CN107260259A - spinal epidural outer catheter apparatus - Google Patents
spinal epidural outer catheter apparatus Download PDFInfo
- Publication number
- CN107260259A CN107260259A CN201710659792.7A CN201710659792A CN107260259A CN 107260259 A CN107260259 A CN 107260259A CN 201710659792 A CN201710659792 A CN 201710659792A CN 107260259 A CN107260259 A CN 107260259A
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- China
- Prior art keywords
- head
- traction
- outer catheter
- traction fiber
- afterbody
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B2017/320044—Blunt dissectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0007—Epidural catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1003—Spinal column
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a kind of spinal epidural outer catheter apparatus, it includes operation handle, body, fluid injection pipeline, traction component and body head-bent drive component, the afterbody of the body is connected in operation handle, and the reservoir channel of insertion body in the axial direction is provided with the body；The fluid injection pipeline is connected with the reservoir channel；The traction component includes two traction fibers, and traction fiber is movably located on body, and the head of traction fiber is fixed in the head of body；The body head-bent drive component is movably arranged in operation handle, and afterbody of the body head-bent drive component respectively with two traction fibers is connected.The present invention can easily peel off inflammatory tissue by controlling the bending direction and angle of catheter head manually, and directly can inject the medicine of prevention of inflammation recurrence in inflammation part, while realizing effect that machinery is loosened with chemical dispersion.
Description
Technical field
The present invention relates to a kind of spinal epidural outer catheter apparatus, belong to technical field of medical instruments.
Background technology
At present, lumbocrural pain is not only relevant to the direct mechanical pressure of nerve root with Lumbar intervertebral disc protrusion, also with way of escape little Guan
The inflammatory pain factor secreted out of after section unstability is pasted onto the change that pressuring neural root is caused around intervertebral foramen fibr tissue or ligament
Learn sexual stimulus close relation.Inflammatory material herein such as can not effectively discharge diseased region, easily stick in intervertebral foramen ligament, resistance
The unique gateway of backbone is filled in, so as to cause pain.
The protrasion of the lumbar intervertebral disci is as one of common disease for causing pain in waist and lower extremities, and its common therapeutic modality is to be noted in canalis sacralis
Penetrate treatment.But it can not completely arrive at expected portion because the reason such as epidural space fibrous adherence or lesion compressing is easily caused medicine
Position, and the therapeutic modality is only by injecting medicine pain of alleviation, it is impossible to thoroughly remove the anti-inflammatory agent for causing pain.
By conduit carry out nerve root loosen operation position it is narrow, endoscope can not be inserted, it is impossible to which direct-view is lower to be operated.It is existing
Row modus operandi fully relies on the site of action of observation and locating apparatus in X-ray art.Develop under ray unintelligible be easily caused
Maloperation, injured nerve root, operation risk is high.When removing inflammatory tissue using conduit, conduit head end bent portion is fully relied on
Frictional force between tissue is realized, when the too soft rigidity of head end is not enough, it is impossible to fully and completely realize and peel off remove function.It is existing
Epidural catheter apparatus its insertion part be made up of completely flexible nonmetal material, drawing is easily broken off in art, and development work(
Peel strength and can be bent weaker, must be applied in combination, complex operation, risk is higher, shell with special wire guide when using
Limited in one's ability from removal anti-inflammatory agent, curative effect is not good enough.
The content of the invention
The technical problems to be solved by the invention are to overcome the defect of prior art there is provided a kind of spinal epidural outer catheter device
Tool, it can easily peel off inflammatory tissue by controlling the bending direction and angle of catheter head manually, and can be direct
The medicine of prevention of inflammation recurrence is injected in inflammation part, while realizing effect that machinery is loosened with chemical dispersion.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of spinal epidural outer catheter apparatus, it is wrapped
Include：
Operation handle；
Body, the afterbody of the body is connected in operation handle, and insertion in the axial direction is provided with the body
The reservoir channel of body；
Fluid injection pipeline, the fluid injection pipeline is connected with the reservoir channel；
Traction component, the traction component includes two traction fibers, and traction fiber is movably located on body, and is led
The head for drawing silk is fixed in the head of body；
Body head-bent drive component, the body head-bent drive component is movably arranged in operation handle, and
And afterbody of the body head-bent drive component respectively with two traction fibers is connected, will pass through the action body head
Drive component is bent, wherein one traction fiber is moved to the afterbody of body in body and is made an other traction fiber in body
The interior head to body is moved, so that the head of body is swung.
A kind of concrete structure of body is further provided, the body includes outer catheter and at least a portion is set outside
Inner catheter in conduit, the traction fiber is arranged in outer catheter.
Further for the bending for being easy to body head, the head of the body is provided with outer guide head, the outer guiding
Head is connected on the head of the outer catheter, and the head of two traction fibers is fixed in outer guide head.
Further, the head of the body is additionally provided with interior guide head, and the head of the interior guide head is affixed to be oriented to outside
In head, the afterbody of the interior guide head inserts the inner chamber of the outer catheter.
Further, it is provided with the interior guide head in first through hole, the outer catheter and is provided with the second through hole, it is described interior
Third through-hole is provided with conduit, the first through hole, second through hole connect to form the fluid injection with the third through-hole
At least a portion of passage.
Further, the outer catheter is made up of thermoplastic elastomer (TPE)；And/or the inner catheter is made up of metal material.
Further provide a kind of concrete structure of body head-bent drive component, the body head-bent driving group
Part includes rotating wheel, and the rotating wheel is installed in rotation in operation handle.
The first traction fiber fixed seat is provided with two traction fibers, the rotating wheel further for being fixed in rotating wheel
With the second traction fiber fixed seat, the afterbody of one of traction fiber is fixed in the first traction fiber fixed seat, another traction
The afterbody of silk is fixed in the second traction fiber fixed seat.
Further for making to set on the axisymmetrical of body without cross one another phenomenon, two traction fibers between traction fiber
Put, the first traction fixed seat and the second traction fixed seat are symmetrical arranged.
A kind of concrete structure of fluid injection pipeline is further provided, the fluid injection pipeline includes female Luer and catheter,
The import of the catheter is connected with the female Luer, and the outlet of the catheter is connected with the reservoir channel.
Employ after above-mentioned technical proposal, the present invention has following beneficial effect：
1st, the present invention makes wherein one traction fiber in body to body by acting body head-bent drive component
Afterbody moves and an other traction fiber is moved in body to the head of body, so that the head of body is swung,
Rotating wheel is namely rotated, manually the bending direction and angle of control catheter head, realize that function is peeled off in the bending of conduit, and
Peel strength is high, very easy to use, and can clearly show the position touched and depth under iconography guiding in real time, pass through
Body head-bent drive component easily peels off inflammatory tissue, and can be direct in inflammation part by fluid injection pipeline and reservoir channel
The medicine of prevention of inflammation recurrence is injected, while realizing effect that machinery is loosened with chemical dispersion；
2nd, because two traction fibers of the present invention are set on the axisymmetrical of body, the first traction fixed seat and second is led
Draw fixed seat to be symmetrical arranged, in operation, without obstruction is intersected between traction fiber, revolving force is small, stirs slim and graceful, is adapted to one hand
Operation；
3rd, the head of body of the invention, which is provided with the outer guide head that metal material is made, ray, develops apparent, gold
Belong to that guide head is rigidly good, peel strength is further improved, can be with traction fiber compound bending, and machinery effect of loosening is good；
4th, the outer catheter of composition body of the invention can improve the facility of operation using the outer catheter for carrying developing function
Property.
5th, the inner catheter that metal is made is provided with outer catheter, development definition can be significantly increased, be easy to position tissue position
Put, can also increase catheter, it is to avoid pull is broken in art；
6th, due to being provided with the reservoir channel of insertion body in the axial direction in body, liquid outlet on the head of interior guide head,
Accurate positioning is targetted, the infusion of medicine that directly can be recurred prevention of inflammation realizes that chemical dispersion and machinery are loosened to operative site
The function being combined.
Brief description of the drawings
Fig. 1 is the stereogram of the spinal epidural outer catheter apparatus of the present invention；
Fig. 2 is the structural representation of the spinal epidural outer catheter apparatus of the present invention；
Fig. 3 is the schematic internal view of the spinal epidural outer catheter apparatus of the present invention；
Fig. 4 is Fig. 3 B-B sectional views；
Fig. 5 is the I portions amplification view in Fig. 3.
Embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
As shown in Fig. 1~5, a kind of spinal epidural outer catheter apparatus, it includes：
Operation handle 1；
Body, the afterbody of the body is connected in operation handle 1, and insertion in the axial direction is provided with the body
The reservoir channel of body；
Fluid injection pipeline 4, the fluid injection pipeline 4 is connected with the reservoir channel；
Traction component, the traction component includes two traction fibers 7, and traction fiber 7 is movably located on body, and
The head of traction fiber 7 is fixed in the head of body；
Body head-bent drive component, the body head-bent drive component is movably arranged in operation handle 1, and
And afterbody of the body head-bent drive component respectively with two traction fibers 7 is connected, will pass through the action body head
Portion bends drive component, wherein one traction fiber 7 is moved to the afterbody of body in body and an other traction fiber is existed
Moved in body to the head of body, so that the head of body is swung.
As shown in Fig. 1,4,5, the inner catheter 9 that the body includes outer catheter 8 and is arranged at least partially in outer catheter,
The traction fiber is arranged in outer catheter 8.Outer catheter 8 and the assembling of inner catheter 9 form and introduce pipe 3, are the major part of body, interior
Conduit 9 can increase the rigidity for introducing pipe 3, be easy to being inserted and removed from for apparatus；In the present embodiment, a part for inner catheter 9 is inserted
Enter in outer catheter 8, the remainder of inner catheter 9 is located in operation handle 1, and is connected with fluid injection pipeline 4.
As shown in figure 5, for the ease of the bending on body head, the head of the body is provided with outer guide head 5, described outer
Guide head is connected on the head of the outer catheter 8, and the head of two traction fibers 7 is fixed in outer guide head 5.Led outside described
It can be made up to first 5 of metal material, to increase the intensity of guiding-tube bend stripping, while increasing the definition of development；Specifically,
Outer guide head 5 can be made up of stainless steel
As shown in figure 5, the head of the body is additionally provided with interior guide head 6, the head of the interior guide head 6 is affixed outside
In guide head 5, the afterbody of the interior guide head 6 inserts the inner chamber of the outer catheter 8.
As shown in figure 5, being provided with first through hole in the interior guide head 6, the second through hole is provided with the inner catheter 8,
Third through-hole is provided with the inner catheter 9, the first through hole, second through hole connect to form institute with the third through-hole
State at least a portion of reservoir channel.
The outer catheter 8 is made up of thermoplastic elastomer (TPE)；The inner catheter 9 is made up of metal material；Specifically, in described
Inner catheter 9 can be made up of stainless steel material and be made of metal material for conduit 9, can increase definition and the insertion section of apparatus development
The rigidity divided.
As shown in Figure 1, 2, the body head-bent drive component includes rotating wheel 2, and the rotating wheel 2 is rotationally pacified
In operation handle 1.
As shown in figure 1, being provided with the first traction to be fixed in rotating wheel 2 in two traction fibers 7, the rotating wheel 2
The silk traction fiber fixed seat 13 of fixed seat 12 and second, the afterbody of one of traction fiber 7 is fixed in the first traction fiber fixed seat 12
On, the afterbody of another traction fiber 7 is fixed in the second traction fiber fixed seat 13.
As shown in figure 1, in order that without cross one another phenomenon, axis of two traction fibers 7 on body between traction fiber 7
It is symmetrical arranged, the first traction traction of fixed seat 12 and second fixed seat 13 is symmetrical arranged.
As shown in Figure 1, 2, 3, the fluid injection pipeline 4 includes female Luer 10 and catheter 11, and the catheter 11 enters
Mouth is connected with the female Luer 10, and the outlet of the catheter 11 is connected with the reservoir channel；Specifically, catheter
11 outlet is connected with inner catheter 9.
The course of work of the present invention is as follows：
Adjustment rotating wheel 2 first makes the front end of introducing pipe 3 keep straight line original state, and the edge of pipe 3 is introduced into by puncture channel
Sacral hiatus inserts the nerve root position of backbone, and the front position of body is positioned under iconography guiding；According to position in art and pipe
The relative position of body selects appropriate direction to stir rotating wheel 2, and the outer guide head 5 of introducing pipe 3 front end is driven by pulling traction fiber 7
Bending；By outer guide head 5 close to the neural root surface for needing to peel off under iconography guiding；Rotating wheel 2 is operated repeatedly, makes bending
The outer guide head 5 of shape is swung on adhesion organization surface, is reused image documentation equipment and is checked peeling effect, until in frictional force
It is lower to be stripped clean adhesion of nerver root tissue, complete machinery and loosen；Then medicine prevention of inflammation recurred is from female Luer 10
Place's injection, medicine is realized along catheter 11, inner catheter 9, the inner chamber of outer catheter 8, interior guide head 6 until being expelled to the loose position of nerve root
Chemical dispersion, at the same time, decoction can rinse the cotton-shaped adhesion chip of mechanical stripping well under injection thrust, simultaneously
Realize the curative effect that machinery is loosened with chemical dispersion.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in this hair
Within bright protection domain.
Claims (10)
1. a kind of spinal epidural outer catheter apparatus, it is characterised in that it includes：
Operation handle (1)；
Body, the afterbody of the body is connected in operation handle (1), and through tube in the axial direction is provided with the body
The reservoir channel of body；
Fluid injection pipeline (4), the fluid injection pipeline (4) is connected with the reservoir channel；
Traction component, the traction component includes two traction fibers (7), and traction fiber (7) is movably located on body, and
The head of traction fiber (7) is fixed in the head of body；
Body head-bent drive component, the body head-bent drive component is movably arranged in operation handle (1), and
Afterbody of the body head-bent drive component respectively with two traction fibers (7) is connected, will pass through the action body head
Portion bends drive component, wherein one traction fiber (7) is moved in body to the afterbody of body and makes an other traction fiber
Moved in body to the head of body, so that the head of body is swung.
2. spinal epidural outer catheter apparatus according to claim 1, it is characterised in that：The body includes outer catheter (8)
The inner catheter (9) in outer catheter is arranged on at least a portion, the traction fiber is arranged in outer catheter (8).
3. spinal epidural outer catheter apparatus according to claim 2, it is characterised in that：The head of the body is provided with outer
Guide head (5), the outer guide head (5) is connected on the head of the outer catheter (8), and the head of two traction fibers (7) is solid
It is connected in outer guide head (5).
4. spinal epidural outer catheter apparatus according to claim 3, it is characterised in that：The head of the body is additionally provided with
Interior guide head (6), the head of the interior guide head (6) is affixed in outer guide head (5), and the afterbody of the interior guide head (6) is inserted
Enter the inner chamber of the outer catheter (8).
5. spinal epidural outer catheter apparatus according to claim 4, it is characterised in that：Set in the interior guide head (6)
There is a first through hole, be provided with the outer catheter (8) in the second through hole, the inner catheter (9) and be provided with third through-hole, described the
One through hole, second through hole connect at least a portion to form the reservoir channel with the third through-hole.
6. spinal epidural outer catheter apparatus according to claim 2, it is characterised in that：The outer catheter (8) is by thermoplasticity
Elastomer is made；And/or the inner catheter (9) is made up of metal material.
7. spinal epidural outer catheter apparatus according to claim 1, it is characterised in that：The body head-bent driving group
Part includes rotating wheel (2), and the rotating wheel (2) is installed in rotation in operation handle (1).
8. spinal epidural outer catheter apparatus according to claim 7, it is characterised in that：It is provided with the rotating wheel (2)
First traction fiber fixed seat (12) and the second traction fiber fixed seat (13), the afterbody of one of traction fiber (7) are fixed in first
In traction fiber fixed seat (12), the afterbody of another traction fiber (7) is fixed in the second traction fiber fixed seat (13).
9. spinal epidural outer catheter apparatus according to claim 8, it is characterised in that：Two traction fibers (7) are on body
Axisymmetrical set, it is described first traction fixed seat (12) and second draw fixed seat (13) be symmetrical arranged.
10. spinal epidural outer catheter apparatus according to claim 1, it is characterised in that：The fluid injection pipeline (4) includes Shandong
That joint (10) and catheter (11), the import of the catheter (11) are connected with the female Luer (10), the drain
The outlet of pipe (11) is connected with the reservoir channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659792.7A CN107260259B (en) | 2017-08-04 | 2017-08-04 | Spinal epidural catheter instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659792.7A CN107260259B (en) | 2017-08-04 | 2017-08-04 | Spinal epidural catheter instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107260259A true CN107260259A (en) | 2017-10-20 |
| CN107260259B CN107260259B (en) | 2023-08-11 |
Family
ID=60075984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659792.7A Active CN107260259B (en) | 2017-08-04 | 2017-08-04 | Spinal epidural catheter instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107260259B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172142A (en) * | 2018-09-10 | 2019-01-11 | 潍坊护理职业学院 | A kind of ear-nose-throat department check and treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012176119A (en) * | 2011-02-25 | 2012-09-13 | Japan Lifeline Co Ltd | Electrode catheter |
| CN103877660A (en) * | 2012-02-10 | 2014-06-25 | 先健科技(深圳)有限公司 | Adjustable bent sheath |
| CN104367372A (en) * | 2014-11-26 | 2015-02-25 | 江苏金鹿集团医疗器械有限公司 | Spine intervertebral epidural minimally-invasive equipment |
| CN104667410A (en) * | 2015-03-12 | 2015-06-03 | 耿涛 | Spinal epidural minimally-invasive catheter system |
| CN104859167A (en) * | 2015-05-18 | 2015-08-26 | 南通伊诺精密塑胶导管有限公司 | Manufacturing method of controllable bent catheter used for head interventional treatment |
| CN105030308A (en) * | 2015-07-02 | 2015-11-11 | 周建明 | Puncture needle minimally invasive placing type catheter set |
| CN105963847A (en) * | 2016-04-18 | 2016-09-28 | 江苏省华星医疗器械实业有限公司 | Catheter device for external minimal invasive surgery on spinal intervertebral dura mater |
| CN208481422U (en) * | 2017-08-04 | 2019-02-12 | 常州市延陵电子设备有限公司 | Spinal epidural outer catheter instrument |
-
2017
- 2017-08-04 CN CN201710659792.7A patent/CN107260259B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012176119A (en) * | 2011-02-25 | 2012-09-13 | Japan Lifeline Co Ltd | Electrode catheter |
| CN103877660A (en) * | 2012-02-10 | 2014-06-25 | 先健科技(深圳)有限公司 | Adjustable bent sheath |
| CN104367372A (en) * | 2014-11-26 | 2015-02-25 | 江苏金鹿集团医疗器械有限公司 | Spine intervertebral epidural minimally-invasive equipment |
| CN104667410A (en) * | 2015-03-12 | 2015-06-03 | 耿涛 | Spinal epidural minimally-invasive catheter system |
| CN104859167A (en) * | 2015-05-18 | 2015-08-26 | 南通伊诺精密塑胶导管有限公司 | Manufacturing method of controllable bent catheter used for head interventional treatment |
| CN105030308A (en) * | 2015-07-02 | 2015-11-11 | 周建明 | Puncture needle minimally invasive placing type catheter set |
| CN105963847A (en) * | 2016-04-18 | 2016-09-28 | 江苏省华星医疗器械实业有限公司 | Catheter device for external minimal invasive surgery on spinal intervertebral dura mater |
| CN208481422U (en) * | 2017-08-04 | 2019-02-12 | 常州市延陵电子设备有限公司 | Spinal epidural outer catheter instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109172142A (en) * | 2018-09-10 | 2019-01-11 | 潍坊护理职业学院 | A kind of ear-nose-throat department check and treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107260259B (en) | 2023-08-11 |
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