CN211561392U - Medicine feeding device for medical oncology - Google Patents
Medicine feeding device for medical oncology Download PDFInfo
- Publication number
- CN211561392U CN211561392U CN201922327568.5U CN201922327568U CN211561392U CN 211561392 U CN211561392 U CN 211561392U CN 201922327568 U CN201922327568 U CN 201922327568U CN 211561392 U CN211561392 U CN 211561392U
- Authority
- CN
- China
- Prior art keywords
- stylet
- needle
- medical oncology
- guide tube
- tail end
- 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
- 239000003814 drug Substances 0.000 title abstract description 17
- 229940079593 drug Drugs 0.000 title description 3
- 238000002347 injection Methods 0.000 claims abstract description 58
- 239000007924 injection Substances 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000007769 metal material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 abstract description 6
- 238000012377 drug delivery Methods 0.000 abstract description 5
- 230000037452 priming Effects 0.000 description 6
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000002651 drug therapy Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a drug delivery device for medical oncology, which comprises an injection needle cylinder, a push rod arranged in the injection needle cylinder and an injection needle head arranged at the front end of the injection needle cylinder, wherein the injection needle head comprises a needle core made of metal material, a flexible conduit sleeved outside the needle core and a puncture needle head fixedly connected at the front end of the flexible conduit, and a liquid injection channel is arranged in the puncture needle head; the outer side wall of the front end of the injection needle cylinder is provided with a stylet guide tube, the stylet guide tube is communicated with the interior of the front end of the injection needle cylinder, the tail end of the stylet penetrates through the stylet guide tube, the tail end of the stylet is provided with a handle convenient to hold, and the stylet is in sliding fit with the catheter in a drawing mode. The utility model discloses a medical oncology is with device of dosing has solved and has caused the liquid medicine to take place the problem of weeping phenomenon because of injection cylinder rocks.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, especially, relate to a medical oncology is with device of dosing.
Background
Interventional therapy is minimally invasive therapy, which is to introduce special catheters, guide wires and other precise instruments into a human body under the guidance of medical imaging equipment to diagnose and locally treat internal diseases. Under the guidance of X-ray, CT, B-ultrasonic and other imaging technologies, a specially-made catheter or puncture needle is inserted into a pathological change area of a human body, histopathological examination and drug infusion are carried out through the catheter or the puncture needle, and the tumor internal medicine generally adopts a drug therapy mode to inhibit tumor cells.
Adopt present medical oncology medicine to intervene treatment device when inputing the drug therapy to the tumour, pjncture needle or syringe rock easily, and the rigidity is firm inadequately, leads to the needle point to rock, makes the liquid medicine take place the weeping phenomenon, causes local medicine to flow in normal tissue and leads to organizing the necrosis, brings the injury for patient. Especially, when the injection site is deep, the liquid leakage of the liquid medicine is more serious.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a device of dosing for oncology department, this device of dosing for oncology department can solve and lead to the needle point to rock because of injection syringe to rock and cause the liquid medicine to take place the problem of weeping phenomenon.
The utility model discloses an above-mentioned technical problem is solved to following technical means:
the utility model discloses a medicine feeding device for medical oncology, including injection cylinder, the push rod of setting in injection cylinder and the syringe needle of setting in injection cylinder front end, syringe needle, the flexible pipe of cover outside the syringe needle, the puncture needle of fixed connection at flexible pipe front end are made by metal material to the syringe needle, establish the priming channel in the puncture needle, the internal diameter of priming channel tail end is greater than the internal diameter of priming channel front end, the external diameter of syringe needle front end is less than the internal diameter of priming channel tail end, is greater than the internal diameter of priming channel front end, the front end tip of syringe needle can insert the tail end of priming channel; the outer side wall of the front end of the injection needle cylinder is provided with a stylet guide tube, the stylet guide tube is communicated with the interior of the front end of the injection needle cylinder, the tail end of the stylet penetrates through the stylet guide tube, the tail end of the stylet is provided with a handle convenient to hold, and the stylet is in sliding fit with the catheter in a drawing mode.
Further, an elastic sealing piece is arranged in the stylet guide tube, and the tail end of the stylet penetrates through the elastic sealing piece.
