CN211611088U - Improved piston type analgesia pump after anesthesia operation - Google Patents
Improved piston type analgesia pump after anesthesia operation Download PDFInfo
- Publication number
- CN211611088U CN211611088U CN202020115645.0U CN202020115645U CN211611088U CN 211611088 U CN211611088 U CN 211611088U CN 202020115645 U CN202020115645 U CN 202020115645U CN 211611088 U CN211611088 U CN 211611088U
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- China
- Prior art keywords
- cylinder body
- piston
- push plate
- pump
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000036592 analgesia Effects 0.000 title claims abstract description 17
- 206010002091 Anaesthesia Diseases 0.000 title claims abstract description 11
- 230000037005 anaesthesia Effects 0.000 title description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000000202 analgesic effect Effects 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 29
- 239000007788 liquid Substances 0.000 abstract description 28
- 230000006872 improvement Effects 0.000 description 7
- 238000001802 infusion Methods 0.000 description 6
- 208000002193 Pain Diseases 0.000 description 4
- 230000036407 pain Effects 0.000 description 4
- 229940079593 drug Drugs 0.000 description 3
- 210000005077 saccule Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 1
- 208000004550 Postoperative Pain Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 210000003403 autonomic nervous system Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 210000002249 digestive system Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- 230000003054 hormonal effect Effects 0.000 description 1
- 231100000508 hormonal effect Toxicity 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000037324 pain perception Effects 0.000 description 1
- 230000004796 pathophysiological change Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
The utility model discloses an improved piston type post-anesthesia analgesia pump, which comprises a pump body, wherein the pump body is connected with a guide pipe, and the guide pipe is provided with a quantitative control device; the tail end of the catheter is provided with a joint; the pump body comprises a cylinder body, the front end of the cylinder body is closed, and a piston capable of sliding back and forth along the cylinder body is arranged in the cylinder body; a push plate is arranged in the cylinder body and behind the piston, and a driving spring is arranged between the push plate and the piston; the push plate is provided with a screw hole and also comprises a thread sleeve which is in thread fit with the screw hole on the push plate; the connecting rod penetrates through the threaded sleeve, and the threaded sleeve extends out of the front end of the connecting rod to be fixedly connected with the piston. The cylinder and the piston are used as a mechanism for continuously supplying the liquid medicine instead of the existing balloon. The cylinder body contains the liquid medicine, and the cylinder body is the rigidity, conveniently observes the surplus of liquid medicine. The thrust borne by the piston can be adjusted by adjusting the position of the push plate to compress or relax the drive spring, so that the flow can be adjusted. The liquid medicine is sucked like a syringe without the assistance of other equipment.
Description
Technical Field
The utility model relates to an analgesia pump.
Background
For a long time, postoperative pain is considered a natural phenomenon and is inevitable, and is only silently tolerated. In fact, pain can be controlled, reduced or achieved painless by medication or means. Pain, an undesirable stimulus, can cause a series of pathophysiological changes in the body, such as effects on the body's autonomic nervous system: the heart rate is accelerated, the respiration is rapid, and the blood pressure is increased; the mental changes cause dysphoria and depression, and then affect the functions of the digestive system and the recovery of physical strength; endocrine, hormonal effects, directly and indirectly, alter various body functions. Analgesia pumps are one means of controlling pain.
The analgesia pump is a liquid infusion device, can keep a stable concentration of anesthetic in blood, and can help achieve better analgesia treatment by using less drugs. The patient is generally allowed to self-press to add an additional infusion dose over a sustained infusion volume, thus the treatment is more individualized, consistent with the characteristic of a large individualized difference in pain perception.
Patent 2008202005423 discloses a disposable micro-analgesia pump, which comprises a main liquid storage pump, a drug feeding port, a quantitative control device, a connecting conduit, a liquid stopping clip and a needle head, wherein a balloon is made of elastic materials such as rubber, and the power for continuous filling is utilized by the action of the contractile force of the balloon. Before use, the liquid medicine is required to be extracted by a syringe and then transferred into the saccule. This procedure requires a significant amount of pressure to inflate the balloon, and therefore typically requires a specialized balloon pressure pump to fill. And the amount of the liquid medicine left in the balloon cannot be estimated, so that the amount of the liquid medicine which is infused into a human body cannot be calculated. In addition, the flow of the existing analgesia pump is generally regulated on a guide pipe by adopting a restrictor, and the regulation form is rough and difficult to master.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a piston anesthesia postoperative analgesia pump of improvement, its liquid medicine filling is simple and convenient, and flow control is more meticulous than current flow controller form, conveniently observes remaining liquid medicine simultaneously.
In order to solve the technical problems, the technical scheme of the utility model is to adopt an improved piston type postoperative analgesia pump, which comprises a pump body, wherein the pump body is connected with a conduit, and the tail end of the conduit is provided with a joint; the guide pipe is provided with a quantitative control device; the pump body comprises a cylinder body, the front end of the cylinder body is closed, and a piston capable of sliding back and forth along the cylinder body is arranged in the cylinder body; a push plate is arranged in the cylinder body and behind the piston, and a driving spring is arranged between the push plate and the piston; the push plate is provided with a screw hole and also comprises a thread sleeve which is in thread fit with the screw hole on the push plate; a rotating ring for driving the screw sleeve to rotate is fixed at the rear end of the screw sleeve, and the rotating ring is clamped at the rear part of the connecting ring and can rotate relative to the connecting ring; the front part of the connecting ring is provided with internal threads which are matched with external threads arranged at the rear end of the cylinder body; a connecting rod penetrates through the threaded sleeve, and the front end of the connecting rod extends out of the threaded sleeve to be fixedly connected with the piston; the cylinder is internally and axially provided with a guide table, and the push plate and the piston are both provided with grooves matched with the guide table. The utility model discloses utilize the barrel to hold the liquid medicine, the barrel is the rigidity, conveniently observes the surplus of liquid medicine. The thrust borne by the piston can be adjusted by adjusting the position of the push plate to compress or relax the drive spring, so that the flow can be adjusted. The liquid medicine is sucked like a syringe without the assistance of other equipment.
As an improvement, the rear end of the connecting rod extends out of the cylinder body and is provided with a pull handle. The piston is conveniently pulled when the liquid medicine is sucked.
As a further improvement, the difference in length between the connecting rod and the threaded sleeve is greater than the length of the drive spring.
As another further improvement, the front end of the cylinder body is provided with a sleeve, and the sleeve is in interference fit with the catheter. The sleeve tube is convenient for extracting the liquid medicine.
As a refinement, the conduit is a resilient capillary tube. Because the flow is the cross-sectional area flow speed, set up less cross-sectional area, conveniently adjust the flow through the mode of adjusting the velocity of flow.
As an improvement, a filter is arranged on the conduit.
As an improvement, the cylinder body is made of glass and marked with capacity scales. The residual liquid medicine amount in the cylinder body can be conveniently observed, and the medicine amount infused into the human body can be conveniently calculated.
The analgesia pump with the structure utilizes the rigid cylinder body to contain liquid medicine and utilizes the spring to replace the prior saccule as power to carry out continuous infusion. It has the advantages that:
1. the rigid cylinder body is convenient for observing the residual amount of the liquid medicine in the rigid cylinder body, and the existing saccule can not be accurately judged and can only be roughly estimated.
2. When the balloon is filled with liquid medicine, the liquid medicine can be filled only by means of special equipment due to the large pressure of the balloon. The utility model can utilize the negative pressure to suck the liquid medicine only by pulling the piston through the connecting rod, and the principle of the utility model is like that of an injector.
3. The pressure of the balloon cannot be adjusted, but only by a restrictor on the catheter. And the utility model discloses thrust is adjusted to accessible compression or extension spring, and it is higher to adjust the precision, and it is more convenient to adjust.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the rotating ring.
The labels in the figure are: 1 cylinder, 2 pistons, 3 connecting rods, 4 thread sleeves, 5 push plates, 6 driving springs, 7 guide tables, 8 rotating rings, 9 connecting rings, 10 sleeves, 11 catheters, 12 filters, 13 connectors and 14 quantitative control devices.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.
As shown in fig. 1 and 2, the present invention includes a pump body, a conduit 11 is connected to the pump body, and a filter 12 is disposed on the conduit 11. The catheter 1 is provided with a quantitative control device 14; the end of the conduit 11 is provided with a fitting 13.
The pump body comprises a cylinder body 1, wherein the cylinder body 1 is made of glass, and capacity scales are marked on the cylinder body 1. The front end of the cylinder body 1 is closed, and a piston 2 capable of sliding back and forth along the cylinder body 1 is arranged in the cylinder body 1; a push plate 5 is arranged in the cylinder 1 behind the piston 2, and a driving spring 6 is arranged between the push plate 5 and the piston 2; the push plate 5 is provided with a screw hole and also comprises a thread sleeve 4 which is in thread fit with the screw hole on the push plate 5; a rotating ring 8 for driving the threaded sleeve 4 to rotate is fixed at the rear end of the threaded sleeve 4, and the rotating ring 8 is clamped at the rear part of the connecting ring 9 and can rotate relative to the connecting ring 9; the front part of the connecting ring 9 is provided with internal threads which are matched with external threads arranged at the rear end of the barrel 1; a connecting rod 3 penetrates through the threaded sleeve 4, and the front end of the connecting rod 3 extends out of the threaded sleeve 4 to be fixedly connected with the piston 2; a guide table 7 is axially arranged in the cylinder body 1, and grooves matched with the guide table 7 are formed in the push plate 5 and the piston 2.
