CN203790007U - Automatic puncturing device - Google Patents
Automatic puncturing device Download PDFInfo
- Publication number
- CN203790007U CN203790007U CN201420055011.5U CN201420055011U CN203790007U CN 203790007 U CN203790007 U CN 203790007U CN 201420055011 U CN201420055011 U CN 201420055011U CN 203790007 U CN203790007 U CN 203790007U
- Authority
- CN
- China
- Prior art keywords
- needle
- tail end
- puncturing
- spring
- pressing cover
- 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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Abstract
The utility model discloses an automatic puncturing device which comprises a machine frame. A needle pressing device and a puncturing needle are arranged on the machine frame, the needle pressing device comprises a cam mechanism, the puncturing needle comprises a needle sheath and a needle core sleeved with the needle sheath, a pressing cover is arranged at the tail end of the needle core, a spring, a check ring and a chuck are sequentially arranged in the pressing cover from bottom to top, the tail end of the needle core sequentially penetrates through the spring and the check ring, the top of the tail end of the needle core is connected with the lower end of the chuck, and a limiting table matched with the pressing cover is arranged at the tail end of the needle sheath. According to the automatic puncturing device, in the puncturing and broaching process, a driven rod of the cam mechanism repeatedly makes contact with the pressing cover, the cam mechanism replaces manpower to automatically and repeatedly carry out puncturing operation, and puncturing and broaching efficiency is improved; meanwhile, the spring device at the tail end of the needle core guarantees that the point of the needle core is right exposed of the needle sheath when the spring is pressed and the needle core goes into the needle sheath when the spring is released, and puncturing depths are consistent.
Description
Technical field
This utility model relates to technical field of medical instruments, relates in particular to a kind of automatic puncturing device.
Background technology
Percutaneous nephroscope lithotripsy is got a kind of invasive methods that stone technology is treatment kidney and proximal ureteral calculus at present, and the method curative effect certainly, little to patient's wound, only needs the aperture of 1cm left and right just can complete the operation that needs to do in the past the large otch of waist.First it penetrate puncture needle kidney aggregation system under ultrasonic guidance, and then be expanded to gradually service aisle after putting into seal wire, carries out rubble and get stone after indwelling working sheath under ureteroscope or PCN.In puncture reaming process, be all that doctor carries out repeated localised puncture by hand, the efficiency that so not only punctures is low, and is difficult to accurately hold the degree of depth and the angle of puncture, thereby has increased the weight of patient's damage, has increased the chance of massive hemorrhage and infection.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of automatic puncturing device, can automatically carry out repeated localised puncture operation with the insertion angle meeting the demands, and can determine the degree of depth of puncture, get the difficulty of stone operation and improve the safety of operation thereby reduce percutaneous nephroscope lithotripsy.
This utility model addresses the above problem by following technological means: a kind of automatic puncturing device, comprise frame, in described frame, be provided with pressing device and puncture needle, described pressing device comprises cam mechanism, described puncture needle comprises stylophore and is enclosed within the nook closing member in stylophore, described nook closing member tail end is provided with pressing cover, in pressing cover, be provided with successively from the bottom to top spring, back-up ring and dop, the tail end of nook closing member is successively through spring and back-up ring, the tail end top of nook closing member is connected with the lower end of dop, and the tail end of stylophore is provided with the limiting stand coordinating with pressing cover.
Further, on described cam, be provided with overload-release clutch.
Further, the inwall of described pressing cover is provided with spacing preiection.
Further, the lower end of described dop is provided with the groove coordinating with nook closing member tail end.
The beneficial effects of the utility model: automatic puncturing device of the present utility model, comprise frame, in described frame, be provided with pressing device and puncture needle, described pressing device comprises cam mechanism, described puncture needle comprises stylophore and is enclosed within the nook closing member in stylophore, described nook closing member tail end is provided with pressing cover, in pressing cover, be provided with successively from the bottom to top spring, back-up ring and dop, the tail end of nook closing member is successively through spring and back-up ring, the tail end top of nook closing member is connected with the lower end of dop, and the tail end of stylophore is provided with the limiting stand coordinating with pressing cover.This device, in puncture reaming process, the follower lever of cam mechanism contacts with pressing cover repeatedly, replace and automatically repeatedly carry out by hand puncture procedure with cam mechanism, the efficiency that has improved puncture reaming, meanwhile, the spring assembly of nook closing member tail end can ensure just exposing stylophore by pressing spring hour hands core tip, nook closing member indentation stylophore when trip spring, this degree of depth that has just ensured each puncture is consistent.