Further, be provided with the bayonet socket on the handle, be provided with the pothook on the syringe lateral wall, work as the front end of nook closing member inserts when annotating the liquid passageway tail end, the pothook can block in the position of fixed handle in the bayonet socket.
Further, the length of the puncture needle head is 1-1.5 cm.
Further, the outer diameter of the puncture needle is the same as that of the catheter.
Further, the axial direction of the front end of the needle core guide tube is the same as the axial direction of the injection needle cylinder.
Further, length scales are marked on the outer side wall of the guide pipe.
The utility model has the advantages that:
the utility model discloses a drug delivery device for medical oncology, which comprises an injection needle cylinder, a push rod arranged in the injection needle cylinder and an injection needle head arranged at the front end of the injection needle cylinder, wherein the injection needle head comprises a needle core made of metal materials, a flexible conduit sleeved outside the needle core and a puncture needle head fixedly connected at the front end of the flexible conduit, and a liquid injection channel is arranged in the puncture needle head; the outer side wall of the front end of the injection needle cylinder is provided with a stylet guide tube, the stylet guide tube is communicated with the interior of the front end of the injection needle cylinder, the tail end of the stylet penetrates through the stylet guide tube, the tail end of the stylet is provided with a handle convenient to hold, and the stylet is in sliding fit with the catheter in a drawing mode. The utility model discloses a medical oncology is with device of dosing has solved and has caused the liquid medicine to take place the problem of weeping phenomenon because of injection cylinder rocks.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the medical oncology drug delivery device of the present invention;
FIG. 2 is a schematic view of the internal structure of the medical drug delivery device for oncology, in which the front end of the stylet is inserted into the tail end of the puncture needle;
fig. 3 is the internal structure schematic diagram of the drug delivery device for medical oncology, wherein the front end of the stylet withdraws from the catheter.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings:
as shown in fig. 1-3, the administration device for medical oncology in this embodiment includes an injection needle cylinder 1, a push rod 9 disposed in the injection needle cylinder 1, and an injection needle disposed at the front end of the injection needle cylinder 1, wherein the injection needle is composed of a needle core 2 made of a metal material, a flexible catheter 3 sleeved outside the needle core, and a puncture needle 4 fixedly connected to the front end of the flexible catheter, an injection channel 5 is disposed in the puncture needle, the inner diameter of the tail end of the injection channel is larger than the inner diameter of the front end of the injection channel, the outer diameter of the front end of the needle core is smaller than the inner diameter of the tail end of the injection channel and larger than the inner diameter of the front end of the injection channel, and the front end of the needle core 2 can be inserted into the tail; be provided with nook closing member stand 6 on the lateral wall of injection cylinder 1 front end, nook closing member stand 6 communicates through the through-hole with injection cylinder 1 front end is inside each other, the tail end of nook closing member passes nook closing member stand 6, the tail end of nook closing member is provided with convenient handheld handle 7, but pull sliding fit between nook closing member and the pipe. Specifically, the length of the puncture needle head 4 is 1cm, and the puncture needle head is arranged under the length, so that the incision can be prevented from being hurt by pulling when the puncture needle head is drawn out; a bayonet 71 is arranged on the handle 7, a hook 72 is arranged on the outer side wall of the injection needle cylinder 1, when the front end of the needle core is inserted into the tail end of the liquid injection channel, the hook 72 can be clamped into the bayonet 71 to fix the position of the handle 7, and the handle can be fixed on the outer side wall of the injection needle cylinder 1 by matching the hook of the hook and the bayonet, so that the needle core is prevented from moving backwards during puncture; the outer diameter of the puncture needle 4 is the same as the outer diameter of the catheter 3.
The utility model discloses a medical oncology is with application method of device of dosing: before puncture, the front end of the needle core is inserted into the tail end of the puncture needle head 4, and the handle is fixed on the outer side wall of the injection needle cylinder 1; after the assigned position was punctured, pull out the pipe backward with the nook closing member, make nook closing member stand pipe 6 and the inside intercommunication each other of 1 front ends of syringe, promote the push rod and with the interior liquid medicine propelling movement of syringe to sick affected part, this moment because the support that lacks the nook closing member in the pipe becomes soft, consequently when slowly injecting the medicine, the position of puncture syringe needle will not be influenced in the swing of syringe to avoid rocking because of syringe and cause the problem that the liquid medicine takes place the weeping phenomenon.