The rear end of the connecting rod 3 extends out of the cylinder body and is provided with a pull handle. The difference in length between the connecting rod 3 and the threaded sleeve 4 is greater than the length of the drive spring 6. The front end of the cylinder body 1 is provided with a sleeve 10, and the sleeve 10 is in interference fit with the catheter 11. The conduit 11 is an elastic capillary tube with a pore diameter of 0.9-1.1 mm.
The filter 12 is used to filter impurities in the liquid medicine. The quantitative control device 14 is used for self-filling liquid medicine when the patient feels pain, and the limit is limited. The dosing control device 14 and the filter 12 are prior art and are not the focus of the present application's improvements, and therefore their construction is not described in detail in this application.
The connecting rod 3 and the piston 2 can also be designed to be detachable in this application, for example, as a threaded connection. When the infusion is continuously performed, the connecting rod 3 can be detached, so that the patient is prevented from injecting liquid medicine privately.
When the liquid medicine is sucked, the connecting ring 9 is firstly separated from the cylinder body 1, so that the threaded sleeve 4 can slide back and forth along the connecting rod 3 after being loosened. The drive spring 6 is also in a loose state at this time. The connecting rod 3 is pulled, and the liquid medicine is sucked into the cylinder 1 by utilizing the negative pressure. The connecting ring 9 is screwed on the cylinder body 1 to fix the threaded sleeve 4, the threaded sleeve 4 is driven to rotate by rotating the ring 8, and the push plate 5 axially advances along the threaded sleeve 4 to compress the driving spring 6. The drive spring 6 continuously provides thrust to the piston 2 as a motive force for continuous infusion. When the flow needs to be adjusted, the threaded sleeve 4 is driven only by the rotating ring 8, and the threaded sleeve 4 drives the push plate 5 to move forward or backward, so that the driving spring 6 is compressed or loosened, and the thrust on the piston 2 is increased or reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (7)
1. An improved piston type post-anesthesia analgesic pump comprises a pump body, wherein a guide pipe is connected to the pump body, and a joint is arranged at the tail end of the guide pipe; the guide pipe is provided with a quantitative control device; the method is characterized in that: the pump body comprises a cylinder body, the front end of the cylinder body is closed, and a piston capable of sliding back and forth along the cylinder body is arranged in the cylinder body; a push plate is arranged in the cylinder body and behind the piston, and a driving spring is arranged between the push plate and the piston; the push plate is provided with a screw hole and also comprises a thread sleeve which is in thread fit with the screw hole on the push plate; a rotating ring for driving the screw sleeve to rotate is fixed at the rear end of the screw sleeve, and the rotating ring is clamped at the rear part of the connecting ring and can rotate relative to the connecting ring; the front part of the connecting ring is provided with internal threads which are matched with external threads arranged at the rear end of the cylinder body; a connecting rod penetrates through the threaded sleeve, and the front end of the connecting rod extends out of the threaded sleeve to be fixedly connected with the piston; the cylinder is internally and axially provided with a guide table, and the push plate and the piston are both provided with grooves matched with the guide table.
2. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: the rear end of the connecting rod extends out of the cylinder body and is provided with a pull handle.
3. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: the length difference between the connecting rod and the threaded sleeve is greater than the length of the driving spring.
4. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: the front end of the cylinder body is provided with a sleeve, and the sleeve is in interference fit with the catheter.
5. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: the conduit is a resilient capillary tube.
6. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: a filter is arranged on the conduit.
7. An improved piston-type post-anesthesia analgesia pump as claimed in claim 1, wherein: the cylinder body is made of glass, and capacity scales are marked on the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020115645.0U CN211611088U (en) | 2020-01-17 | 2020-01-17 | Improved piston type analgesia pump after anesthesia operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020115645.0U CN211611088U (en) | 2020-01-17 | 2020-01-17 | Improved piston type analgesia pump after anesthesia operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211611088U true CN211611088U (en) | 2020-10-02 |
Family
ID=72639054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020115645.0U Expired - Fee Related CN211611088U (en) | 2020-01-17 | 2020-01-17 | Improved piston type analgesia pump after anesthesia operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211611088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843382A (en) * | 2021-01-05 | 2021-05-28 | 凯联医疗科技(上海)有限公司 | Reciprocating type infusion advancing mechanism |
-
2020
- 2020-01-17 CN CN202020115645.0U patent/CN211611088U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843382A (en) * | 2021-01-05 | 2021-05-28 | 凯联医疗科技(上海)有限公司 | Reciprocating type infusion advancing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 |