CN2754569Y - Arachoid inferior caval puncture - Google Patents
Arachoid inferior caval puncture Download PDFInfo
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- CN2754569Y CN2754569Y CN 200420013888 CN200420013888U CN2754569Y CN 2754569 Y CN2754569 Y CN 2754569Y CN 200420013888 CN200420013888 CN 200420013888 CN 200420013888 U CN200420013888 U CN 200420013888U CN 2754569 Y CN2754569 Y CN 2754569Y
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- closing member
- nook closing
- hollow
- puncture needle
- lumbar puncture
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Abstract
The utility model discloses a subarachnoid cavity puncturing device. The utility model comprises a guiding puncture needle and a lumbar puncture needle, wherein a hollow needle core of the lumbar puncture needle and a hollow needle core of the guiding puncture needle form tight fit, and the hollow needle core of the lumbar puncture needle can freely slide along the axis direction of the hollow needle core of the guiding puncture needle. The length of the hollow needle core of the guiding puncture needle is 2 to 4 centimeters, an outside diameter is 0.7 to 0.9 millimeters, and an inside diameter is larger than and equal to 0.55 millimeters. The length of the hollow needle core of the lumbar puncture needle is 5 to 12 centimeters, an outside diameter is 0.45 to 0.6 millimeters, but the outer diameter of the hollow needle core of the lumbar puncture needle is smaller than the inside diameter of the hollow needle core of the guiding puncture needle. In this way, when a subarachnoid cavity is punctured, only the guiding puncture needle needs to be inserted to subcutaneous parts, the lumbar puncture needle can pass through muscles and ligament tissue under the cooperation of the guiding puncture needle and arrive at the subarachnoid cavity, operating difficulty is reduced, therefore the utility model is more suitable for popularizing and applying in operations.
Description
Technical field
This utility model relates to a kind of sting device, and more particularly, this utility model relates to a kind of subarachnoid space sting device.
Background technology
Traditional puncture needle is thicker, can cause wound during epidural puncture, and the patient is easy to produce headache.Afterwards, people were improving traditional puncture needle, had invented epidural-lumbar anesthesia combined anesthesia puncture needle.The occupation mode of this combined anesthesia puncture needle is: carry out epidural puncture with biopsy needle guide earlier, the reuse lumbar puncture needle carries out the subarachnoid space puncture.Epidural-lumbar anesthesia combined anesthesia puncture needle is thinner than traditional puncture needle, carry out subarachnoid space puncture with it after, dura mater only stays next little puncturing hole, thereby has reduced the incidence rate of headache widely.If but biopsy needle guide fails really to arrive epidural space, only is inserted to muscle or ligament tissue, because lumbar puncture needle is too thin, often the bend resistance ability is not enough, can't pass muscle and ligament tissue and arrive subarachnoid space.Do epidural-lumbar anesthesia combined anesthesia anaesthetist's operant level is required than higher, must arrive epidural space, only in this way, could guarantee to go that subarachnoid space punctures carries out smoothly with the biopsy needle guide puncture.Disclose a kind of epidural-lumbar anesthesia combined puncturing needle that is used among the Chinese patent CN92238260, then disclose a kind of attachment-type epidural-lumbar anesthesia combined puncturing needle among the Chinese patent CN01248803.Incidence rate with these two kinds of lancet puncture headaches is all lower, still, if carry out the subarachnoid space puncture with them, then all must allow biopsy needle guide successfully thrust epidural space, and the difficulty of this operation is bigger.
Therefore, use epidural-lumbar anesthesia combined puncturing needle to carry out the subarachnoid space puncture and must be prerequisite to complete successfully epidural puncture.Yet in clinical practice, some patient does not need to carry out epidural anesthesia, only need carry out lumbar anesthesia.Concerning this class patient, if can invent a kind of puncture needle that can directly pass muscle and ligament tissue arrival subarachnoid space, just needn't require again to guarantee that epidural puncture must be successful, thereby reduce the difficulty of operation greatly.But present eel-like figure is threaded a needle and can't directly be passed muscle and ligament tissue thrusts subarachnoid space.
So, be necessary to develop a kind of epidural puncture success that need not require to guarantee, can directly enter the puncture needle of subarachnoid space, reduce the difficulty of subarachnoid space puncture, make other doctor also can finish the operation that the fine needle waist is worn independently.