As a further improvement of the technical scheme, the elastic sealing element 8 is arranged in the stylet guide tube, the stylet and the stylet guide tube can be sealed by arranging the elastic sealing element 8, and the liquid medicine is prevented from overflowing from the stylet guide tube when medicine is pushed.
As a further improvement of the technical proposal, the axial direction of the front end of the stylet guide tube 6 is the same as the axial direction of the injection syringe 1. Thereby facilitating the control of the puncture direction of the injection needle through the injection syringe.
As a further improvement of the technical scheme, the outer side wall of the catheter is marked with length scales 8, the numerical value of each scale on the length scales 8 represents the length from the current scale position to the tip of the puncture needle head, and the purpose of the arrangement is to facilitate the medical staff to control the puncture depth of the injection needle head.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. The utility model provides a device of dosing for medical oncology, includes syringe, the push rod of setting in syringe and the syringe needle of setting in syringe front end, its characterized in that: the injection needle head is composed of a needle core made of metal materials, a flexible conduit sleeved outside the needle core and a puncture needle head fixedly connected to the front end of the flexible conduit, a liquid injection channel is arranged in the puncture needle head, the inner diameter of the tail end of the liquid injection channel is larger than that of the front end of the liquid injection channel, the outer diameter of the front end of the needle core is smaller than that of the tail end of the liquid injection channel and larger than that of the front end of the liquid injection channel, and the front end part of the needle core can be inserted into the tail end of the liquid injection channel; the outer side wall of the front end of the injection needle cylinder is provided with a stylet guide tube, the stylet guide tube is communicated with the interior of the front end of the injection needle cylinder, the tail end of the stylet penetrates through the stylet guide tube, the tail end of the stylet is provided with a handle convenient to hold, and the stylet is in sliding fit with the catheter in a drawing mode.
2. The administration device for the medical oncology according to claim 1, wherein: an elastic sealing piece is arranged in the stylet guide tube, and the tail end of the stylet penetrates through the elastic sealing piece.
3. The administration device for the medical oncology according to claim 2, wherein: the handle is provided with a bayonet, the outer side wall of the injection needle cylinder is provided with a clamping hook, and when the front end of the needle core is inserted into the tail end of the liquid injection channel, the clamping hook can be clamped into the position of the fixed handle in the bayonet.
4. The administration device for the medical oncology according to claim 3, wherein: the length of the puncture needle head is 1-1.5 cm.
5. The administration device for the medical oncology according to claim 4, wherein: the outer diameter of the puncture needle head is the same as that of the catheter.
6. The administration device for the medical oncology according to claim 5, wherein: the axial direction of the front end of the stylet guide tube is the same as the axial direction of the injection syringe.
7. The administration device for the medical oncology according to claim 6, wherein: the outer side wall of the guide pipe is marked with length scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327568.5U CN211561392U (en) | 2019-12-20 | 2019-12-20 | Medicine feeding device for medical oncology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327568.5U CN211561392U (en) | 2019-12-20 | 2019-12-20 | Medicine feeding device for medical oncology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211561392U true CN211561392U (en) | 2020-09-25 |
Family
ID=72550085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922327568.5U Expired - Fee Related CN211561392U (en) | 2019-12-20 | 2019-12-20 | Medicine feeding device for medical oncology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211561392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112807522A (en) * | 2021-03-10 | 2021-05-18 | 山东孟友玻璃科技有限公司 | Flexible needle tube, preparation method thereof and flexible instillation needle |
-
2019
- 2019-12-20 CN CN201922327568.5U patent/CN211561392U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112807522A (en) * | 2021-03-10 | 2021-05-18 | 山东孟友玻璃科技有限公司 | Flexible needle tube, preparation method thereof and flexible instillation needle |
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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 |
Granted publication date: 20200925 |