Brief description of the drawings
Below in conjunction with drawings and Examples, this utility model is further described.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below with reference to accompanying drawing, this utility model is elaborated, as shown in the figure: this automatic puncturing device, comprise frame 1, in described frame, be provided with pressing device and puncture needle 3, described pressing device comprises cam mechanism 2, described puncture needle comprises stylophore and is enclosed within the nook closing member 32 in stylophore 31, described nook closing member tail end is provided with pressing cover 33, in pressing cover, be provided with successively from the bottom to top spring 34, back-up ring 35 and dop 36, the tail end of nook closing member is successively through spring and back-up ring, the tail end top of nook closing member is connected with the lower end of dop, the tail end of stylophore is provided with the limiting stand 37 coordinating with pressing cover.This device, in puncture reaming process, the follower lever of cam mechanism contacts with pressing cover repeatedly, replace and automatically repeatedly carry out by hand puncture procedure with cam mechanism, the efficiency that has improved puncture reaming, meanwhile, the spring assembly of nook closing member tail end can ensure just exposing stylophore by pressing spring hour hands core tip, nook closing member indentation stylophore when trip spring, this degree of depth that has just ensured each puncture is consistent.
As the further improvement of technique scheme, on described cam, be provided with overload-release clutch 4, in the time there are abnormal conditions, can rotate by emergent stopping cam, interrupt the carrying out of puncture procedure.
As the further improvement of technique scheme, the inwall of described pressing cover is provided with spacing preiection 38, in repeated localised puncture process, because of reasons such as plant failures, the needle point very long part of stylophore of may emerging, this can bring very large potential safety hazard, and arranging of projection can limit the ultimate range that back-up ring moves down, define the ultimate range that nook closing member moves down, avoid causing in piercing process security incident.
As the further improvement of technique scheme, the lower end of described dop is provided with the groove 39 coordinating with nook closing member tail end.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. an automatic puncturing device, it is characterized in that: comprise frame (1), in described frame, be provided with pressing device and puncture needle (3), described pressing device comprises cam mechanism (2), described puncture needle comprises stylophore (31) and is enclosed within the nook closing member (32) in stylophore, described nook closing member tail end is provided with pressing cover (33), in pressing cover, be provided with successively from the bottom to top spring (34), back-up ring (35) and dop (36), the tail end of nook closing member is successively through spring and back-up ring, the tail end top of nook closing member is connected with the lower end of dop, the tail end of stylophore is provided with the limiting stand (37) coordinating with pressing cover.
2. automatic puncturing device according to claim 1, is characterized in that: on described cam, be provided with overload-release clutch (4).
3. automatic puncturing device according to claim 2, is characterized in that: the inwall of described pressing cover is provided with spacing preiection (38).
4. automatic puncturing device according to claim 3, is characterized in that: the lower end of described dop is provided with the groove (39) coordinating with nook closing member tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055011.5U CN203790007U (en) | 2014-01-28 | 2014-01-28 | Automatic puncturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055011.5U CN203790007U (en) | 2014-01-28 | 2014-01-28 | Automatic puncturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790007U true CN203790007U (en) | 2014-08-27 |
Family
ID=51372289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055011.5U Expired - Fee Related CN203790007U (en) | 2014-01-28 | 2014-01-28 | Automatic puncturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203790007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640622A (en) * | 2016-03-18 | 2016-06-08 | 中南大学 | Automatic reset type anti-damage trocar |
-
2014
- 2014-01-28 CN CN201420055011.5U patent/CN203790007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640622A (en) * | 2016-03-18 | 2016-06-08 | 中南大学 | Automatic reset type anti-damage trocar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |