CN109171829B - Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps - Google Patents
Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps Download PDFInfo
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- CN109171829B CN109171829B CN201811120614.8A CN201811120614A CN109171829B CN 109171829 B CN109171829 B CN 109171829B CN 201811120614 A CN201811120614 A CN 201811120614A CN 109171829 B CN109171829 B CN 109171829B
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- 238000005070 sampling Methods 0.000 title claims abstract description 59
- 210000003445 biliary tract Anatomy 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000012943 hotmelt Substances 0.000 claims description 6
- 238000010309 melting process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000003902 lesion Effects 0.000 abstract description 3
- 238000001574 biopsy Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000007459 endoscopic retrograde cholangiopancreatography Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Biodiversity & Conservation Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
- Endoscopes (AREA)
Abstract
The invention relates to the technical field of medical appliances, in particular to a biliary tract sampling forceps with a guide wire and a forming connection method of a guide wire through joint of the sampling forceps. By adopting the structure, the working diameter of the outer part of the sampling forceps can be basically unchanged, the diameter requirement of a working forceps channel passing through an endoscope is not high, the lesion position can be reached more easily, and the pain of a patient is reduced.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a biliary tract sampling forceps with a guide wire and a forming and connecting method of a guide wire through joint of the sampling forceps.
Background
At present, tissue biopsy is required before ERCP operation, because biliary tract is narrow, a sampling forceps is difficult to enter biliary tract, and after the biliary tract is advanced through a guide wire, the sampling forceps enter the biliary tract through the guide of the guide wire, and the sampling effect is affected because the guide wire and the sampling forceps are separated, the operation is inconvenient and the accuracy is not high. The invention patent with publication number of CN206836909U discloses a biopsy forceps sheath, although a guide wire pore canal body is additionally arranged outside the distal end of the sheath, and the guide wire pore canal body and a sampling forceps are combined together, the diameter of the whole biopsy forceps sheath is enlarged, especially the diameter of the distal end is more than 3.3mm, the inner diameter of a general endoscope is 2.8mm, and due to the enlarged diameter of the whole biopsy forceps sheath, the corresponding endoscope structure is also matched and changed, the difficulty is increased for the structure of surgical equipment, and in addition, the diameter of a human body is not suitable for the enlarged diameter biopsy forceps sheath.
Disclosure of Invention
The invention aims to solve the technical problems that: the invention provides a biliary tract sampling forceps with a guide wire and a forming connection method of a guide wire through joint of the sampling forceps, aiming at solving the technical problems that the sampling forceps in the prior art have larger outer diameter and cannot meet the high-requirement operation requirement and cause discomfort to human bodies.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a cross seal wire biliary tract sampling forceps, includes binding clip, binding clip frame, seal wire logical joint, elasticity outer tube, cable, boosting pipe, sliding ring and core bar, binding clip movable mounting is at the front end of binding clip frame, and the rear end of binding clip frame and elasticity outer tube front end fixed connection, and the rear end of elasticity outer tube is connected with the front end of core bar, and sliding ring sliding fit is on the core bar, and the cable movably alternates in the elasticity outer tube, and the front end of cable is connected with the binding clip, and the rear end of cable is connected with the front end of boosting pipe, and the rear end of boosting pipe is connected with the sliding ring, the seal wire leads to the joint to be fixed to be set up on the elasticity outer tube, and the both ends and the elasticity outer tube butt joint of seal wire lead to be provided with cable hole and seal wire hole on the seal wire leads to lead to the joint, and cable hole and elasticity outer tube inside are linked together, and the cable runs through the cable hole, and after the seal wire runs through the seal wire hole, the part of seal wire and all is located the sampling forceps outside, and the seal wire hole sets up along fore-and aft direction. The invention adopts a structure that the guide wire through joint is in butt joint with the elastic outer tube, the guide wire through joint is a plastic piece, namely, the guide wire through joint is positioned on one section of the elastic outer tube, one through hole of the guide wire through joint penetrates through a inhaul cable to control the operation of the sampling clamp, and the other through hole is used for passing through the guide wire, and the sampling clamp enters the focus position along the guide wire so as to sample. By adopting the structure, the working diameter of the outer part of the sampling forceps can be basically unchanged, the diameter requirement of a working forceps channel passing through an endoscope is not high, the lesion position can be reached more easily, and the pain of a patient is reduced.
Further, specifically, the maximum outer diameter of the guide wire through joint is D1, D1 is smaller than 2.8mm, and D1 is the maximum outer diameter on the elastic outer tube. In the prior art, the diameter of a guide wire hole is increased to be more than 3.3mm at the front end of the sampling forceps, so that the requirement on the matching of an endoscope is very high, and the sampling forceps are inconvenient to widely apply.
Further, in order to ensure the guiding effect of the guide wire passing through the passage wire of the guide wire passing through joint, the installation position of the guide wire passing through joint is close to the front end of the elastic outer tube.
Further, preferably, the distance L between the front end of the guide wire through joint and the front end of the elastic outer tube is 0-50mm.
Further, the guide wire through joint and the elastic outer tube are fixedly butted in a hot melting mode.
In order to improve the stability of hot melt connection, the tip that elasticity outer tube and seal wire lead-through connect are connected is provided with elasticity outer tube connecting pipe, and the periphery of elasticity outer tube connecting pipe is provided with barb structure, and the both ends suit that the seal wire led-through connect is at elasticity outer tube connecting pipe periphery and heat hot melt fixed connection.
When the distance L between the front end of the guide wire through joint and the front end of the elastic outer tube is 0, the front end of the guide wire through joint is fixedly connected with the rear end of the jaw frame, and the rear end of the guide wire through joint is fixedly connected with the front end of the elastic outer tube.
The rear end of the binding clip frame extends to be provided with a binding clip frame connecting pipe, the periphery of the binding clip frame connecting pipe is provided with a barb structure, the front end of the guide wire through joint is sleeved at the periphery of the binding clip frame connecting pipe and is fixedly connected with the guide wire through joint by heating and hot melting, the front end of the elastic outer pipe extends to be provided with a barb structure, and the rear end of the guide wire through joint is sleeved at the periphery of the elastic outer pipe connecting pipe and is fixedly connected with the elastic outer pipe connecting pipe by heating and hot melting.
Preferably, the outer diameter of the guide wire through joint is consistent with that of the elastic outer tube, the guide wire hole is not positioned outside the elastic outer tube, the guide wire through joint and the elastic outer tube or the rear end of the jaw frame form a coherent whole, a channel in the guide wire hole is arc-shaped, and two ports of the guide wire hole are communicated with the outside of the sampling jaw.
When the outer diameter of the guide wire through joint is consistent with the outer diameter of the elastic outer tube, the guide wire through joint forming and connecting method of the guide wire biliary tract sampling forceps comprises the following steps:
1) Taking a double-cavity tube which is a plastic piece, wherein the outer diameter of the double-cavity tube is consistent with that of the elastic outer tube;
2) The double-cavity tube is provided with two axial through holes, one through hole is a inhaul cable hole, two radial perforations are respectively arranged on the periphery of the double-cavity tube near two ends of the double-cavity tube, the perforations are communicated with the other through hole, the core wire passes through the two perforations, the core wire passes through the other through hole,
3) Heating the double-cavity tube in the step 2 to deform the other through hole penetrated by the core wire to form an arc-shaped channel, the arc-shaped channel is recessed towards the center of the double-cavity tube,
4) And after the arc-shaped channel is formed, the core wire is drawn out, and the arc-shaped channel is a wire guide hole.
5) And then the double-cavity tube is in hot melting butt joint with the clamp head frame/the elastic outer tube, after butt joint, the inhaul cable hole is used for penetrating through the inhaul cable, the guide wire hole is used for penetrating through the guide wire, and two ports of the other through hole are blocked in the butt joint hot melting process.
The invention has the beneficial effects that the shaping connection method of the guide wire through joint of the over-guide wire biliary tract sampling forceps and the sampling forceps adopts a structure that the guide wire through joint is in hot melting butt joint with the elastic outer tube, one through hole of the guide wire through joint passes through a inhaul cable to control the operation of the sampling forceps, and the other through hole is used for leading the sampling forceps to enter the focus position along the guide of the guide wire through the guide wire, thereby sampling. By adopting the structure, the working diameter of the outer part of the sampling forceps can be unchanged, the requirement on the diameter of a working forceps channel passing through an endoscope is not high, the lesion position can be reached more easily, and the pain of a patient is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of a structure of a guide wire biliary tract sampling forceps according to an embodiment of the present invention.
Fig. 2 is a schematic view showing the structure of a guide wire passing through a biliary tract sampling forceps according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a two-wire biliary tract sampling forceps according to an embodiment of the invention.
Fig. 4 is a schematic structural view of a three-wire biliary tract sampling forceps according to an embodiment of the invention.