Summary of the invention
The purpose of this utility model provides a kind of subarachnoid space sting device, utilizes this device to carry out the subarachnoid space puncture, need not require to guarantee the epidural puncture success, has reduced the difficulty of eel-like figure puncture.
Subarachnoid space sting device of the present utility model comprises biopsy needle guide and lumbar puncture needle, and biopsy needle guide comprises hollow biopsy needle guide nook closing member and hold part that this is held part and links to each other with the near-end of hollow biopsy needle guide nook closing member; Lumbar puncture needle comprises hollow lumbar puncture needle nook closing member and holds part that this is held part and links to each other with the near-end of hollow lumbar puncture needle nook closing member; The needle point of hollow biopsy needle guide nook closing member is an inclined-plane opening shape; The needle point of hollow lumbar puncture needle nook closing member is the cavetto shape and seals, be provided with side opening on needle point; And hollow lumbar puncture needle nook closing member and hollow biopsy needle guide nook closing member form and closely cooperate, and can freely slide along the axis direction of hollow biopsy needle guide nook closing member; The length of hollow biopsy needle guide nook closing member is 2-4cm, and overall diameter is 0.7-0.9mm, interior diameter 〉=0.55mm; The length of hollow lumbar puncture needle nook closing member is 5-12cm, overall diameter is 0.45-0.6mm, but its overall diameter is less than the interior diameter of hollow biopsy needle guide nook closing member, so that make lumbar puncture needle under the cooperation of hollow biopsy needle guide, improve its bend resistance ability widely, thereby can penetrate muscle and ligament tissue arrival subarachnoid space.
Defined in this utility model " near-end " and " far-end " are when using this device with user, and user is that benchmark is determined with respect to the position of sting device.Our end that each member distance user of this device is nearer is defined as " near-end " of these parts, and its end away from user is defined as " far-end " of these parts.For example, for hollow biopsy needle guide nook closing member, the root of nook closing member is nook closing member " near-end " with holding the part that part joins, and needle point then is " far-end " of nook closing member.
In order to reduce the wound surface that puncture produces, make lumbar puncture needle can directly pass muscle and ligament tissue simultaneously, this utility model has carried out strictly limiting to the specification of hollow biopsy needle guide nook closing member.It is 0.7-0.9mm that this utility model adopts the overall diameter of hollow biopsy needle guide nook closing member, interior diameter 〉=0.55mm; The overall diameter of hollow lumbar puncture needle nook closing member is 0.45-0.6mm, but its overall diameter is less than the interior diameter of hollow biopsy needle guide nook closing member.Preferably, adopting the hollow overall diameter is that biopsy needle guide nook closing member and the overall diameter of 0.8mm, interior diameter 〉=0.55mm is the use that matches of the hollow lumbar puncture needle nook closing member of 0.5mm.
In addition, for guarantee that lumbar puncture needle wears out in the biopsy needle guide nook closing member, penetrate muscle and ligament tissue and arrive subarachnoid space, the length of hollow lumbar puncture needle nook closing member should be greater than the length of hollow biopsy needle guide nook closing member.Preferably, adopt the hollow biopsy needle guide nook closing member of 2-5cm to match, more preferably, adopt the hollow biopsy needle guide nook closing member of 3-4cm to match with the hollow lumbar puncture needle nook closing member of 8-11cm with the hollow lumbar puncture needle nook closing member of 5-13cm.
For the needle point that makes lumbar puncture needle accurately, promptly aims at the nook closing member of hollow biopsy needle guide, preferably sight is set in the part inside of holding of biopsy needle guide.Device of the present utility model can adopt existing funnel-form sight.The narrow opening of funnel-form sight one end is located at the far-end of holding part, be connected with the near-end of hollow biopsy needle guide nook closing member, and its openings of sizes matches with the internal diameter size of nook closing member, and the wide opening of the other end is located at the near-end of holding part.Use the benefit of sight to be that user can place needle point the wide opening part of sight like a cork, the lumbar puncture needle nook closing member along the inner diminishing passage of sight, is successfully penetrated in the hollow biopsy needle guide nook closing member that joins with sight.Sight on this utility model biopsy needle guide and hold part and both can be integral structure; Also can be detachable structure, in use with sight with hold part combination.
