CN107374703A - A kind of blood vessel card punch - Google Patents
A kind of blood vessel card punch Download PDFInfo
- Publication number
- CN107374703A CN107374703A CN201710726514.9A CN201710726514A CN107374703A CN 107374703 A CN107374703 A CN 107374703A CN 201710726514 A CN201710726514 A CN 201710726514A CN 107374703 A CN107374703 A CN 107374703A
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- support tube
- trombone slide
- coil
- card punch
- blood vessel
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- 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
- A61B17/3209—Incision instruments
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of blood vessel card punch, including crop bar, coil, trombone slide, support tube, thrust torsion and back-moving spring；The trombone slide is slidedly assemblied in support tube, and it is circumferential spacing between support tube, the support tube tail end is turned round with thrust and fixed, and the trombone slide tail end is turned round by back-moving spring and thrust and assembled, the front end of the trombone slide is fixedly connected with crop bar, forms the axial slip component of card punch；The coil empty set is connected on support tube between axial slip component by worm drive, and the coil front end is fixed with conehead pipe, forms circumferential ring cutting component；The crop bar telescopic slide is assemblied in conehead pipe, carries out the rotary-cut of vascular wall by the annular cutting edge being oppositely arranged on crop bar and conehead pipe respectively.Smart structural design of the present invention, to vascular wall formed rotary-cut effect, can quickly rotary-cut goes out the regular circular hole of an inner wall smooth on vascular wall, it is easy to use and easily operated, hence it is evident that to improve procedure efficiency.
Description
Technical field
The invention belongs to medical device technology, and in particular to a kind of blood vessel card punch of cardiac surgery operation.
Background technology
In cardiac operation, such as in coronary artery bypass surgery, it usually needs beaten on aorta ascendens vascular wall
One circular open, for the bridge blood vessel that coincide.Conventional method is that cardiac surgeon cuts out one using scalpel on vascular wall
Circular hole, but the circular hole irregular gone out by hand cut, and in surgical procedure easy hematopoiesis tube wall tissue chip it is residual
Stay, and residual tissue certainly will cause thrombus, threaten the postoperative survival of patient.It is this with the development of cardiac surgery operation technology
Scalpel cuts out the method for cutting punching because excessively original and operation risk be present and abandoned, and is gradually replaced by blood vessel card punch
Generation.
The blood vessel card punch of Clinical practice is based on import now, and this kind of product is substantially by foreign countries such as Medtronic, thyrite good fortune
Giant is monopolized, price virtual height, causes the increase of corrective surgery expense.As notification number be CN202654178U, CN202554009U,
The Chinese patents such as CN103584904A propose the blood vessel card punch of kinds of schemes respectively, but such scheme can not be realized in knife
Rotary-cut punching is carried out while head is quickly dropped back, the card punch of this type is difficult to get a rule on vascular wall rapidly
Circular hole, and it is not thorough to be likely to result in punching, cutting, causes tissue adhesion, causes to extend operating time with increasing patient institute
By pain, or even cause the failure of operation.
The content of the invention
Present invention solves the technical problem that it is：Lacked for punching, cutting existing for existing blood vessel card punch is halfway
Fall into, there is provided a kind of blood vessel card punch reasonable in design, easy to use, can quickly rotary-cut goes out in one on vascular wall
The smooth regular circular hole of wall, and resection organization is taken out.
The present invention adopts the following technical scheme that realization：
A kind of blood vessel card punch, including crop bar 1, coil 3, trombone slide 5, support tube 6, thrust torsion 7 and back-moving spring 8；
The trombone slide 5 is slidedly assemblied in support tube 6, and circumferential spacing, the tail end of support tube 6 between support tube 6
7 are turned round with thrust to fix, the tail end of trombone slide 5 turns round 7 assemblings by back-moving spring 8 and thrust, and the front end of the trombone slide 5 is fixedly connected
There is crop bar 1, form the axial slip component of card punch；
The empty set of coil 3 is connected on support tube 6 between axial slip component by worm drive, the rotation
The front end of pipe 3 is fixed with conehead pipe 2, forms circumferential ring cutting component；
The telescopic slide of crop bar 1 is assemblied in conehead pipe 2, respectively by being oppositely arranged on crop bar 1 and conehead pipe 2
Annular cutting edge carry out vascular wall rotary-cut.
Further, the axial slip component also includes the pull handle 4 being integrally fixedly connected with trombone slide 5,4 sets of the pull handle
On coil 3, the outside of pull handle 4, which is provided with, is used for the positioning hole that finger passes through.
Further, the trombone slide 5 is provided with the trombone slide sliding block 5-1 of protrusion, is axially arranged with support tube on the support tube 6
Guide groove 6-1, the trombone slide sliding block 5-1 slips are inlaid in support tube guide groove 6-1, realize the axle between trombone slide and support tube
It is spacing with circumference to being oriented to.
As a preferred embodiment of the present invention, pass through worm drive Standard, institute between the pull handle 4 and coil 3
Stating worm drive structure includes being separately positioned on the inwall of pull handle 4 and the outer wall of coil 3 and the internal thread and external screw thread that are mutually spirally connected.
As another preferred scheme of the present invention, filled between the crop bar 1 and coil 3 by worm drive structure
Match somebody with somebody, the worm drive structure is included in the transmission pin 9 being radially fixedly installed of the crop bar 1, the transmission pin 9
Slide in the motion thread groove 3-2 set fitted to the inwall of coil 3 end.
In this programme, the motion thread groove 3-2 is two helicla flutes in 180 ° of stagger settings.
In the blood vessel card punch of the present invention, the crop bar 1 includes nose cone 1-1, connection thin bar 1-2 and crop bar main body
1-3, the crop bar main body 1-3 fix the front end for being inserted into trombone slide 5, and the nose cone 1-1 is less than crop bar master by section
The connection thin bar 1-2 of body is arranged at crop bar main body 1-1 front end, and the big end margin around the nose cone 1-1 is crop bar
Cutting edge, the big end of the crop bar main body 1-3 and nose cone 1-1 and the inner tube telescopic slide of conehead pipe 2 assemble, the cone
The inner tube front edge of head tube 2 is the cutting edge of conehead pipe.
Further, after the connection thin bar 1-2 withdraws the inner tube of conehead pipe 2, formed with conehead pipe inner tube and accommodate excision blood
The cavity volume 2-1 of tube wall tissue.
The blood vessel card punch of the present invention, smart structural design, by pulling pull handle, after direct pull head metal bar is rapid
Remove, while drive metal conehead to rotate, can quickly rotary-cut goes out one on vascular wall so as to form rotary-cut effect to vascular wall
The regular circular hole of individual inner wall smooth, and taken out resection organization by the cavity volume of card punch front end, it is easy to use, can be at same
It is used for multiple times in operation, and it is easily operated, hence it is evident that procedure efficiency is improved, alleviates the workload and the suffered pain of patient of doctor
It is bitter.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Brief description of the drawings
Fig. 1 is the blood vessel card punch external structure schematic diagram in embodiment one and embodiment two.
Fig. 2 is the blood vessel card punch inner transverse cross section structure schematic diagram in embodiment one.
Fig. 3 is the blood vessel card punch internal longitudinal cross-section structural representation in embodiment one.
Fig. 4 is the assembling schematic diagram between trombone slide and support tube in embodiment one.
Fig. 5 a, 5b are respectively the structural representation of the pull handle and coil in embodiment one, it is specific represent pull handle and coil it
Between worm drive structural representation.
Fig. 6 a, 6b are respectively the rotary-cut punching operating diagram of the blood vessel card punch in embodiment one.
Fig. 7 is the blood vessel card punch inner transverse cross section structure schematic diagram in embodiment two.
Fig. 8 is the blood vessel card punch internal longitudinal cross-section structural representation in embodiment two.
Fig. 9 is the worm drive structural representation between crop bar and coil in embodiment two.