Fig. 5 is a schematic structural view of a four-wire biliary tract sampling forceps according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a five-double lumen tube according to the present invention.
Fig. 7 is a schematic structural view of a five-wire biliary tract sampling forceps according to an embodiment of the invention.
In the figure: 1. the clamp head, 2, the clamp head frame, 21, the clamp head frame connecting pipe, 3, the guide wire connecting joint, 31, the guide wire hole, 32, the inhaul cable hole, 4, the elastic outer pipe, 41, an elastic outer tube connecting tube, 5, a guy cable, 6, a boosting tube, 7, a slip ring, 8, a core rod, 9, a guide wire, 11, a double-cavity tube, 111 and a perforation.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
Referring to fig. 1 and 2, a pair of biliary tract sampling forceps with a guide wire according to an embodiment of the present invention includes a forceps head 1, a forceps head frame 2, a guide wire connector 3, an elastic outer tube 4, a pull cable 5, a push-up tube 6, a slip ring 7 and a core rod 8, wherein the forceps head 1 is movably mounted at the front end of the forceps head frame 2, the rear end of the forceps head frame 2 is fixedly connected with the front end of the elastic outer tube 4, the rear end of the elastic outer tube 4 is connected with the front end of the core rod 8, the slip ring 7 is slidably fitted on the core rod 8, the pull cable 5 is movably inserted in the elastic outer tube 4, the front end of the pull cable 5 is connected with the forceps head 1, the rear end of the pull cable 5 is connected with the front end of the push-up tube 6, the rear end of the push-up tube 6 is connected with the slip ring 7, the rear end of the core rod 8 is provided with a pull ring, the guide wire connector 3 is fixedly arranged on the elastic outer tube 4, both ends of the guide wire connector 3 are butted with the elastic outer tube 4, a pull cable 32 and a guide hole 31 are arranged on the guide wire connector 3, the pull cable 32 is communicated with the inside the elastic outer tube 4, the pull cable 32 is connected with the guide cable 32, the guide cable 5 penetrates the guide cable 31, and the guide cable 31 is arranged outside the guide wire hole 31 along the direction of the front of the guide wire 4. The maximum outer diameter of the guide wire through joint 3 is D1, D1 is less than 2.8mm, and D1 is the maximum outer diameter on the elastic outer tube 4 (the guide wire through joint 3 and the elastic outer tube 4 form a whole). The guide wire through joint 3 is mounted close to the front end of the elastic outer tube 4. The distance L between the front end of the guide wire through joint 3 and the front end of the elastic outer tube 4 is more than 0 and less than 50mm. The guide wire through joint 3 and the elastic outer tube 4 are fixedly butted in a hot melting mode.
Example two
As shown in fig. 3, the difference between the second embodiment and the first embodiment is that the end portion of the elastic outer tube 4 connected with the guide wire passing joint 3 is provided with an elastic outer tube connecting tube 41, the outer periphery of the elastic outer tube connecting tube 41 is provided with a barb structure, and two ends of the guide wire passing joint 3 are sleeved on the outer periphery of the elastic outer tube connecting tube 41 and are fixedly connected by heating and hot melting.
Example III
As shown in fig. 4, the third embodiment differs from the first embodiment in that: and L is 0, namely the front end of the guide wire through joint 3 is directly and fixedly connected with the rear end of the clamp head frame 2 in a hot melting way, and the rear end of the guide wire through joint 3 is fixedly connected with the front end of the elastic outer tube 4 in a hot melting way.
Example IV
As shown in fig. 5, the fourth embodiment differs from the second embodiment in that: l is 0, namely the front end of the guide wire passing joint 3 and the rear end of the clamp head frame 2 are directly connected in a hot melting mode, the rear end of the clamp head frame 2 is extended to form a clamp head frame connecting pipe 21, the periphery of the clamp head frame connecting pipe 21 is provided with a barb structure, the front end of the guide wire passing joint 3 is sleeved on the periphery of the clamp head frame connecting pipe 21 and is connected in a hot melting mode, the front end of the elastic outer tube 4 is extended to form an elastic outer tube connecting pipe 41, the periphery of the elastic outer tube connecting pipe 41 is provided with a barb structure, and the rear end of the guide wire passing joint 3 is sleeved on the periphery of the elastic outer tube connecting pipe 41 and is connected in a hot melting mode.
Example five
As shown in fig. 6 and 7, the fifth embodiment differs from the first embodiment in that: the outer diameter of the guide wire through joint 3 is consistent with the outer diameter of the elastic outer tube 4, namely the guide wire hole 31 does not protrude outside the elastic outer tube, a channel in the guide wire hole 31 is arc-shaped, and two ports of the guide wire hole 31 are communicated with the outside of the sampling forceps.
The method for forming and connecting the guide wire through joint of the guide wire biliary tract sampling forceps according to the fifth embodiment is characterized by comprising the following steps:
1) Taking a double-cavity tube 11, wherein the double-cavity tube 11 is a plastic piece, and the outer diameter of the double-cavity tube 11 is consistent with the outer diameter of the elastic outer tube 4;
2) The double-cavity tube 11 is provided with two axial through holes, one through hole is a guy cable hole 32, two radial through holes 111 are respectively arranged on the periphery of the double-cavity tube 11 near two ends, the through holes 111 are communicated with the other through hole, a core wire passes through the two through holes 111, the core wire passes through the other through hole,
3) The double-cavity tube 11 in the step 2 is heated to deform the other through hole penetrated by the core wire to form an arc-shaped channel, the arc shape is recessed towards the center of the double-cavity tube 11,
4) After the arc-shaped channel is formed, the core wire is drawn out, and the arc-shaped channel is a wire guide hole 31.
5) And then the double-cavity tube 11 is in hot melting butt joint with the elastic outer tube 4, a guy cable hole 32 is used for penetrating the guy cable 5 after butt joint, a guide wire hole 31 is used for penetrating the guide wire 9, and two ports of the other through hole are blocked in the butt joint hot melting process.
The guide wire through joint 3 of the biliary tract sampling forceps with the guide wire in the fifth embodiment can be directly and fixedly connected with the rear end of the forceps head frame 2 by hot melting in a similar way to the front end of the guide wire through joint 3 in the third embodiment. The hot-melt connection part of the guide wire through joint 3 in the fifth embodiment can also adopt a structure similar to the structure of adding barbs to the extension connecting pipe in the fourth embodiment and the second embodiment so as to improve the stability of the hot-melt connection.
The structure that the guide wire through joint 3 (double-cavity tube) is in butt joint with the elastic outer tube 4 is adopted, one through hole (a guy cable hole 32) of the guide wire through joint 3 penetrates through the guy cable 5 to control the work of the clamp head 1, the other through hole (a guide wire hole 31) is used for leading a sampling clamp to enter a focus position along the guide of the guide wire 9 through the guide wire 9, and then sampling is carried out. The working diameter of the outer part of the sampling forceps can be basically unchanged, because the diameter of the outer convex wire guide hole 31 is generally increased by about 1mm, and the working diameter of the outer part of the sampling forceps is not affected by the wire guide hole 31 without the outer convex wire guide hole, so that the working diameter of the outer part of the sampling forceps has low requirement on the diameter of a working forceps channel of an endoscope, the working diameter of the outer part of the sampling forceps can reach a focus position more easily, and the pain of a patient is reduced.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A biliary tract sampling forceps with a guide wire, which is characterized in that: comprises a clamp head (1), a clamp head frame (2), a guide wire connecting head (3), an elastic outer tube (4), a pull rope (5), a boosting tube (6), a slip ring (7) and a core rod (8), wherein the clamp head (1) is movably arranged at the front end of the clamp head frame (2), the rear end of the clamp head frame (2) is fixedly connected with the front end of the elastic outer tube (4), the rear end of the elastic outer tube (4) is connected with the front end of the core rod (8), the slip ring (7) is in sliding fit on the core rod (8), the pull rope (5) is movably inserted in the elastic outer tube (4), the front end of the pull rope (5) is connected with the clamp head (1), the rear end of the pull rope (5) is connected with the front end of the boosting tube (6), and the rear end of the boosting tube (6) is connected with the slip ring (7),
the two ends of the guide wire through joint (3) are in butt joint with the elastic outer tube (4), the guide wire through joint (3) is provided with a guy cable hole (32) and a guide wire hole (31), the guy cable hole (32) is communicated with the inside of the elastic outer tube (4), the guy cable (5) penetrates through the guy cable hole (32), after the guide wire (9) penetrates through the guide wire hole (31), the part of the guide wire (9) penetrating out of the guide wire hole (31) is positioned outside the sampling forceps, and the guide wire hole (31) is arranged along the front-back direction;
the guide wire through joint (3) is a plastic piece, the outer diameter of the guide wire through joint (3) is consistent with the outer diameter of the elastic outer tube (4), a channel in the guide wire hole (31) is arc-shaped, and two ports of the guide wire hole (31) are communicated with the outside of the sampling forceps.