Because hollow lumbar puncture needle nook closing member is provided with side opening, stop up hollow lumbar puncture needle nook closing member for preventing substance in vivo, this utility model preferably adopts stylet that the side opening of hollow lumbar puncture needle nook closing member is blocked.Stylet of the present utility model comprises the stylet nook closing member and holds part, holds part and link to each other with the near-end of stylet nook closing member; The nook closing member of stylet and hollow lumbar puncture needle nook closing member form and closely cooperate, and can freely slide along the axis direction of hollow lumbar puncture needle nook closing member, and its length should guarantee to be enough to block the side opening of hollow lumbar puncture needle nook closing member.For the needle point that makes stylet aims at the nook closing member of hollow waist puncture needle quickly and accurately, preferably sight is set in the part inside of holding of hollow waist puncture needle.The structure of this sight is identical with the sight of holding part inside of above-mentioned biopsy needle guide, and it and hold part and both can also can be detachable structure for integral structure.
All be provided with on biopsy needle guide of the present utility model and the lumbar puncture needle and hold part, preferably, the surface design of holding part is become the shape of the depression of both sides, form and hold portion, make and hold part and use more convenient.
In addition, device of the present utility model can also comprise injection parts such as syringe, piston.After subarachnoid space punctures successfully, syringe, piston and the hollow lumbar puncture needle nook closing member that inserted subarachnoid space are combined into syringe, to medicines such as subarachnoid injection anesthetis, perhaps extract cerebrospinal fluid with the syringe that is combined into.Preferably, on syringe, engrave scale, with convenient metering dose.
Utilize subarachnoid space sting device of the present utility model to puncture, need not biopsy needle guide is inserted epidural space, only need to be inserted to biopsy needle guide subcutaneous, lumbar puncture needle can be under the cooperation of biopsy needle guide, pass muscle and ligament tissue, arrive subarachnoid space.This device has been simplified the operation of subarachnoid space puncture, has reduced the difficulty of operation, preferablyly applies in operation.
Below in conjunction with accompanying drawing, describe this utility model in detail by the specific embodiment, but this utility model is not limited to these concrete embodiments, any improvement or change on this utility model basis all belongs to protection domain of the present utility model.
Description of drawings
Fig. 1 is existing subarachnoid space sting device sketch map.
Fig. 2 is a biopsy needle guide sketch map of the present utility model.
Fig. 3 is a lumbar puncture needle sketch map of the present utility model.
Fig. 4 is a stylet sketch map of the present utility model.
Fig. 5 is the sketch map of detachable sight assembly.
Fig. 6 is the combination sketch map of lumbar puncture needle of the present utility model and stylet.
Fig. 7 is the combination sketch map of biopsy needle guide of the present utility model and lumbar puncture needle.
Fig. 8 is the combination sketch map of subarachnoid space sting device of the present utility model.
The specific embodiment
Fig. 2 has shown a kind of embodiment of hollow biopsy needle guide of the present utility model.Biopsy needle guide 10 by hollow biopsy needle guide nook closing member 11, hold part 13 and sight 14 is formed.Wherein, hold part 13 and link to each other with the near-end of hollow biopsy needle guide nook closing member 11, its surface is provided with the recessed portion of holding 18.The needle point 12 of hollow biopsy needle guide nook closing member 11 is that the inclined-plane is ringent.What sight 14 was located at biopsy needle guide 10 holds part 13 inside, be funnel-shaped structure, the narrow opening 15 of one end is located at the far-end of holding part 13, be connected with hollow biopsy needle guide nook closing member 11, and its openings of sizes matches with the internal diameter size of nook closing member 11, and the wide opening 16 of the other end is located at the near-end of holding part 13.The length of hollow biopsy needle guide nook closing member 11 is 4cm, and its overall diameter is 0.8mm, and interior diameter is 0.55mm.
Fig. 3 has shown a kind of embodiment of hollow lumbar puncture needle of the present utility model.Lumbar puncture needle 20 comprises hollow lumbar puncture needle nook closing member 21, holds part 23 and sight 24 compositions.Wherein, hold part 23 and link to each other with the near-end of hollow lumbar puncture needle nook closing member 21, its surface is provided with the recessed portion of holding 28.The needle point 22 of hollow lumbar puncture needle nook closing member 21 is the cavetto shape and seals, and be provided with side opening 27 on needle point 22.What sight 24 was located at biopsy needle guide 20 holds part 23 inside, be funnel-shaped structure, the narrow opening 25 of one end is located at the far-end of holding part 23, be connected with hollow lumbar puncture needle nook closing member 21, and its openings of sizes matches with the internal diameter size of nook closing member 21, and the wide opening 26 of the other end is located at the near-end of holding part 23.The length of hollow lumbar puncture needle nook closing member 21 is 10cm, and its overall diameter is 0.50mm.
Fig. 4 has shown a kind of embodiment of stylet of the present utility model.Stylet 30 comprises stylet nook closing member 31 and holds part 33, holds part 33 and link to each other with the near-end of stylet nook closing member 31.The nook closing member 31 of stylet forms with hollow lumbar puncture needle nook closing member 21 and closely cooperates, and can freely slide along the axis direction of hollow lumbar puncture needle nook closing member 21, and its length is blocked the side opening 27 of hollow lumbar puncture needle nook closing member 21 just.
Fig. 5 is a kind of separate type sight assembly 34, and it is a funnel-shaped structure, and an end is a narrow opening 35, and the other end is wide opening 36.During use, 34 insertions of sight assembly are held in part 13 or 23.Narrow opening 35 is connected with hollow biopsy needle guide nook closing member 11 or hollow lumbar puncture needle nook closing member 21, and its size matches with the internal diameter size of nook closing member 11 or 21, and is loaded into and holds far- ends part 13 or 23; 36 of wide openings are loaded into holds near- ends part 13 or 23.
Fig. 6-8 has shown the syntagmatic of each parts of this utility model sting device.Can see from Fig. 6, Fig. 7, between lumbar puncture needle and the stylet, and all be close-fitting mutually between biopsy needle guide and the lumbar puncture needle.As seen from Figure 8, sting device of the present utility model is compared with the existing subarachnoid space sting device of Fig. 1, closely cooperate more between biopsy needle guide and the lumbar puncture needle, thereby guided puncture played the support effect at lumbar puncture needle, makes the bend resistance ability of hollow lumbar puncture needle nook closing member obviously be better than existing subarachnoid space sting device.
When using subarachnoid space sting device of the present invention, earlier biopsy needle guide 10 is passed skin, arrive subcutaneous tissue.Then, with the needle point 22 of lumbar puncture needle 20 in the wide opening 16 of sight 14 is sent into the hollow biopsy needle guide nook closing member 11 that is connected with the narrow opening 15 of sight 14.At last, lumbar puncture needle 20 passes muscle and ligament tissue under the cooperation of inserting hypodermic biopsy needle guide 10, arrives subarachnoid space.
After completing successfully the subarachnoid space puncture, can be in the wide opening 26 of sight 24 be sent into the hollow lumbar puncture needle nook closing member 21 that is connected with the narrow opening 25 of sight 24 with the nook closing member 31 of stylet 30, block side opening 27 on lumbar puncture needle 20 needle points 22, avoid the subarachnoid space content to enter hollow lumbar puncture needle nook closing member 21, stop up hollow lumbar puncture needle nook closing member 21 from needle point 22.Also can be immediately syringe, piston and the hollow lumbar puncture needle nook closing member 21 that inserted subarachnoid space be combined into syringe, to subarachnoid injection anesthetis.Can also extract cerebrospinal fluid with this syringe.
Claims (10)
1. subarachnoid space sting device, this device comprises biopsy needle guide (10) and lumbar puncture needle (20), described biopsy needle guide (10) comprises hollow biopsy needle guide nook closing member (11) and holds part (13), holds part (13) and links to each other with the near-end of hollow biopsy needle guide nook closing member (11); Lumbar puncture needle (20) comprises hollow lumbar puncture needle nook closing member (21) and holds part (23), holds part (23) and links to each other with the near-end of hollow lumbar puncture needle nook closing member (21); The needle point (12) of hollow biopsy needle guide nook closing member (11) is that the inclined-plane is ringent; The needle point (22) of hollow lumbar puncture needle nook closing member (21) is the cavetto shape and seals, on needle point (22), be provided with side opening (27), it is characterized in that, described hollow lumbar puncture needle nook closing member (21) forms with hollow biopsy needle guide nook closing member (11) and closely cooperates, and hollow lumbar puncture needle nook closing member (21) can freely slide along the axis direction of hollow biopsy needle guide nook closing member (11); The length of hollow biopsy needle guide nook closing member (11) is 2-4cm, and overall diameter is 0.7-0.9mm, interior diameter 〉=0.55mm; The length of hollow lumbar puncture needle nook closing member (21) is 5-12cm, and overall diameter is 0.45-0.6mm, but its overall diameter is less than the interior diameter of hollow biopsy needle guide nook closing member (11).
2. sting device as claimed in claim 1 is characterized in that, the overall diameter of described hollow biopsy needle guide nook closing member (11) is 0.8mm; The overall diameter of hollow lumbar puncture needle nook closing member (21) is 0.5mm.
3. sting device as claimed in claim 1 or 2 is characterized in that, the length of described biopsy needle guide nook closing member (11) is 3-4cm, and the length of described hollow lumbar puncture needle nook closing member (21) is 8-11cm.
4. sting device as claimed in claim 1 is characterized in that, this device also comprises stylet (30), and described stylet (30) comprises stylet nook closing member (31) and holds part (33), holds part (33) and links to each other with the near-end of stylet nook closing member (31); Described stylet nook closing member (31) closely cooperates with hollow lumbar puncture needle nook closing member (21) formation, and can freely slide along the axis direction of hollow lumbar puncture needle nook closing member (21), and its length is enough to block the side opening (27) of hollow lumbar puncture needle nook closing member (21).
5. sting device as claimed in claim 1, it is characterized in that, part (13) inside of holding of described biopsy needle guide (10) is provided with sight (14), this sight (14) is a funnel-shaped structure, the narrow opening (15) of sight (14) one ends is located at the far-end of holding part (13), be connected with the near-end of hollow biopsy needle guide nook closing member (11), and the size of narrow opening (15) matches with the internal diameter size of nook closing member (11), the wide opening (16) of the other end is located at the near-end of holding part (13).
6. sting device as claimed in claim 1, it is characterized in that, part (23) inside of holding of described lumbar puncture needle (20) is provided with sight (24), this sight (24) is a funnel-shaped structure, the narrow opening (25) of sight (24) one ends is located at the far-end of holding part (23), be connected with the near-end of hollow biopsy needle guide nook closing member (21), and narrow opening (25) size matches with the internal diameter size of nook closing member (21), the wide opening (26) of the other end is located at the near-end of holding part (23).
7. sting device as claimed in claim 5 is characterized in that, described sight (14) and the described part (13) of holding are integral structure or detachable structure.
8. sting device as claimed in claim 6 is characterized in that, described sight (24) and the described part (23) of holding are integral structure or detachable structure.
9. sting device as claimed in claim 1 is characterized in that, the described surface of holding part (13), (23) is provided with the recessed portion of holding (18), (28).
10. sting device as claimed in claim 1 is characterized in that this device also comprises syringe and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420013888 CN2754569Y (en) | 2004-08-09 | 2004-10-10 | Arachoid inferior caval puncture |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420072436.3 | 2004-08-09 | ||
| CN200420072436 | 2004-08-09 | ||
| CN 200420013888 CN2754569Y (en) | 2004-08-09 | 2004-10-10 | Arachoid inferior caval puncture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754569Y true CN2754569Y (en) | 2006-02-01 |
Family
ID=35928203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420013888 Expired - Fee Related CN2754569Y (en) | 2004-08-09 | 2004-10-10 | Arachoid inferior caval puncture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2754569Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750887A (en) * | 2014-02-19 | 2014-04-30 | 张敬首 | Combined spinal-epidural anesthesia double-cavity integrated puncture needle |
| CN107174690A (en) * | 2017-06-15 | 2017-09-19 | 无锡圣诺亚科技有限公司 | Exempt to sterilize block-by-block avulsion calparine cap |
-
2004
- 2004-10-10 CN CN 200420013888 patent/CN2754569Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750887A (en) * | 2014-02-19 | 2014-04-30 | 张敬首 | Combined spinal-epidural anesthesia double-cavity integrated puncture needle |
| CN107174690A (en) * | 2017-06-15 | 2017-09-19 | 无锡圣诺亚科技有限公司 | Exempt to sterilize block-by-block avulsion calparine cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |