CN206350747U - Insertion puncture needle - Google Patents
Insertion puncture needle Download PDFInfo
- Publication number
- CN206350747U CN206350747U CN201620823993.7U CN201620823993U CN206350747U CN 206350747 U CN206350747 U CN 206350747U CN 201620823993 U CN201620823993 U CN 201620823993U CN 206350747 U CN206350747 U CN 206350747U
- Authority
- CN
- China
- Prior art keywords
- trocar
- closing member
- nook closing
- head
- retainer ring
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model is related to insertion puncture needle, including：Trocar is provided with trocar needle body, trocar head, trocar retainer ring and trocar positioning hole, and trocar needle body is hollow tube, and one end is trocar head, and the other end is fixed in trocar retainer ring, and one end relative with trocar needle body is provided with trocar positioning hole in trocar retainer ring；Nook closing member is provided with nook closing member head, nook closing member body, nook closing member retainer ring and retainer plate, nook closing member body is solid cylinder, one end is nook closing member head, the other end is fixed in nook closing member retainer ring, one end of nook closing member retainer ring and nook closing member body phase pair is provided with retainer plate, it is fixed on the outside of retainer plate in nook closing member retainer ring, inner side fixed pin core body；Nook closing member is enclosed on the inside of trocar, and nook closing member head is cone, and the hollow cone table of trocar head, the external end head of trocar head is contacted with the bottom of the cone of nook closing member head, and is seamlessly transitted.Sharp keen degree is weak compared with the insertion puncture needle of scarf during puncture, can perceive resistance during puncture, while not influenceing smoothly puncture.
Description
Technical field
The utility model is related to medical instruments field, particularly a kind of intervention that can smoothly puncture, can perceive penetration Resistance
Puncture needle.
Background technology
Seeds implanted full name is " seeds implantation technology ", is a kind of by inside radioactive source implantation tumour, allows
It is with the treatment means of destroyed tumor.Seeds implanted treatment technology is related to radioactive source, and its core is radion.It is now clinical to transport
It is a kind of material for being referred to as I125.Each I125 particle is just as a Sunny, and the ray of its immediate vicinity is most strong,
The damage of normal tissue can be reduced to greatest extent.Seeds implantation technology relies primarily on stereotactic system and will put
The accurate intratumor injection of penetrating property particle, sends lasting, short-range radioactive ray by mini-radioactive resource, makes tumor tissues by most
Limits are killed, and normal structure is not damaged or only microlesion.Compared to other oncotherapy technologies, radioactive prospecting instrument
Treatment technology technology content itself is not high, difficulty and little.Seeds implantation early prostate cancer is in U.S. etc.
Country turns into standard care means, and its treatment concept also gets the nod gradually at home.
" seeds implantation technology " needs to use insertion puncture needle, the nook closing member head of existing insertion puncture needle and
It is sharp oblique angle after trocar head fit, in puncture process, easily punctures the blood vessel of patient, the damage of damaging property.Due to
The part of puncture is excessively sharp keen, and operating personnel are in use, it is difficult to which whether assurance is punctured to blood vessel.For example swollen to lung
When knurl carries out seeds implantation, pulmonary vascular is intensive, and vein, artery, capillary are more, and damage can be especially prominent.
Prior art, which lacks, smoothly to be punctured, at the same in puncture process, will not be too sharp keen, allow the operator to by hand
The resistance that portion is received perceives the insertion puncture needle for whether running into blood vessel.
Utility model content
The purpose of this utility model is to provide a kind of insertion puncture needle that can smoothly puncture, can perceive penetration Resistance.
Insertion puncture needle, including：
Trocar, the trocar is provided with trocar needle body, trocar head, trocar retainer ring and trocar positioning hole, the trocar needle body
For hollow tube, one end is trocar head, and the other end is fixed in trocar retainer ring, relative with trocar needle body in the trocar retainer ring
One end be provided with trocar positioning hole；
Nook closing member, the nook closing member is provided with nook closing member head, nook closing member body, nook closing member retainer ring and retainer plate, and the nook closing member body is filled circles
Post, one end is nook closing member head, and the other end is fixed in nook closing member retainer ring, and one end of the nook closing member retainer ring and nook closing member body phase pair is provided with
It is fixed on the outside of retainer plate, the retainer plate in nook closing member retainer ring, inner side fixed pin core body；
The nook closing member is enclosed on the inside of trocar, and the nook closing member head is cone, the hollow cone table of the trocar head, the set
The external end head of syringe needle is contacted with the bottom of the cone of nook closing member head, and is seamlessly transitted.
Trocar head angle of plane where trocar needle body axle center is 15 °~60 °.
The central angle of the nook closing member head is 30 °~80 °.
It is provided with the inside of the trocar positioning hole and on the outside of nook closing member retainer ring for fixed matching thread.
The outside of the nook closing member retainer ring is provided with the outside of overhanging clamp, the trocar retainer ring provided with projection, described convex
Play the hole clipping provided with fixation clamp.
The outside of the trocar needle body is provided with equidistant scale groove.
The insertion puncture needle is provided with locating ring, and the locating ring is hollow, is enclosed on trocar needle body.
The nook closing member head of the nook closing member is stretched into from the trocar positioning hole of trocar, is coordinated in the end of trocar needle body and trocar head.
Described seamlessly transit has smooth fillet surface for intersection between face and face.
The utility model nook closing member is enclosed on the inside of trocar, and nook closing member head is cone, the hollow cone table of trocar head, trocar head
External end head is contacted with the bottom of the cone of nook closing member head, and is seamlessly transitted, and intervention of the sharp keen degree compared with scarf is worn during puncture
Pricker is weak, can perceive resistance during puncture, while not influenceing smoothly puncture.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of trocar；
Fig. 3 is the structural representation of nook closing member；
Fig. 4 is the raised structural representation with clamp；
Fig. 5 is the structural representation of insertion puncture needle in the prior art；
Fig. 6 is the structural representation of trocar in the prior art；
Fig. 7 is the structural representation of nook closing member in the prior art；
Fig. 8 is locating ring in the prior art；
In figure：1st, trocar, 2, nook closing member, 3, locating ring, 11, trocar needle body, 12, trocar head, 13, trocar retainer ring, 14, set
Pin positioning hole, 15, raised, 21, nook closing member head, 22, nook closing member body, 23, nook closing member retainer ring, 24, retainer plate, 25, clamp.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1：
Insertion puncture needle, including：Trocar 1, trocar 1 is provided with trocar needle body 11, trocar head 12, trocar retainer ring 13 and trocar
Positioning hole 14, trocar needle body 11 is hollow tube, and one end is trocar head 12, and the other end is fixed in trocar retainer ring 13, and trocar is solid
One end relative with trocar needle body 11 on ring 13 is determined provided with trocar positioning hole 14；Nook closing member 2, nook closing member 2 is provided with nook closing member first 21, nook closing member body
22nd, nook closing member retainer ring 23 and retainer plate 24, nook closing member body 22 are solid cylinder, and one end is nook closing member first 21, and the other end is fixed on nook closing member
In retainer ring 23, the one end relative with nook closing member body 22 of nook closing member retainer ring 23 is provided with retainer plate 24, and the outside of retainer plate 24 is fixed on pin
In core retainer ring 23, inner side fixed pin core body 22；Nook closing member 2 is enclosed on the inner side of trocar 1, during nook closing member first 21 is cone, trocar head 12
Empty cone table, the external end head of trocar head 12 is contacted with the bottom of the cone of nook closing member first 21, and is seamlessly transitted, and is seamlessly transitted
There is smooth fillet surface for intersection between face and face.
The angle of plane where the axle center of trocar needle body 11 of trocar head 12 is 15 °~60 °.The central angle of nook closing member first 21 is
30 °~80 °.The inner side of trocar positioning hole 14 and the outside of nook closing member retainer ring 23 are provided with for fixed matching thread.Nook closing member retainer ring
23 outside is provided with fixation clamp 25 provided with overhanging clamp 25, the outside of trocar retainer ring 13 provided with projection 15, projection 15
Hole clipping.The outside of trocar needle body 11 is provided with equidistant scale groove.Insertion puncture needle is provided with locating ring 3, and locating ring 3 is hollow,
It is enclosed on trocar needle body 11.The nook closing member first 21 of nook closing member 2 is stretched into from the trocar positioning hole 14 of trocar 1, in the end of trocar needle body 11
Coordinate with trocar head 12.
During using insertion puncture needle, nook closing member 2 is enclosed on inside trocar 1, coordinated using projection 15 and clamp 25, or trocar
The inner side of positioning hole 14 and the outside of nook closing member retainer ring 23 are used for fixed matching thread, coordinate trocar head 12 and nook closing member first 21.Behaviour
Nook closing member retainer ring 23 is held as personnel and trocar retainer ring 13 is pushed, and trocar head 12 and nook closing member first 21 is delivered to patient affected part, is taken out
Go out nook closing member 2, operation is inserted in progress.To make to put locating ring 3 outside accurate positioning, trocar 1, locating ring 3 is located at the scale set in advance
At groove, reference is provided for the positioning of operating personnel, is accurately positioned.When insertion puncture needle is punctured to human vas, resistance increase,
Operating personnel can perceive, so as to stop puncturing, change puncture position.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. insertion puncture needle, it is characterised in that including：
Trocar (1), the trocar (1) is provided with trocar needle body (11), trocar head (12), trocar retainer ring (13) and trocar positioning hole
(14), the trocar needle body (11) is hollow tube, and one end is trocar head (12), and the other end is fixed in trocar retainer ring (13),
One end relative with trocar needle body (11) is provided with trocar positioning hole (14) on the trocar retainer ring (13)；
Nook closing member (2), the nook closing member (2) is provided with nook closing member head (21), nook closing member body (22), nook closing member retainer ring (23) and retainer plate (24),
The nook closing member body (22) is solid cylinder, and one end is nook closing member head (21), and the other end is fixed in nook closing member retainer ring (23), the pin
Core retainer ring (23) one end relative with nook closing member body (22) is provided with the outside of retainer plate (24), the retainer plate (24) and is fixed on nook closing member
In retainer ring (23), inner side fixed pin core body (22)；
The nook closing member (2) is enclosed on the inside of trocar (1), and the nook closing member head (21) is cone, the hollow cone of the trocar head (12)
Stage body, the external end head of the trocar head (12) is contacted with the bottom of the cone of nook closing member head (21), and is seamlessly transitted.
2. insertion puncture needle according to claim 1, it is characterised in that the trocar head (12) is in trocar needle body (11) axle
The angle of plane is 15 °~60 ° where the heart.
3. insertion puncture needle according to claim 1, it is characterised in that the central angle of the nook closing member head (21) is 30 °~
80°。
4. insertion puncture needle according to claim 1, it is characterised in that consolidate on the inside of the trocar positioning hole (14) with nook closing member
Determine to be provided with for fixed matching thread on the outside of ring (23).
5. insertion puncture needle according to claim 1, it is characterised in that the outside of the nook closing member retainer ring (23) is provided with outer
Provided with raised (15) on the outside of the clamp (25) stretched, the trocar retainer ring (13), the projection (15) is provided with fixation clamp
(25) hole clipping.
6. insertion puncture needle according to claim 1, it is characterised in that the outside of the trocar needle body (11) is provided between grade
Away from scale groove.
7. insertion puncture needle according to claim 1, it is characterised in that the insertion puncture needle is provided with locating ring (3),
The locating ring (3) is hollow, is enclosed on trocar needle body (11).
8. insertion puncture needle according to claim 1, it is characterised in that the nook closing member head (21) of the nook closing member (2) is from trocar
(1) trocar positioning hole (14) is stretched into, and is coordinated in the end of trocar needle body (11) and trocar head (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823993.7U CN206350747U (en) | 2016-08-01 | 2016-08-01 | Insertion puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823993.7U CN206350747U (en) | 2016-08-01 | 2016-08-01 | Insertion puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350747U true CN206350747U (en) | 2017-07-25 |
Family
ID=59346453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823993.7U Expired - Fee Related CN206350747U (en) | 2016-08-01 | 2016-08-01 | Insertion puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206350747U (en) |
-
2016
- 2016-08-01 CN CN201620823993.7U patent/CN206350747U/en not_active Expired - Fee Related
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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: 20170725 Termination date: 20200801 |