2. The over-the-wire biliary tract sampling forceps of claim 1, wherein: the maximum outer diameter of the guide wire through joint (3) is D1, D1 is smaller than 2.8mm, and D1 is the maximum outer diameter of the elastic outer tube (4).
3. The over-the-wire biliary tract sampling forceps of claim 1, wherein: the installation position of the guide wire through joint (3) is close to the front end of the elastic outer tube (4).
4. The over-the-wire biliary tract sampling forceps of claim 3, wherein: the distance L between the front end of the guide wire through joint (3) and the front end of the elastic outer tube (4) is 0-50mm.
5. The over-the-wire biliary tract sampling forceps of claim 1, wherein: the guide wire through joint (3) and the elastic outer tube (4) are fixedly butted in a hot melting mode.
6. The over-the-wire biliary tract sampling forceps of claim 1, wherein: the end part of the elastic outer tube (4) connected with the guide wire through joint (3) is provided with an elastic outer tube connecting tube (41), the periphery of the elastic outer tube connecting tube (41) is provided with a barb structure, and the two ends of the guide wire through joint (3) are sleeved on the periphery of the elastic outer tube connecting tube (41) and are fixedly connected through heating and hot melting.
7. The over-the-wire biliary tract sampling forceps of claim 1, wherein: when the distance L between the front end of the guide wire through joint (3) and the front end of the elastic outer tube (4) is 0, the front end of the guide wire through joint (3) is fixedly connected with the rear end of the clamp head frame (2), and the rear end of the guide wire through joint (3) is fixedly connected with the front end of the elastic outer tube (4).
8. The over-the-wire biliary tract sampling forceps of claim 1, wherein: the rear end of binding clip frame (2) extends there is binding clip frame connecting pipe (21), the periphery of binding clip frame connecting pipe (21) is provided with the barb structure, the front end suit of seal wire leads to joint (3) is at binding clip frame connecting pipe (21) periphery and heating hot melt fixed connection, the front end of elasticity outer tube (4) extends there is the periphery of elasticity outer tube connecting pipe (41) to be provided with the barb structure, the rear end suit of seal wire leads to joint (3) is at elasticity outer tube connecting pipe (41) periphery and heating hot melt fixed connection.
9. A method of forming and connecting a guide wire access tip of a guide wire biliary tract sampling forceps according to any one of claims 1 to 8, comprising the steps of:
1) Taking a double-cavity tube (11), wherein the double-cavity tube (11) is a plastic piece, and the outer diameter of the double-cavity tube (11) is consistent with the outer diameter of the elastic outer tube (4);
2) The double-cavity tube (11) is provided with two axial through holes, one through hole is a guy cable hole (32), two radial through holes (111) are respectively arranged at the two ends of the periphery of the double-cavity tube (11) near the two ends, the through holes (111) are communicated with the other through hole, a core wire passes through the two through holes (111) and penetrates through the other through hole,
3) Heating the double-cavity tube (11) in the step 2 to deform the other through hole penetrated by the core wire to form an arc-shaped channel, and the arc shape is recessed towards the center of the double-cavity tube (11),
4) After the arc-shaped channel is formed, the core wire is drawn out, and the arc-shaped channel is a wire guiding hole (31)
5) And then the double-cavity tube (11) is in hot melting butt joint with the clamp head frame (2) or the elastic outer tube (4), a cable hole (32) is used for penetrating the cable (5) after butt joint, a guide wire hole (31) is used for penetrating the guide wire (9), and two ports of the other through hole are blocked in the butt joint hot melting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120614.8A CN109171829B (en) | 2018-09-26 | 2018-09-26 | Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120614.8A CN109171829B (en) | 2018-09-26 | 2018-09-26 | Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109171829A CN109171829A (en) | 2019-01-11 |
| CN109171829B true CN109171829B (en) | 2024-04-16 |
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| CN201811120614.8A Active CN109171829B (en) | 2018-09-26 | 2018-09-26 | Forming connection method of guide wire through joint of guide wire biliary tract sampling forceps and sampling forceps |
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| CN115416320B (en) * | 2022-11-02 | 2023-01-24 | 常州凯士多医疗科技有限公司 | Sampling forceps conveying system and feeding method |
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| CN109171829A (en) | 2019-01-11 |
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