Label in figure：1st, crop bar, 1-1, nose cone, 1-2, connection thin bar, 1-3, crop bar main body, 1-4, cutting edge, 2,
Conehead pipe, 2-1, cavity volume, 2-2, cutting edge, 3, coil, 3-1, external screw thread, 3-2, motion thread groove, 4, pull handle, 4-1, internal thread,
5th, trombone slide, 5-1, trombone slide sliding block, 6, support tube, 6-1, support tube guide groove, 7, thrust turn round, 8, back-moving spring, 9, transmission pin.
Embodiment
Embodiment one
Referring to Fig. 1-4, it is illustrated that in blood vessel card punch be a preferred embodiment of the present invention, specifically include crop bar 1, cone
7 and back-moving spring 8 are turned round in head tube 2, coil 3, pull handle 4, trombone slide 5, support tube 6, thrust, and the wherein main body of card punch is support tube 6,
The rotary-cut action of card punch is coordinated by axial slip component and circumferential ring cutting component two parts to be completed, wherein, axial slip group
Part includes crop bar 1, pull handle 4, trombone slide 5, and circumferential ring cutting component includes conehead pipe 2, coil 3, and the telescopic slide of crop bar 1 is assemblied in
In conehead pipe 2, axially opposing sliding between the conehead pipe 2 in crop bar 1 and circumferential ring cutting component in axial slip component
Also rotate against simultaneously, the rotary-cut of vascular wall is carried out by the annular cutting edge being oppositely arranged on crop bar 1 and conehead pipe 2.
Specifically, the trombone slide 5 in axial slip component is slidedly assemblied in support tube 6, adopted between trombone slide 5 and support tube 6
Coordinated with gap, trombone slide 5 can be along the inner tube axial slip of support tube 6, while circumferential limit is carried out between trombone slide 5 and support tube 6
Position assembling, prevents that trombone slide 5 from being rotated in a circumferential direction relative to support tube.As shown in figure 4, the present embodiment is symmetrical on the outside of trombone slide 5
Trombone slide sliding block 5-1 provided with protrusion, corresponding that support tube guide groove 6-1 is axially arranged with support tube 6, trombone slide sliding block 5-1 is slided
It is dynamic to be inlaid in support tube guide groove 6-1, realize that the axially directed and circumference between trombone slide and support tube is spacing, realize trombone slide edge
Support tube is slid axially without deflecting, while trombone slide sliding block 5-1 is used to be fixedly connected with the pull handle 4 of outside, and pull handle 4 is set with
On coil 3, the outside of pull handle 4, which is provided with, is used for the positioning hole that finger passes through, and pull handle is fixed with trombone slide, and trombone slide edge is driven by pull handle
Support tube is slided, and trombone slide is fixed with crop bar, final to drive crop bar to move backward rapidly when pull handle moves backward.
The tail end of support tube 6 is turned round 7 with thrust and fixed, and the tail end of trombone slide 5 turns round 7 assemblings by back-moving spring 8 and thrust, resets bullet
The compression of spring 8 is arranged in the tail end of support tube, and one end is turned round 7 fixations with thrust and contacted, and the other end contacts with the tail end of trombone slide 5, uses
In by trombone slide 5, together with axial slip component integral reset, crop bar 1 is fixedly installed on the front end of trombone slide 5, crop bar 1, trombone slide 5
It is solidly fixed with pull handle 4, the axial slip component as card punch.
Then empty set is on support tube 6 for coil 3 in the circumferential ring cutting component of card punch, the inner tube 3 and support tube 6 of coil 3
Between coordinated using gap, coil 3 can freely rotate relative to support tube 6, and conehead pipe 2 is fixedly installed on the front end of coil 3, with rotation
The integrally connected of pipe 3 forms the circumferential ring cutting component together rotated.
In the present embodiment, coil 3 is assemblied between support tube 6 and the inner tube of pull handle 4, and wherein coil 3 is in the empty set of support tube 6
Coordinate, and connected between coil 3 and the pull handle 4 of axial slip component by worm drive structure, by worm drive structure by axle
The rotary motion of coil 3 is converted to the linear motion of sliding assembly.Specifically as shown in figure 5 a and 5b, the spiral of the present embodiment
Drive mechanism is provided with internal thread 4-1 in the inwall of pull handle 4, revolved using the motion thread being arranged between pull handle 4 and coil 3
The outer wall of pipe 3 is provided with the external screw thread 3-1 being spirally connected in internal thread 4-1, and pull handle 4 passes through motion thread during linear motion
The linear motion of pull handle is converted into the rotary motion of coil 3.
As shown in figures 6 a and 6b, crop bar 1 and conehead pipe 2 use metal material, and wherein crop bar 1 includes nose cone
1-1, connection thin bar 1-2 and crop bar main body 1-3, crop bar main body 1-1 diameter are equal to nose cone 1-1 outside diameter, cut
Head rod main body 1-3 fixes the front end for being inserted into trombone slide 5, and is guided through the conehead pipe 2 of the front end of coil 3, and trombone slide drives crop
During bar axial slip, nose cone 1-1 can be recovered in conehead pipe 2, nose cone 1-1 is less than crop bar master by section
The connection thin bar 1-2 of body is arranged at crop bar main body 1-1 front end, wherein, the big end margin around nose cone 1-1 is crop bar
Cutting edge 1-4, crop bar main body 1-3 and nose cone 1-1 big end and the inner tube telescopic slide of conehead pipe 2 are assembled, and conehead
The inner tube front edge of pipe 2 is the cutting edge 2-2 of conehead pipe, when nose cone 1-1 is return back in conehead pipe 2, on nose cone 1-1
The cutting edge 2-2 that cutting edge 1-4 moves along a straight line to conehead pipe 2 is close, meanwhile, the cutting edge 2-2 of conehead pipe 2 rotates, and passes through
Two opposite annular cutting edges realize the rotary-cut to vascular wall.
After connection thin bar 1-2 and nose cone 1-1 return back to the inner tube of conehead pipe 2, connection thin bar 1-2 and conehead pipe 2
Inner tube forms the ring-shaped chamber 2-1 for accommodating excision vascular wall tissue, avoids the vascular wall tissue after excision from being detained shape in the blood vessels
Into thrombus.After completing punching, pull handle is discharged, the nose cone 1-1 of chipping head and is resetted forward in the presence of back-moving spring, stretching
Conehead pipe 2, the tissue in cavity volume 2-1 can now be taken out.
Embodiment two
Referring to Fig. 7-9, the present embodiment and the difference of embodiment one are, the worm drive structure setting of the present embodiment
Between crop bar 1 and coil 3, coordinated between pull handle 4 and coil 3 and between coil 3 and support tube 6 using gap, rotation
Pipe 3 can be respectively relative to pull handle 4 and support tube 6 rotates freely, and pin 9 is driven by one in the radially fixed setting of crop bar 1,
Transmission pin both ends protrusion is set, and it is in 180 ° of motion thread groove 3-2 to stagger to set two in the inwall of coil 3, trundle
Slide respectively in two motion thread groove 3-2 at the both ends of nail 9.
Pull handle 4 is pulled, drives trombone slide 5 to be slided backward in the guide groove of support tube 6, the crop being also secured on trombone slide 5
The nose cone 1-1 of bar 1 is moved backward rapidly enters conehead pipe 2, because the transmission pin being fixed on crop bar does straight line backward
Motion, by motion thread groove 3-2 coil 3 and conehead pipe 2 will be driven to rotate, formed and revolved with nose cone 1-1 cutting edge
Cut effect.After completing punching, pull handle is discharged, chipping head and pull handle reset forward in the presence of back-moving spring.
When being performed the operation using embodiment one and embodiment two, first by target blood lancet in required punch position
A cross open is pierced, blood vessel card punch is then held and the nose cone 1-1 of crop bar 1 is passed through into cross open intravasation inner chamber,
The vascular wall tissue on cross open periphery is placed between nose cone 1-1 and conehead pipe 2, blood vessel card punch is propped up with the palm centre of the palm
Thrust button 7, dropped back after pulling pull handle 4, the crop bar 1 of metal rapid, while metal cone head tube 2 rotates, vascular wall tissue leads to
To cross corresponding cutting edge on nose cone 1-1 and conehead pipe 2 and complete cutting and boring, the vascular wall tissue cut is contained in cavity volume 2-1,
Pull handle 4 is unclamped, resection organization is pushed out conehead tube cavity with crop bar 1, and after resection organization is removed, blood vessel card punch can be again
Use.The blood vessel card punch of the present invention, smart structural design, by pulling pull handle, direct pull head metal is dropped back rapidly, together
When drive the rotation of metal conehead, can quickly rotary-cut goes out inner wall smooth on vascular wall so as to form rotary-cut effect
Regular circular hole, and resection organization is taken out, it is easy to use, it can be used for multiple times in same operation, and it is easily operated, hence it is evident that carry
High procedure efficiency, alleviate doctor workload and patient suffered by pain.
Furthermore, it is necessary to explanation, the present invention is not limited to the above-described embodiments, as long as its part does not specify specific size
Or shape, then the part can be any size or shape being adapted with its structure, no matter and making in its material composition
Any change, it is every to use structure design provided by the present invention, all it is a kind of deformation of the present invention, is considered as in the present invention
Within protection domain.
Claims (8)
- A kind of 1. blood vessel card punch, it is characterised in that：Including crop bar (1), coil (3), trombone slide (5), support tube (6), thrust Turn round (7) and back-moving spring (8)；The trombone slide (5) is slidedly assemblied in support tube (6), and circumferential spacing, the support tube (6) between support tube (6) Tail end is turned round (7) with thrust and fixed, and trombone slide (5) tail end is turned round (7) by back-moving spring (8) and thrust and assembled, the trombone slide (5) Front end be fixedly connected with crop bar (1), form the axial slip component of card punch；Coil (3) empty set is connected, the rotation on support tube (6) between axial slip component by worm drive Pipe (3) front end is fixed with conehead pipe (2), forms circumferential ring cutting component；Crop bar (1) telescopic slide is assemblied in conehead pipe (2), respectively by opposite on crop bar (1) and conehead pipe (2) The annular cutting edge of setting carries out the rotary-cut of vascular wall.
- 2. a kind of blood vessel card punch according to claim 1, the axial slip component also includes integrally solid with trombone slide (5) Surely the pull handle (4) connected, the pull handle (4) are sleeved on coil (3), and the outside of pull handle (4) is provided with determines for what finger passed through Position hole.
- 3. a kind of blood vessel card punch according to claim 2, the trombone slide (5) is provided with the trombone slide sliding block (5-1) of protrusion, Support tube guide groove (6-1) is axially arranged with the support tube (6), trombone slide sliding block (5-1) slip is inlaid in support tube and led In to groove (6-1), realize axially directed and circumferential spacing between trombone slide and support tube.
- 4. a kind of blood vessel card punch according to claim 3, pass through worm drive between the pull handle (4) and coil (3) Standard, the worm drive structure include being separately positioned on pull handle (4) inwall and coil (3) outer wall and being mutually spirally connected interior Screw thread and external screw thread.
- 5. a kind of blood vessel card punch according to claim 3, passed between the crop bar (1) and coil (3) by spiral Dynamic Standard, the worm drive structure are included in the transmission pin (9) being radially fixedly installed of the crop bar (1), Slide in the motion thread groove (3-2) set fitted to coil (3) inwall described transmission pin (9) end.
- 6. a kind of blood vessel card punch according to claim 5, the motion thread groove (3-2) is staggered for two in 180 ° to be set The helicla flute put.
- 7. a kind of blood vessel card punch according to claim 4 or 5, the crop bar (1) includes nose cone (1-1), connection Thin bar (1-2) and crop bar main body (1-3), the fixed front end for being inserted into trombone slide (5) of the crop bar main body (1-3), the circle Conehead (1-1) is arranged at the front end of crop bar main body (1-1) by section less than the connection thin bar (1-2) of crop bar main body, encloses Big end margin around the nose cone (1-1) is the cutting edge of crop bar, the crop bar main body (1-3) and nose cone (1-1) The inner tube telescopic slide of big end and conehead pipe (2) assemble, the inner tube front edge of the conehead pipe (2) is the sword of conehead pipe Mouthful.
- 8. a kind of blood vessel card punch according to claim 7, after the connection thin bar (1-2) withdraws conehead pipe (2) inner tube, The cavity volume (2-1) for accommodating excision vascular wall tissue is formed with conehead pipe inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726514.9A CN107374703A (en) | 2017-08-22 | 2017-08-22 | A kind of blood vessel card punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726514.9A CN107374703A (en) | 2017-08-22 | 2017-08-22 | A kind of blood vessel card punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107374703A true CN107374703A (en) | 2017-11-24 |
Family
ID=60354098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710726514.9A Pending CN107374703A (en) | 2017-08-22 | 2017-08-22 | A kind of blood vessel card punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107374703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110338940A (en) * | 2019-08-22 | 2019-10-18 | 中国医学科学院阜外医院 | A kind of Bentall operation manually blood vessel punch |
| CN111419469A (en) * | 2020-04-16 | 2020-07-17 | 中国医学科学院阜外医院 | Cutting device for aortic surgery |
| CN112842476A (en) * | 2020-12-31 | 2021-05-28 | 河南科技大学第一附属医院 | Aorta blood vessel puncher capable of stably punching |
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| US5129913A (en) * | 1990-10-04 | 1992-07-14 | Norbert Ruppert | Surgical punch apparatus |
| US5827316A (en) * | 1997-06-05 | 1998-10-27 | Atrion Medical Products, Inc. | Rotating aortic punch |
| CN202051793U (en) * | 2011-04-06 | 2011-11-30 | 马先翠 | Membrane rupturing device used in obstetrics |
| CN105055000A (en) * | 2015-09-11 | 2015-11-18 | 温州医科大学附属第二医院 | Membrane rupture device for obstetrical department |
| CN205459022U (en) * | 2016-02-29 | 2016-08-17 | 中国医科大学附属盛京医院 | But vacuum aspiration formula bipolar coagulation tweezers |
| CN205913370U (en) * | 2016-04-01 | 2017-02-01 | 曹旭峰 | Blood vessel closing device |
-
2017
- 2017-08-22 CN CN201710726514.9A patent/CN107374703A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129913A (en) * | 1990-10-04 | 1992-07-14 | Norbert Ruppert | Surgical punch apparatus |
| US5827316A (en) * | 1997-06-05 | 1998-10-27 | Atrion Medical Products, Inc. | Rotating aortic punch |
| CN202051793U (en) * | 2011-04-06 | 2011-11-30 | 马先翠 | Membrane rupturing device used in obstetrics |
| CN105055000A (en) * | 2015-09-11 | 2015-11-18 | 温州医科大学附属第二医院 | Membrane rupture device for obstetrical department |
| CN205459022U (en) * | 2016-02-29 | 2016-08-17 | 中国医科大学附属盛京医院 | But vacuum aspiration formula bipolar coagulation tweezers |
| CN205913370U (en) * | 2016-04-01 | 2017-02-01 | 曹旭峰 | Blood vessel closing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110338940A (en) * | 2019-08-22 | 2019-10-18 | 中国医学科学院阜外医院 | A kind of Bentall operation manually blood vessel punch |
| CN110338940B (en) * | 2019-08-22 | 2021-06-15 | 中国医学科学院阜外医院 | Bental is artificial blood vessel hole puncher for operation |
| CN111419469A (en) * | 2020-04-16 | 2020-07-17 | 中国医学科学院阜外医院 | Cutting device for aortic surgery |
| CN112842476A (en) * | 2020-12-31 | 2021-05-28 | 河南科技大学第一附属医院 | Aorta blood vessel puncher capable of stably punching |
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Application publication date: 20171124 |