batching pig embodiment 2;
Fig. 5 is the enlarged diagram along line A-A in Fig. 4;
Fig. 6 is the enlarged diagram along line B-B in Fig. 4.
Description of symbols: 1- batching pig main body, 11- batching pig front end, 111- batching pig front elevational sectional, 12- batching pig Middle-end, 13- batching pig rear end, end section after 131- batching pig, 2- hollow channel, 21- latter end channel, 22- principal piece channel, 221- Principal piece channel cross-section.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.
Embodiment 1
Lower resistance batching pig, is set in the catheter block of venous detaining needle, passes through for the puncture needle tubing of venous detaining needle, It is characterized in that: as shown in Figure 1, the lower resistance batching pig includes batching pig main body 1 and is set to batching pig body interior for wearing The hollow channel 2 that pricker pipe passes through, the lower resistance batching pig is integrated injection molding or compression molding forms.Hollow channel 2 is set It sets, compared with traditional solid batching pig, because there is deformation space, batching pig can be reduced to the extruding force for puncturing needle tubing, to reduce Frictional force, plug operation it is smooth, will not cause it is micro- quiver, effectively prevent causing the discomfort of patient.And the isolation containing hollow channel Plug is integrated injection molding or compression molding forms, and the process for eliminating punching can effectively improve production efficiency.
Specifically, the batching pig main body 1 is divided for batching pig front end 11, batching pig middle-end 12 and batching pig rear end 13, from The end face of batching pig front end 11 to the direction position 0.5~1mm of thickness of middle-end 12 is sealing solid, and the hollow channel 2 passes through It is through at the end face from 11 position 0.5~1mm of thickness of batching pig front end to batching pig rear end 13.It can be summarized simply as follows, the low-resistance Power batching pig includes longer hollow end and shorter solid-end, and hollow end is equipped with hollow channel, and solid-end seals solid Do not set hollow channel.One side hollow end, which can reduce the resistance of the withdraw of the needle and reduce, in this way punctures exfoliation, another aspect solid-end Can after the withdraw of the needle close pinhole immediately, prevent liquid leakage.
Specifically, the hollow channel 2 includes close to the principal piece channel 22 of batching pig rear end and close to batching pig front end Latter end channel 21, latter end channel 21 are set as cone-shaped, and the internal diameter in latter end channel 21 is along batching pig middle-end 12 to batching pig front end 11 Direction be progressively smaller until closure, as shown in Fig. 2, principal piece channel cross-section 221 is set as round.In order to make hollow end gradually transition To solid body end, so devising cone-shaped channel.The cone-shaped channel is also beneficial to make to puncture needle tubing by hollow simultaneously End across solid-end when keep direction without departing from.
Specifically, the batching pig main body 1 is cylindrical, and batching pig middle-end 12 is a ring groove, such as Fig. 2 and Fig. 3 institute Show, the outer perimeter of end section 131 is greater than the outer perimeter of batching pig front elevational sectional 111 after batching pig.In order to effectively be closed after the withdraw of the needle The hollow channel of batching pig rear end prevents liquid leakage, so the outer diameter of batching pig rear end is set greater than batching pig front end Even if the outer perimeter of end section is greater than the outer perimeter of batching pig front elevational sectional after outer diameter batching pig, batching pig rear end is increased with this Magnitude of interference is to increase catheter block to the centripetal extruding force of batching pig rear end, the needle that batching pig rear end leaves when exiting puncture needle It closes and is closed completely immediately in hole.
It specifically, is interference fit between the periphery of the batching pig front end 11 and the internal chamber wall of catheter block, after batching pig It is also interference fit between the periphery at end 13 and the internal chamber wall of catheter block.
Specifically, the lower resistance batching pig is made of elastomer macromolecule medical material.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every The internal chamber wall of peripheral, the described catheter block from plug middle-end 12 is mutually bonded, for lower resistance batching pig to be firmly secured at conduit In seat.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, before catheter block End is equipped with inlying catheter, it is characterised in that: the lower resistance batching pig is equipped in catheter block, conduit base rear end, which is equipped with, to be worn Cross the hollow channel of the lower resistance batching pig and the puncture needle tubing through inlying catheter.
Embodiment 2
As shown in figure 4, the lower resistance batching pig includes batching pig main body 1 and is set to batching pig body interior for puncturing The hollow channel 2 that needle tubing passes through, the lower resistance batching pig is integrated injection molding or compression molding forms.
Specifically, the batching pig main body 1 is divided for batching pig front end 11, batching pig middle-end 12 and batching pig rear end 13, from The end face of batching pig front end 11 to the direction position 0.5~1mm of thickness of middle-end 12 is sealing solid, and the hollow channel 2 passes through It is through at the end face from 11 position 0.5~1mm of thickness of batching pig front end to batching pig rear end 13.
Specifically, the hollow channel 2 includes close to the principal piece channel 22 of batching pig rear end and close to batching pig front end Latter end channel 21, latter end channel 21 are set as cone-shaped, and the internal diameter in latter end channel 21 is along batching pig middle-end 12 to batching pig front end 11 Direction be progressively smaller until closure, as shown in figure 5, principal piece channel cross-section 221 be set as closure bracket.
Specifically, as shown in figure 5, end section 131 is oval after the batching pig, batching pig front end 11 is cylindrical, Batching pig middle-end 12 is a ring groove.As shown in Figure 5 and Figure 6, before the outer perimeter of end section 131 is greater than batching pig after batching pig The outer perimeter of end section 111, herein can be by being equal to batching pig front end for the minor axis length of end section after batching pig The outer diameter in section, to achieve the purpose that make the outer perimeter of end section after batching pig to be greater than the outer perimeter of batching pig front elevational sectional, Other methods can be passed through.
It specifically, is interference fit between the periphery of the batching pig front end 11 and the internal chamber wall of catheter block, after batching pig It is also interference fit between the periphery at end 13 and the internal chamber wall of catheter block.
Specifically, the lower resistance batching pig is made of elastomer macromolecule medical material.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every The internal chamber wall of peripheral, the described catheter block from plug middle-end 12 is mutually bonded, for lower resistance batching pig to be firmly secured at conduit In seat.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, before catheter block End is equipped with inlying catheter, it is characterised in that: the lower resistance batching pig is equipped in catheter block, conduit base rear end, which is equipped with, to be worn Cross the hollow channel of the lower resistance batching pig and the puncture needle tubing through inlying catheter.
The present embodiment the difference from embodiment 1 is that, as shown in figure 5, end section 131 is oval after the batching pig, Principal piece channel cross-section 221 is in closed bracket.
Embodiment 3
The present embodiment unlike the first embodiment, by principal piece channel cross-section 221 be set as closure bracket, ellipse or Rectangle, it is other identical with embodiment 1.
Embodiment 4
The present embodiment is set as round, ellipse or rectangle as different from Example 2, by principal piece channel cross-section 221, other It is identical with embodiment 2.
The utility model is not limited to above-mentioned embodiment, anyone can obtain it under the enlightenment of the utility model His various forms of products, however, make any variation in its shape or structure, it is all have it is same as the present application or similar Technical solution, all fall within the protection scope of the utility model.

Claims (8)

1. lower resistance batching pig, is set in the catheter block of venous detaining needle, passed through for the puncture needle tubing of venous detaining needle, it is special Sign is: the lower resistance batching pig include batching pig main body (1) and be set to batching pig body interior for puncture needle tubing pass through Hollow channel (2), the lower resistance batching pig is integrated injection molding or compression molding forms.
2. lower resistance batching pig according to claim 1, it is characterised in that: the batching pig main body (1) is divided into batching pig Front end (11), batching pig middle-end (12) and batching pig rear end (13), the side from the end face of batching pig front end (11) to middle-end (12) To the position 0.5~1mm of thickness be sealing solid, the hollow channel (2) through from batching pig front end (11) thickness 0.5~ The end face of the position 1mm to batching pig rear end (13).
3. lower resistance batching pig according to claim 2, it is characterised in that: the hollow channel (2) includes close to isolation Fill in the principal piece channel (22) of rear end (13) and the latter end channel (21) close to batching pig front end (11), the section of principal piece channel (22) (221) it can be set as bracket, ellipse or the rectangle of round closure, latter end channel (21) are set as cone-shaped, latter end channel (21) Internal diameter be progressively smaller until closure from batching pig rear end (13) to batching pig front end (11).
4. lower resistance batching pig according to claim 3, it is characterised in that: end section (131) is in circle after the batching pig Shape or ellipse, batching pig front elevational sectional (111) is rounded, and batching pig middle-end (12) is a ring groove, and batching pig rear end is cut The outer perimeter in face (131) is greater than the outer perimeter of batching pig front elevational sectional (111).
5. lower resistance batching pig according to claim 4, it is characterised in that: the batching pig front end (11) periphery with lead It is interference fit between the internal chamber wall of tube socket, also matches between the periphery of batching pig rear end (13) and the internal chamber wall of catheter block for interference It closes.
6. lower resistance batching pig according to claim 1, it is characterised in that: the lower resistance batching pig is by elastomer high score Sub- medical material is made.
7. lower resistance batching pig according to claim 5, it is characterised in that: the internal chamber wall of the ring groove and catheter block Between have UV glue-line, the UV glue-line is mutually be bonded with the internal chamber wall of peripheral, the described catheter block of batching pig middle-end (12) respectively, For lower resistance batching pig to be firmly secured in catheter block, the catheter block is equipped with the sprue gate for UV glue to be perfused.
8. lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, catheter block front end Equipped with inlying catheter, it is characterised in that: be equipped in the catheter block lower resistance as described in any in claim 1 to 7 every From plug, conduit base rear end is equipped with the hollow channel (2) across the lower resistance batching pig and through the puncture of inlying catheter Needle tubing.
CN201821008322.0U 2018-06-28 2018-06-28 Lower resistance batching pig and lower resistance venous detaining needle Active CN209500431U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815630A (en) * 2018-06-28 2018-11-16 圣光医用制品股份有限公司 Lower resistance batching pig and lower resistance venous detaining needle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815630A (en) * 2018-06-28 2018-11-16 圣光医用制品股份有限公司 Lower resistance batching pig and lower resistance venous detaining needle

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