CN107961012B - Metal detection positioning device for laparoscopic surgery - Google Patents
Metal detection positioning device for laparoscopic surgery Download PDFInfo
- Publication number
- CN107961012B CN107961012B CN201711372228.3A CN201711372228A CN107961012B CN 107961012 B CN107961012 B CN 107961012B CN 201711372228 A CN201711372228 A CN 201711372228A CN 107961012 B CN107961012 B CN 107961012B
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- sleeve
- detection
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- pull rod
- length direction
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- 238000001514 detection method Methods 0.000 title claims abstract description 101
- 239000002184 metal Substances 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 26
- 238000002357 laparoscopic surgery Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 20
- 210000000683 abdominal cavity Anatomy 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000003815 abdominal wall Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008855 peristalsis Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a metal detection positioning device for laparoscopic surgery, which is characterized by comprising a search disc, a detector host, a connecting wire and a detection sleeve, wherein the detection sleeve is made of medical hard plastic and is provided with a detection channel for the search disc and the connecting wire to penetrate through the detection sleeve; the search disk comprises an inner ring and an outer ring which are coaxially arranged, coils which are wound by leads are arranged in the inner ring and the outer ring, the coils are electrically connected with connecting wires, the inner ring and the outer ring are made of medical flexible materials, and the search disk can be embedded into the detection channel after being subjected to radial pressure; the detection channel is internally connected with a push-pull rod in a sliding manner along the length direction of the detection channel, one end of the push-pull rod in the length direction is connected with the search disc, and the other end of the push-pull rod penetrates through the detection channel and extends outwards from the end part of the detection sleeve. The device can detect metal under the direct vision of the laparoscope, and has the functions of accurate positioning and shortened operation time.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a metal detection positioning device for laparoscopic surgery.
Background
At present, if metal materials are lost in laparoscopic surgery, such as a suture needle and an ultrasonic cutter head, or a patient is left in the abdominal cavity after being stabbed by metal foreign matters, X-ray positioning is generally adopted in the surgery, but the position of organs in the abdomen is complex, the plane positioning often cannot meet the requirement, especially the metal foreign matters can change the position in a human body along with intestinal peristalsis, so that the X-ray positioning also has the problem of inaccuracy, great difficulty is caused to the surgery, no better searching method exists at present, and for this reason, many manufacturers and consciousness people develop and develop, but no ideal product exists yet.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a metal detection positioning device for laparoscopic surgery, which can detect metal under the direct view of a laparoscope and has the functions of accurate positioning and shortened surgery time.
In order to achieve the above purpose, the present invention provides the following technical solutions: the metal detection positioning device for the laparoscopic surgery comprises a search disc, a detector host machine, a connecting wire connected between the search disc and the detector host machine, and a detection sleeve pipe used for extending into an abdominal cavity, wherein the detection sleeve pipe is made of medical hard plastic, and the detection sleeve pipe is of a hollow pipe structure and comprises a detection channel used for allowing the search disc and the connecting wire to penetrate through the detection sleeve pipe; the search disk comprises an inner ring and an outer ring which are coaxially arranged, coils which are wound by leads are arranged in the inner ring and the outer ring, the coils are electrically connected with a connecting wire, the inner ring and the outer ring are made of medical flexible materials, and the search disk can be embedded into a detection channel after being subjected to radial pressure; the detection channel is internally connected with a push-pull rod for pushing and pulling the search disc in a sliding manner along the length direction of the detection channel, one end of the push-pull rod in the length direction is connected with the search disc, the other end of the push-pull rod penetrates through the detection channel and extends outwards towards the end part of the detection sleeve, and the push-pull rod can be retracted into the detection channel or pushed out from the end part of the detection sleeve by driving the search disc in the sliding process of the push-pull rod along the length direction of the detection sleeve.
The invention is further provided with: the detection sleeve comprises a first sleeve and a second sleeve inserted in the first sleeve, the first sleeve and the second sleeve are of hollow tube structure, a connecting tube for being in threaded connection with the second sleeve is coaxially arranged in the first sleeve, a gap for the second sleeve to be inserted is reserved between the connecting tube and the first sleeve, an internal thread is arranged on the inner wall of the second sleeve, an external thread is arranged on the outer wall of the connecting tube, and the second sleeve can be screwed into or screwed out of the first sleeve in the threaded connection process of the second sleeve and the connecting tube.
The invention is further provided with: the end portion spiro union of connecting pipe has the spacing ring that is used for restricting the second sleeve pipe and breaks away from in the clearance, be provided with the ring channel that is used for dodging the spacing ring on the inside wall of second sleeve pipe, the second sleeve pipe slides along its length direction in the ring channel along the length direction spiral in-process spacing ring of connecting pipe, the external diameter size of spacing ring and the internal diameter size looks adaptation of ring channel.
The invention is further provided with: the length dimension of the second sleeve is no greater than the depth dimension of the gap.
The invention is further provided with: one end of the push-pull rod, which is far away from the searching disc, is hinged with the end part of the operating rod, the middle part of the operating rod is hinged with the detection sleeve, and the operating rod can drive the searching disc to be retracted into the detection channel or pushed out from the end part of the detection sleeve through the push-pull rod in the rotation process of the operating rod around the hinged part of the operating rod and the detection sleeve.
The invention is further provided with: the push-pull rod is hinged with the operation rod through a hinge shaft in a penetrating manner, a sliding groove used for enabling the hinge shaft to slide along the length direction of the push-pull rod is formed in the push-pull rod, the sliding groove penetrates through the push-pull rod in the radial direction, and the length direction of the sliding groove is along the length direction of the push-pull rod; the operation rod is rotationally connected with the hinge shaft, the middle part of the hinge shaft is vertically provided with a fastening screw, the fastening screw and the hinge shaft are in a T-shaped structure, a fastening sliding groove for the fastening screw to penetrate is formed in the push-pull rod, the fastening screw penetrates to one end outside the fastening sliding groove and is in threaded connection with a fastening nut, the fastening sliding groove penetrates to the sliding groove, the length direction of the fastening sliding groove is consistent with the length direction of the push-pull rod, and the hinge shaft is fixedly connected with the push-pull rod when the fastening nut on the fastening screw is abutted to the outer side wall of the push-pull rod.
In summary, the invention has the following beneficial effects: in the laparoscopic surgery process, the detection sleeve can be placed into the abdominal cavity through the trocar, then the search disc contracted in the detection channel is pushed out of the end part of the detection sleeve through the push-pull rod to search for metal, and the laparoscopic surgery can be matched with the laparoscope, so that the metal can be detected under direct vision, and after the search is finished, the search disc can be contracted in the detection channel through the push-pull rod, so that the detection sleeve is conveniently taken out. The device can be matched with a laparoscope to detect and position residual metal in the abdominal cavity in the use process, is simple and convenient to operate, safe and accurate, and can shorten the operation time, so that the device is favorable for being suitable for various conditions.
Drawings
FIG. 1 is a schematic view of a metal detection positioning device for laparoscopic surgery;
fig. 2 is a schematic view of the structure at the hinge shaft.
Reference numerals: 1. a search disk; 11. an inner ring; 12. an outer ring; 2. a connecting wire; 3. detecting the sleeve; 31. a detection channel; 32. a first sleeve; 33. a second sleeve; 331. an annular groove; 34. a connecting pipe; 341. a limiting ring; 35. a gap; 4. a push-pull rod; 41. a slip groove; 42. fastening the sliding groove; 5. an operation lever; 6. a hinge shaft; 61. a fastening screw; 62. and fastening the screw cap.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Referring to fig. 1 and 2, a metal detection positioning device for laparoscopic surgery comprises a search disc 1, a detector host and a connecting wire 2 connected between the search disc 1 and the detector host, wherein the search disc 1 and the detector host can refer to the prior art, such as the working principle of a very low frequency metal detector, according to the specificity of the working principle, the search disc 1 comprises an inner ring 11 and an outer ring 12 which are coaxially arranged, coils wound by wires are arranged in the inner ring 11 and the outer ring 12, one end of the coil is electrically connected with one end of the connecting wire 2, the other end of the connecting wire 2 is electrically connected with the detector host, and the detector host is used as a controller for sounding whether metal exists or not.
The metal detection positioning device further comprises a detection sleeve 3 which is used for extending into the abdominal cavity, the detection sleeve 3 is made of medical hard plastic, such as hard PVC, the detection sleeve 3 has certain hardness and can be extended into the abdominal cavity, the operation is convenient, the detection sleeve 3 is of a hollow tube structure and comprises a detection channel 31 which is used for allowing the search disc 1 and the connecting wire 2 to penetrate through the detection sleeve 3, the inner ring 11 and the outer ring 12 are made of medical flexible materials, such as soft silica gel, the metal detection positioning device is convenient to compress under stress, when the search disc 1 is subjected to radial pressure, the metal detection positioning device can be embedded into the detection channel 31, a push-pull rod 4 for pushing and pulling the search disc 1 is connected in a sliding manner along the length direction of the detection channel 31, one end of the push-pull rod 4 in the length direction is connected with the search disc 1, the other end of the push-pull rod 4 penetrates through the detection channel 31 and extends out of the end of the detection sleeve 3, and the push-pull rod 4 can be retracted into the detection channel 31 or pushed out of the end of the detection sleeve 3 through driving the search disc 1 in the sliding process along the length direction of the detection sleeve 3.
The detection sleeve 3 can be placed into the abdominal cavity through the trocar in the laparoscopic surgery process, then the search disc 1 contracted in the detection channel 31 is pushed out of the end part of the detection sleeve 3 through the push-pull rod 4 to search for metals, and the laparoscopic surgery can be matched with the laparoscope, so that the metal can be detected under direct vision, after search, the search disc 1 can be contracted in the detection channel 31 through the push-pull rod 4, and then the detection sleeve 3 can be conveniently taken out. The device can be matched with a laparoscope to detect and position residual metal in the abdominal cavity in the use process, is simple and convenient to operate, safe and accurate, and can shorten the operation time, so that the device is favorable for being suitable for various conditions.
And each accessory of the device is of a separated design, so that the device is convenient to replace or be used as a disposable part, and is favorable for solving the aseptic requirement in operation.
The detection sleeve 3 comprises a first sleeve 32 and a second sleeve 33 inserted in the first sleeve 32, the first sleeve 32 and the second sleeve 33 are both in hollow tube structure, a connecting tube 34 for being in threaded connection with the second sleeve 33 is coaxially arranged in the first sleeve 32, a gap 35 for inserting the second sleeve 33 is reserved between the connecting tube 34 and the first sleeve 32, internal threads are arranged on the inner wall of the second sleeve 33, external threads are arranged on the outer wall of the connecting tube 34, and the second sleeve 33 can be screwed into or out of the first sleeve 32 in the threaded connection process of the second sleeve 33 and the connecting tube 34. The length of the detection sleeve 3 can be increased or decreased in the process of screwing the second sleeve 33 and the connecting pipe 34, so that the detection sleeve 3 is convenient for searching abdominal cavities with different depths, and the surgical operation of medical staff is facilitated. And the second sleeve 33 depends on the internal thread on the inner wall of the second sleeve 33 and the external thread on the outer wall of the connecting pipe 34 in the process of rotating in the first sleeve 32, so that no thread is exposed, sharp edges of the thread are prevented from scratching the abdominal wall, and the safety of the detection sleeve 3 in the operation is improved.
The end portion of the connecting pipe 34 is in threaded connection with a limiting ring 341 used for limiting the second sleeve 33 to be separated from the gap 35, an annular groove 331 used for avoiding the limiting ring 341 is formed in the inner side wall of the second sleeve 33, the limiting ring 341 slides in the annular groove 331 along the length direction in the second sleeve 33 in the process of screwing along the length direction of the connecting pipe 34, and the outer diameter size of the limiting ring 341 is matched with the inner diameter size of the annular groove 331. The limiting ring 341 is used for preventing the second cannula 33 from being separated from the gap 35, so that the first cannula 32 and the second cannula 33 are separated in the operation, and the use stability of the detection cannula 3 is affected; and spacing ring 341 and the inside wall butt of ring channel 331, cooperation second sleeve pipe 33 and the threaded connection of connecting pipe 34 are favorable to improving the firm in connection degree of second sleeve pipe 33 and connecting pipe 34, avoid second sleeve pipe 33 to swing on connecting pipe 34 circumference and influence the use stability degree of detection sleeve pipe 3 in the art.
And the length dimension of the second sleeve 33 is not greater than the depth dimension of the gap 35, and the structure can enable the second sleeve 33 to be submerged into the gap 35 when being screwed into the gap 35 on the connecting pipe 34, so that the end part of the connecting pipe 34 can be exposed, the limit ring 341 is conveniently screwed in from the end part of the connecting pipe 34, the assembly difficulty of the detection sleeve 3 is reduced, and the disassembly and assembly efficiency is improved.
One end of the push-pull rod 4 far away from the search disc 1 is hinged with the end part of the operating rod 5, the middle part of the operating rod 5 is hinged with the detection sleeve 3, and the operating rod 5 can drive the search disc 1 to be retracted into the detection channel 31 or pushed out from the end part of the detection sleeve 3 through the push-pull rod 4 in the process of rotating around the hinged part with the detection sleeve 3. The hinged part of the detection sleeve 3 and the operation rod 5 is provided with an operation handle in a bending way, so that the simplicity degree of controlling the push-pull rod 4 can be improved when the operation handle is matched with the operation rod 5, and the detection sleeve 3 is also convenient for medical staff to operate.
The push-pull rod 4 is hinged with the operation rod 5 through the hinging shaft 6, a sliding groove 41 for the hinging shaft 6 to slide along the length direction of the push-pull rod 4 is arranged on the push-pull rod 4, the sliding groove 41 penetrates through the push-pull rod 4 in the radial direction, and the length direction of the sliding groove 41 is arranged along the length direction of the push-pull rod 4; the length dimension of the detection sleeve 3 can be increased or decreased in the process of screwing the second sleeve 33 and the connecting pipe 34, at this time, the hinge position of the push-pull rod 4 and the operating rod 5 needs to be changed along with the sliding of the second sleeve 33 in the gap 35, so that the sliding of the hinge shaft 6 on the push-pull rod 4 can be realized by setting the sliding groove 41, and the effective control of the push-pull rod 4 can be realized by matching with the operating rod 5.
The operation rod 5 is rotationally connected with the hinge shaft 6, the middle part of the hinge shaft 6 is vertically provided with a fastening screw 61, the fastening screw 61 and the hinge shaft 6 are in a T-shaped structure, the push-pull rod 4 is provided with a fastening chute 42 for the fastening screw 61 to penetrate, one end of the fastening screw 61 penetrating out of the fastening chute 42 is in threaded connection with a fastening nut 62, the fastening chute 42 penetrates to the sliding chute 41, the length direction of the fastening chute 42 is consistent with the length direction of the push-pull rod 4, and the hinge shaft 6 is fixedly connected with the push-pull rod 4 when the fastening nut 62 in threaded connection with the fastening screw 61 is abutted to the outer side wall of the push-pull rod 4. The connection state of the hinge shaft 6 and the push-pull rod 4 can be controlled by screwing the fastening nut 62 on the fastening screw 61, when the length of the detection sleeve 3 needs to be adjusted, the fastening nut 62 is loosened, then the second sleeve 33 is rotated until the length of the detection sleeve 3 conforming to the detection depth is adjusted, the hinge shaft 6 slides along the length direction of the sliding groove 41 in the rotating process of the second sleeve 33, meanwhile, the fastening screw 61 also slides along the length direction of the fastening sliding groove 42, and finally the fastening nut 62 is screwed down, so that the metal detection in the abdominal cavity can be performed.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (1)
1. The utility model provides a metal detection positioner for laparoscopic surgery, is including seeking dish (1) and detector host computer to and connect connecting wire (2) between seeking dish (1) and detector host computer, characterized by: the metal detection positioning device further comprises a detection sleeve (3) which is used for extending into the abdominal cavity, the detection sleeve (3) is made of medical hard plastic, and the detection sleeve (3) is of a hollow tube structure and comprises a detection channel (31) which is used for allowing the search disc (1) and the connecting wire (2) to penetrate through the detection sleeve (3);
the search disc (1) comprises an inner ring (11) and an outer ring (12) which are coaxially arranged, coils which are wound by leads are arranged in the inner ring (11) and the outer ring (12), the coils are electrically connected with the connecting wire (2), the inner ring (11) and the outer ring (12) are made of medical flexible materials, and the search disc (1) can be embedded into the detection channel (31) after being subjected to radial pressure;
the detection device is characterized in that a push-pull rod (4) for pushing and pulling the search disc (1) is connected in the detection channel (31) in a sliding manner along the length direction of the detection channel, one end of the push-pull rod (4) in the length direction is connected with the search disc (1), the other end of the push-pull rod penetrates through the detection channel (31) and extends outwards from the end part of the detection sleeve (3), and the push-pull rod (4) can be retracted into the detection channel (31) or pushed out from the end part of the detection sleeve (3) by driving the search disc (1) in the sliding manner along the length direction of the detection sleeve (3);
the detection sleeve (3) comprises a first sleeve (32) and a second sleeve (33) inserted into the first sleeve (32), the first sleeve (32) and the second sleeve (33) are both in a hollow pipe structure, a connecting pipe (34) for being in threaded connection with the second sleeve (33) is coaxially arranged in the first sleeve (32), a gap (35) for the second sleeve (33) to be inserted is reserved between the connecting pipe (34) and the first sleeve (32), internal threads are formed on the inner wall of the second sleeve (33), external threads are formed on the outer wall of the connecting pipe (34), and the second sleeve (33) can be screwed into or screwed out of the first sleeve (32) in the threaded connection process of the second sleeve (33) and the connecting pipe (34);
one end of the push-pull rod (4) far away from the search disc (1) is hinged with the end part of the operating rod (5), the middle part of the operating rod (5) is hinged with the detection sleeve (3), and the operating rod (5) can drive the search disc (1) to be received in the detection channel (31) or pushed out from the end part of the detection sleeve (3) through the push-pull rod (4) in the process of rotating around the hinged part with the detection sleeve (3);
the push-pull rod (4) is hinged with the operation rod (5) through a hinging shaft (6) in a penetrating manner, a sliding groove (41) used for enabling the hinging shaft (6) to slide along the length direction of the push-pull rod (4) is formed in the push-pull rod (4), the sliding groove (41) penetrates through the push-pull rod (4) in the radial direction, and the length direction of the sliding groove (41) is arranged along the length direction of the push-pull rod (4);
the operation rod (5) is rotationally connected with the hinge shaft (6), a fastening screw (61) is vertically arranged in the middle of the hinge shaft (6), the fastening screw (61) and the hinge shaft (6) are in a T-shaped structure, a fastening chute (42) used for the fastening screw (61) to penetrate is arranged on the push-pull rod (4), a fastening nut (62) is screwed at one end, penetrating the fastening screw (61) out of the fastening chute (42), of the fastening chute (42) penetrates to the sliding groove (41), the length direction of the fastening chute (42) is consistent with the length direction of the push-pull rod (4), and the hinge shaft (6) is fixedly connected with the push-pull rod (4) when a fastening nut (62) screwed on the fastening screw (61) is abutted on the outer side wall of the push-pull rod (4);
the end portion of the connecting pipe (34) is in threaded connection with a limiting ring (341) used for limiting the second sleeve (33) to be separated from the gap (35), an annular groove (331) used for avoiding the limiting ring (341) is formed in the inner side wall of the second sleeve (33), the limiting ring (341) slides in the annular groove (331) along the length direction in the spiral process of the connecting pipe (34) along the length direction of the connecting pipe, the outer diameter size of the limiting ring (341) is matched with the inner diameter size of the annular groove (331), the limiting ring (341) is in abutting connection with the inner side wall of the annular groove (331), and the limiting ring (341) is matched with the threaded connection of the second sleeve (33) and the connecting pipe (34);
the length dimension of the second sleeve (33) is not greater than the depth dimension of the gap (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372228.3A CN107961012B (en) | 2017-12-18 | 2017-12-18 | Metal detection positioning device for laparoscopic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372228.3A CN107961012B (en) | 2017-12-18 | 2017-12-18 | Metal detection positioning device for laparoscopic surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107961012A CN107961012A (en) | 2018-04-27 |
| CN107961012B true CN107961012B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711372228.3A Active CN107961012B (en) | 2017-12-18 | 2017-12-18 | Metal detection positioning device for laparoscopic surgery |
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| Country | Link |
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| CN (1) | CN107961012B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914772A (en) * | 2020-12-04 | 2021-06-08 | 长沙微笑美齿智能科技有限公司 | Anti-interference tooth implant detection method and detection device thereof |
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| WO2008131391A1 (en) * | 2007-04-23 | 2008-10-30 | Device Evolutions, Llc | Surgical metal detection apparatus and methods |
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| WO1990000030A1 (en) * | 1988-07-01 | 1990-01-11 | Koch Elektronik + Apparatebau Ag | Measurement probe for locating metallic objects in the human or animal body |
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| US5649546A (en) * | 1991-06-25 | 1997-07-22 | Steinbeck; Ulrich | Metal detector for the localization of a metallic foreign body penetrated or implanted into a human or animal body |
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| Publication number | Publication date |
|---|---|
| CN107961012A (en) | 2018-04-27 |
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