CN114159130B - Auxiliary treatment device for intestinal esophagus operation - Google Patents
Auxiliary treatment device for intestinal esophagus operation Download PDFInfo
- Publication number
- CN114159130B CN114159130B CN202111505700.2A CN202111505700A CN114159130B CN 114159130 B CN114159130 B CN 114159130B CN 202111505700 A CN202111505700 A CN 202111505700A CN 114159130 B CN114159130 B CN 114159130B
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- head
- sheath tube
- treatment device
- traction rope
- cylinder
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- 230000000968 intestinal effect Effects 0.000 title abstract description 20
- 210000003238 esophagus Anatomy 0.000 title abstract description 14
- 238000001356 surgical procedure Methods 0.000 claims description 13
- 208000007536 Thrombosis Diseases 0.000 abstract description 15
- 206010028980 Neoplasm Diseases 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 7
- 208000035269 cancer or benign tumor Diseases 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 210000003811 finger Anatomy 0.000 description 3
- 210000000936 intestine Anatomy 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- A61B17/3205—Excision instruments
-
- 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
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
-
- 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
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical devices, in particular to an auxiliary treatment device for intestinal esophagus operation, which comprises: the head of the sheath tube is hinged with a plurality of petal bodies; the traction rope slides in the sheath tube, the head of the traction rope is provided with a cutter head, the cutter head protrudes out of the head of the sheath tube, and the traction rope is provided with a limiting structure; the hoop is provided with a plurality of elastic arms, the hoop is sleeved on the traction rope and matched with the limiting structure, and the end parts of the elastic arms are hinged to the petal body. The auxiliary treatment device provided by the invention can be used in the intestinal esophagus operation, and can realize the excision and cleaning of blood clots or neoplasms with larger volume on the intestinal esophagus wall.
Description
Technical Field
The invention relates to the technical field of medical devices, in particular to an auxiliary treatment device for intestinal esophagus operation.
Background
In the prior art, the treatment of blood clots, polyps, etc. within the canal structure is generally performed using a snare, which has advantages of safety, convenience, economy, etc., and can effectively shorten the operation time. However, the conventional snare is difficult to be applied to cleaning work of a large blood clot or neoplasm due to the limitation of the structure, i.e., the head of the traction rope is a loop structure with a certain shape.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problems to be solved by the invention are as follows: provided is an operation auxiliary treatment device capable of treating a blood clot or neoplasm with a large volume in an intestinal esophagus.
In order to solve the above-mentioned technical problem, the present invention provides an auxiliary treatment device for enteroesophageal surgery, comprising:
the head of the sheath tube is hinged with a plurality of petal bodies;
the traction rope slides in the sheath tube, the head of the traction rope is provided with a cutter head, the cutter head protrudes out of the head of the sheath tube, and the traction rope is provided with a limiting structure;
the hoop is provided with a plurality of elastic arms, the hoop is sleeved on the traction rope and matched with the limiting structure, and the end parts of the elastic arms are hinged to the petal body.
The invention has the beneficial effects that: the ring structure of the head of the traditional snare is replaced by the cutter head, and the cutter head can be driven to rotate by rotating the traction rope, so that blood clots or neoplasms with larger volume are cut, the treatment efficiency of the intestinal esophagus operation is effectively improved, and the operation time is shortened; simultaneously, arrange a plurality of petals body at the head of sheath to allow when haulage rope outstanding the sheath, the petal body is expanded and exposes the tool bit, namely supports the tool bit through the petal body, in order to avoid the tool bit to be excessively close to the intestinal canal wall in the cutting process and lead to the problem of intestinal canal wall accidental injury to take place, and allow when the haulage rope shrink into the sheath, the tool bit wraps up in the petal body completely, in order to avoid the head of auxiliary processing device in sending into patient's intestines esophagus, the tool bit contacts fish tail intestines food pipe wall with intestines esophagus wall.
Drawings
FIG. 1 is a schematic view showing the structure of an auxiliary processing apparatus according to the present invention in a specific embodiment;
FIG. 2 is a schematic view showing the structure of the head of the auxiliary treating apparatus according to the present invention in the embodiment;
fig. 3 is a front cross-sectional view of a handle of an auxiliary processing device according to an embodiment of the present invention.
Description of the reference numerals: 1. a petal body; 2. a sheath; 3. a traction rope; 4. a hand-held part; 41. an adjusting member; 411. an adjusting ring; 42. a body; 421. a body pull ring; 5. a cutter head; 6. a hoop; 7. an elastic arm; 8. a limit structure; 9. a motor; 10. a first cylinder; 11. and a second cylinder.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, an auxiliary treatment device for enteroesophageal surgery has:
the head of the sheath tube is hinged with a plurality of petal bodies;
the traction rope slides in the sheath tube, the head of the traction rope is provided with a cutter head, the cutter head protrudes out of the head of the sheath tube, and the traction rope is provided with a limiting structure;
the hoop is provided with a plurality of elastic arms, the hoop is sleeved on the traction rope and matched with the limiting structure, and the end parts of the elastic arms are hinged to the petal body.
The head of the sheath tube 2 is hinged with a plurality of petal bodies 1, the petal bodies 1 are arranged at intervals or partially overlapped along the circumferential direction of the sheath tube 2, the actions of the petal bodies 1 are synchronous, namely, the petal bodies 1 are unfolded or closed at the same time, and when the petal bodies 1 are closed at the same time, the petal bodies 1 can form an accommodating space for accommodating the cutter head 5. The receiving space can be completely closed or can be in a partially closed state, but at least the cutting position of the cutter head 5, i.e. the cutting edge, can be spaced from the intestinal esophageal wall by the petal body 1 when in the receiving space. The shape of the petal body 1 can be a petal-like structure. The petal body 1 is hinged at the head of the sheath tube 2, the hinge can be connected through a rotating shaft, or the petal body 1 and the sheath tube 2 are integrally formed or bonded together, but a region allowing the lower end of the petal body 1 to be folded exists between the petal body and the sheath tube 2. Preferably, the outer surface of the tips of the petals 1 has a certain roughness to allow the tips thereof to stably abut against the intestinal canal wall when the petals 1 are unfolded. When the petals 1 are unfolded, a certain gap exists between adjacent petals 1 to allow an operator to clamp at least part of a blood clot or neoplasm through the gap.
The hauling cable 3 can freely slide and freely rotate in the sheath tube 2, and the hauling cable 3 is formed by mutually winding a plurality of flexible stranded wires. The head of the hauling cable 3 is connected with the cutter head 5 to allow the movement of the cutter head 5 to be controlled by sliding the hauling cable 3 in the sheath 2, and the hauling cable 3 rotates in the sheath 2 to drive the cutter head 5 to rotate. In one embodiment, the limit structure 8 is arranged on the hauling rope 3 to allow the limit structure 8 to cooperate with the hoop 6 to control the deployment or closure of the petals 1. Specifically, the band 6 has a plurality of elastic arms 7, and the elastic arms 7 have elastic and preset memory shapes, so that when the pulling rope 3 is retracted into the sheath 2, the petals 1 are driven to rotate inwards to be closed by the elastic arms 7, and when the pulling rope 3 protrudes out of the sheath 2, the petals 1 are driven to rotate outwards by the elastic arms 7 to be unfolded. Wherein the haulage rope 3 is retracted into the sheath 2, it should be understood that the end of the haulage rope 3 connected with the cutter head 5 is completely moved into the sheath 2 or moved to a preset nearest position near the head of the sheath 2; the hauling cable 3 protrudes from the sheath 2, it being understood that the end of the hauling cable 3 connected to the cutter head 5 is moved out of the sheath 2 to a predetermined furthest position away from the head of the sheath 2.
Further, the auxiliary processing device further comprises a handheld part 4, the handheld part 4 comprises a body 42 and an adjusting piece 41, the adjusting piece 41 is sleeved on the body 42, and the tail part of the haulage rope 3 is connected with the adjusting piece 41.
Wherein the adjusting member 41 is sleeved on the body 42 to define a moving direction of the adjusting member 41 through the body 42. In use, the head of the hauling cable 3 is controlled to move by the adjustment member 41 being movable on the body 42. In one embodiment, the rotation of the traction rope 3 can also be controlled by rotating the adjusting member 41 on the body 42.
Preferably, the auxiliary processing device further comprises a motor 9, and the traction rope 3 is in transmission connection with the motor 9. The motor 9 is additionally arranged at the tail part of the traction rope 3, so that an operator can control the rotation of the cutter head 5 conveniently. Preferably, a switch is also included, arranged on the surface of the body 42 or of the regulating member 41, said switch being electrically connected to the motor 9.
Further, the sheath tube 2 is internally provided with a plurality of positioning rings which extend along the length direction of the sheath tube 2 and are arranged at intervals, the positioning rings are coaxially arranged with the sheath tube 2, and the haulage rope 3 is arranged in the positioning rings and is in clearance fit with the positioning rings. The positioning ring is arranged in the sheath tube 2 to keep the traction rope 3 and the sheath tube 2 approximately in an axial alignment state through the positioning ring, so that the transmission efficiency of the motor 9 and the traction rope 3 is improved. Preferably, the positioning ring and the sheath tube 2 are integrally injection molded.
Further, the auxiliary treatment device further comprises a first cylinder 10 and a second cylinder 11, the first cylinder 10 is sleeved outside the second cylinder 11, the head of the second cylinder 11 is provided with a through hole coaxial with the sheath tube 2, the haulage rope 3 is arranged in the through hole and connected with the haulage rope 3, and the first cylinder 10 is arranged at the head of the sheath tube 2 and positioned inside the sheath tube 2. In order to avoid the problem that the operator has difficulty in controlling the position of the cutter head 5 due to the weight of the cutter head 5 after the traction rope 3 protrudes from the sheath tube 2, the first cylinder 10 and the second cylinder 11 are arranged at the head of the sheath tube 2, wherein the second cylinder 11 is sleeved in the first cylinder 10, that is, the second cylinder 11 and the sheath tube are formed into a sleeve-like structure, so that the traction rope 3 is kept to be centered with the shaft of the sheath tube 2 when the second cylinder 11 can synchronously move with the traction rope 3 in the protruding state. Preferably, a limiting member, specifically a limiting ring or other structure with a limiting function, is disposed between the first cylinder 10 and the second cylinder 11, so as to avoid the first cylinder 10 and the second cylinder 11 from being separated from each other. Meanwhile, the first cylinder body 10 is fixed in the sheath tube 2 in an interference fit or excessive fit mode, or is directly and integrally injection molded with the sheath tube 2.
Further, a body pull ring 421 is disposed at an end of the body 42 away from the traction rope 3.
Further, the adjusting member 41 has two adjusting rings 411 disposed radially opposite to each other along the adjusting member 41.
By providing the body tab 421 at a section of the body 42 and two adjustment rings 411 on the adjustment member 41, the operator can conveniently control the position of the traction rope 3.
Preferably, the limiting structure 8 includes a first ring body and a second ring body, the first ring body and the second ring body are disposed at intervals along the length direction of the traction rope 3, and the hoop 6 is disposed between the first ring body and the second ring body. By providing the traction rope 3 with a first ring body and a second ring body, the moving distance of the hoop 6 is limited by the first ring body and the second ring body, and the first ring body is used for connecting the traction rope. The second ring body and the hoop 6 are matched with each other to realize the opening and closing control of the petal body 1.
The auxiliary treatment device provided by the invention can be used for cleaning blood clots or neoplasms with larger volume in the intestinal esophagus operation.
Example 1
Referring to fig. 1 to 3, an auxiliary treatment device for enteroesophageal surgery has:
a plurality of petals 1 are hinged on the head of the sheath tube 2;
the traction rope 3 slides in the sheath tube 2, the head of the traction rope 3 is provided with a cutter head 5, the cutter head 5 protrudes out of the head of the sheath tube 2, and the traction rope 3 is provided with a limiting structure 8;
the hoop 6 is provided with a plurality of elastic arms 7, the hoop 6 is sleeved on the traction rope 3 and is matched with the limiting structure 8, and the end parts of the elastic arms 7 are hinged to the petal body 1.
The auxiliary processing device further comprises a handheld part 4, the handheld part 4 comprises a body 42 and an adjusting piece 41, the adjusting piece 41 is sleeved on the body 42, and the tail part of the haulage rope 3 is connected with the adjusting piece 41;
the auxiliary processing device also comprises a motor 9, and the haulage rope 3 is in transmission connection with the motor 9.
Example 2
Referring to fig. 1 to 3, the difference from embodiment 1 is that: the sheath tube 2 is internally provided with a plurality of positioning rings which extend along the length direction of the sheath tube 2 and are arranged at intervals, the positioning rings are coaxially arranged with the sheath tube 2, and the haulage rope 3 is arranged in the positioning rings and is in clearance fit with the positioning rings.
Example 3
Referring to fig. 1 to 3, the difference from embodiment 1 or 2 is that: the auxiliary treatment device further comprises a first cylinder body 10 and a second cylinder body 11, the first cylinder body 10 is sleeved outside the second cylinder body 11, the head of the second cylinder body 11 is provided with a penetrating hole coaxial with the sheath tube 2, the haulage rope 3 is arranged in the penetrating hole and connected with the haulage rope 3, and the first cylinder body 10 is arranged at the head of the sheath tube 2 and positioned inside the sheath tube 2.
Example 4
Referring to fig. 1 to 3, the difference from any of embodiments 1 to 3 is that: a body pull ring 421 is arranged at one end of the body 42 far away from the hauling rope 3; the adjusting member 41 has two adjusting rings 411 disposed opposite to each other in the radial direction of the adjusting member 41.
Example 5
Referring to fig. 1 to 3, the difference from embodiment 1 is that: the limiting structure 8 comprises a first ring body and a second ring body, the first ring body and the second ring body are arranged at intervals along the length direction of the traction rope 3, and the hoop 6 is arranged between the first ring body and the second ring body.
Specifically, referring to fig. 1 to 3, the operator uses his thumb to insert the body pull ring 421, and the index finger and the middle finger insert the two adjusting rings 411 respectively, and the rest of the fingers and the palm rest on the body 42, so as to realize the holding of the hand-holding portion 4 and control the position of the traction rope 3. More specifically, the head of the auxiliary processing device comprises a petal body 1, the head of the sheath tube 2, the cutter head and the head of the hauling rope 3 are implanted into the intestinal canal or the esophagus together, when reaching the observed position of blood clots or neoplasms, an operator downwards adjusts the adjusting piece 41 to drive the head of the hauling rope 3 to protrude out of the head of the sheath tube 2, at the moment, the hand limiting structure 8 and the hoop 6 interact with each other, the petal body 1 is unfolded and abutted against the intestinal canal wall or the food canal wall simultaneously, the petal body 1 is slightly retracted to clamp the blood clots or neoplasms through the gaps between the adjacent petal bodies 1, so that at least part of the blood clots or neoplasms is wrapped in the accommodating space formed by the petal body 1, then the motor 9 is started, the motor 9 drives the cutter head 5 to rotate and cut the blood clots or neoplasms, and the cut blood clots or the neoplasms fall on the petal body 1. When the cutting is completed, the reverse movement adjusting piece 41 drives the hauling rope 3 to retract into the sheath tube 2, the petal body 1 is completely closed to wrap the cutter head 5, and simultaneously, the blood clot or neoplasm after the partial cutting is reserved in the accommodating space formed by the petal body 1 and is moved out of the intestinal tract or esophagus of the patient along with the auxiliary processing device, so that the cutting and cleaning operation of the blood clot or neoplasm is completed.
In summary, the invention provides an auxiliary treatment device for enteroesophageal surgery, which replaces the ring structure of the head of the traditional snare with the cutter head 5, and can drive the cutter head 5 to rotate by rotating the traction rope 3, so that the blood clot or neoplasm with larger volume is cut, the treatment efficiency of enteroesophageal surgery is effectively improved, and the surgery time is shortened; meanwhile, a plurality of petals 1 are arranged on the head of the sheath 2 to allow the petals 1 to be unfolded to expose the cutter head 5 when the hauling cable 3 protrudes out of the sheath 2, i.e. the cutter head 5 is supported by the petals 1 to avoid the problem that the cutter head 5 is excessively close to the intestinal wall during cutting to cause accidental injury of the intestinal wall, and to allow the cutter head 5 to be completely wrapped in the petals 1 when the hauling cable 3 is retracted into the sheath 2 to avoid the head of the auxiliary treatment device in the intestinal esophagus of a patient, and the cutter head 5 contacts with the intestinal wall to scratch the intestinal wall.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (7)
1. An auxiliary treatment device for use in an enteroesophageal surgery, comprising:
the head of the sheath tube is hinged with a plurality of petal bodies;
the traction rope slides in the sheath tube, the head of the traction rope is provided with a cutter head, the cutter head protrudes out of the head of the sheath tube, and the traction rope is provided with a limiting structure;
the hoop is provided with a plurality of elastic arms, the hoop is sleeved on the traction rope and matched with the limiting structure, and the end parts of the elastic arms are hinged to the petal body;
the limiting structure comprises a first ring body and a second ring body, the first ring body and the second ring body are arranged at intervals along the length direction of the traction rope, and the hoop is arranged between the first ring body and the second ring body.
2. The auxiliary treatment device for enteroesophageal surgery of claim 1, further comprising a handle portion comprising a body and an adjustment member, wherein the adjustment member is sleeved on the body, and wherein the tail of the pull cord is connected to the adjustment member.
3. The auxiliary treatment device for enteroesophageal surgery of claim 2, further comprising a motor, wherein the pull cord is drivingly connected to the motor.
4. The auxiliary treatment device for enteroesophageal surgery according to claim 1, wherein the sheath tube is provided with a plurality of positioning rings extending along the length direction of the sheath tube and arranged at intervals, the positioning rings are arranged coaxially with the sheath tube, and the haulage rope is arranged in the positioning rings and is in clearance fit with the positioning rings.
5. The auxiliary treatment device for enteroesophageal surgery according to claim 1, further comprising a first cylinder and a second cylinder, wherein the first cylinder is sleeved outside the second cylinder, the head of the second cylinder is provided with a through hole coaxial with the sheath, the haulage rope is arranged in the through hole and connected with the second cylinder, and the first cylinder is arranged at the head of the sheath and positioned inside the sheath.
6. The auxiliary treatment device for enteroesophageal surgery according to claim 2, wherein the end of the body remote from the pull cord is provided with a body pull ring.
7. An auxiliary treatment device for enteroesophageal surgery according to claim 2, wherein the adjustment member has two adjustment rings disposed radially opposite each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111505700.2A CN114159130B (en) | 2021-12-10 | 2021-12-10 | Auxiliary treatment device for intestinal esophagus operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111505700.2A CN114159130B (en) | 2021-12-10 | 2021-12-10 | Auxiliary treatment device for intestinal esophagus operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114159130A CN114159130A (en) | 2022-03-11 |
| CN114159130B true CN114159130B (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111505700.2A Active CN114159130B (en) | 2021-12-10 | 2021-12-10 | Auxiliary treatment device for intestinal esophagus operation |
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| Country | Link |
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| CN (1) | CN114159130B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807313A1 (en) * | 2000-04-07 | 2001-10-12 | Materiel Orthopedique En Abreg | Device for maintaining the soft tissues during surgery of the vertebral column comprises valves acting on the incision edges mounted on a ring made of two half-rings connected by pins |
| WO2020139979A1 (en) * | 2018-12-27 | 2020-07-02 | C. R. Bard, Inc. | Extraction basket |
| CN213217458U (en) * | 2020-06-09 | 2021-05-18 | 大连医科大学附属第一医院 | Cutting device and medical equipment under scope |
| CN112890930A (en) * | 2020-09-27 | 2021-06-04 | 郑州大学第一附属医院 | Trace ovarian tissue biopsy device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015048795A2 (en) * | 2013-09-30 | 2015-04-02 | Biocardia, Inc. | Radial and trans-endocardial delivery catheter |
-
2021
- 2021-12-10 CN CN202111505700.2A patent/CN114159130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2807313A1 (en) * | 2000-04-07 | 2001-10-12 | Materiel Orthopedique En Abreg | Device for maintaining the soft tissues during surgery of the vertebral column comprises valves acting on the incision edges mounted on a ring made of two half-rings connected by pins |
| WO2020139979A1 (en) * | 2018-12-27 | 2020-07-02 | C. R. Bard, Inc. | Extraction basket |
| CN213217458U (en) * | 2020-06-09 | 2021-05-18 | 大连医科大学附属第一医院 | Cutting device and medical equipment under scope |
| CN112890930A (en) * | 2020-09-27 | 2021-06-04 | 郑州大学第一附属医院 | Trace ovarian tissue biopsy device |
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| Publication number | Publication date |
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| CN114159130A (en) | 2022-03-11 |
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