CN210170089U - Superfine sampling forceps for endoscope - Google Patents
Superfine sampling forceps for endoscope Download PDFInfo
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- CN210170089U CN210170089U CN201920442316.4U CN201920442316U CN210170089U CN 210170089 U CN210170089 U CN 210170089U CN 201920442316 U CN201920442316 U CN 201920442316U CN 210170089 U CN210170089 U CN 210170089U
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- binding clip
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Abstract
The utility model relates to a medical device, in particular to an endoscope used superfine sampling forceps, which comprises a forceps head, a forceps head frame, a connecting rod mechanism, an outer tube, a pull cable and a handle shell, wherein the forceps head is fixedly connected at the front end of the connecting rod mechanism; the utility model sets the single-circle section of the spring tube of the outer tube into the oval shape arranged transversely, so that the inner diameter of the outer tube can be increased under the condition of ensuring that the outer diameter of the outer tube is not increased, the clamping force of the jaw part is increased, and the condition that the pulling force is too large to break the stay cable is greatly reduced; simultaneously, set up the PTFE coating at outer tube inner wall and cable outer wall after the outer tube internal diameter grow, the outer tube outer wall also is provided with the PTFE coating, can prevent human internal liquid to the corruption of sampling forceps, can also increase the lubricated effect between cable and the outer tube, the effectual efficiency that improves when the doctor operates.
Description
Technical Field
The utility model relates to a medical device, in particular to an ultra-fine sampling forceps for an endoscope.
Background
The existing endoscope biopsy forceps are mainly applied to taking out media existing in living bodies such as human bodies and animal bodies, the overall structure of the forceps is small, and the media in the living bodies can be taken out under the condition that external tissues of the human bodies are not damaged. The diameter of an outer tube of a conventional endoscope sampling forceps used at present is usually 1.8 mm, and Chinese utility model patent No. CN206324806U discloses a living body sampling forceps, which is convenient for a doctor to operate by setting the diameter of the outer diameter of an outer shell tube to be 0.7-1.0 mm; however, the outer casing tube of the device may be corroded by gastric acid or mucus in the stomach or esophagus during use, and the outer diameter of the outer casing tube is reduced by the diameter of the guy cable in the same proportion, so that the maximum tensile force borne by the guy cable is affected, the clamping force of the jaw part is reduced, the situation of breakage of the guy cable is easily caused when the tensile force is too large, operation failure is caused, and the pain of a patient is increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide an endoscope-used superfine sampling forceps, which increases the inner diameter of an outer tube on the premise of ensuring that the diameter of the outer tube is 0.7-1.0 mm, thereby being capable of using a guy cable with larger diameter and increasing the clamping force of the forceps head part; the PTFE coating can also prevent the body fluid from corroding the sampling forceps.
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
an endoscope used superfine sampling forceps comprises a forceps head, a forceps head frame, a connecting rod mechanism, an outer tube, a pull cable and a handle shell, wherein the forceps head is fixedly connected to the front end of the connecting rod mechanism, the connecting rod mechanism is movably connected to the front portion of the forceps head frame, the rear end of the connecting rod mechanism is movably hinged to the front end of the pull cable, and the rear end of the pull cable penetrates through a cavity in the outer tube and then is fixedly connected with a movable ring; the clamp head frame is characterized in that the rear end of the clamp head frame is fixedly connected with the front end of an outer tube, the outer tube is a spring tube, the cross section of a single circle of the outer tube is in a transversely-arranged oval shape, the rear end of the outer tube is fixedly connected with the front end of a handle shell, sliding through holes are symmetrically formed in two sides of the handle shell, a movable ring extends out of the sliding through holes and can slide along the sliding through holes, and a fixed ring is fixedly connected to the rear portion of the handle shell.
Further, the outer diameter of the outer pipe is 0.7 mm to 1.0 mm, and the inner wall and the outer wall of the outer pipe are both provided with PTFE coatings.
Furthermore, the binding clip includes binding clip and lower binding clip, go up binding clip and be equipped with anti-skidding tooth respectively with the relative one side of lower binding clip, the point portion of going up binding clip antiskid tooth is corresponding with the recess between the binding clip antiskid tooth down.
Furthermore, a PTFE coating is arranged on the outer wall of the inhaul cable.
Furthermore, the movable finger rings are arranged in two symmetrical positions.
Compared with the prior art, the beneficial effects of the utility model reside in that: in the utility model, the single-circle section of the outer tube spring tube is set into the oval shape which is transversely arranged, so that the inner diameter of the outer tube can be increased under the condition that the outer diameter of the outer tube is not increased, thereby the inhaul cable with larger diameter can be used, the clamping force of the jaw part is increased, and the condition that the inhaul cable is broken due to overlarge pulling force is greatly reduced; simultaneously, set up the PTFE coating at outer tube outer wall, inner wall and cable outer wall, can prevent the corruption of human internal liquid to the sampling forceps, can also increase the lubricated effect between cable and the outer tube, the effectual efficiency that improves when the doctor operates reduces patient's misery simultaneously.
Drawings
FIG. 1 is a three-dimensional structure diagram of the sampling clamp of the present invention;
FIG. 2 is a partial cross-sectional view of a sampling clamp according to the present invention;
FIG. 3 is a perspective view of the handle portion of the present invention;
fig. 4 is a cross-sectional view of a portion of the handle of the present invention;
wherein, 1 is a binding clip, 11 is an upper binding clip, 12 is a lower binding clip, 2 is a link mechanism, 3 is an outer tube, 4 is a guy cable, 5 is a movable ring, 6 is a fixed ring, 7 is a sliding through hole, 8 is a head of the binding clip, 9 is a handle shell.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in the description of the technical solutions of the present invention, some orientation words, such as "front", "back", "upper", "lower", "top surface", "bottom surface", "inner", "outer", etc., used for clearly describing the technical features of the present invention are all according to the orientation of the drawings of the present invention.
As shown in fig. 1 to 4, the superfine sampling forceps for endoscopes includes a forceps head 1, a forceps head frame 8, a link mechanism 2, an outer tube 3, a pulling cable 4 and a handle housing 9, wherein the forceps head 1 is fixedly connected to the front end of the link mechanism 2, the link mechanism 2 is movably connected to the front portion of the forceps head frame 8, the rear end of the link mechanism 2 is movably hinged to the front end of the pulling cable 4, and the rear end of the pulling cable 4 penetrates through the inner cavity of the outer tube 3 and is fixedly connected with a movable finger ring 5; the rear end of the forceps head frame 8 is fixedly connected with the front end of the outer tube 3, the outer tube 3 is a spring tube, the cross section of a single circle of the outer tube is in a transversely-arranged oval shape, the rear end of the outer tube 3 is fixedly connected with the front end of the handle shell 9, sliding through holes 7 are symmetrically formed in two sides of the handle shell 9, the movable finger ring 5 extends out of the sliding through holes 7 and can slide along the sliding through holes 7, and the rear portion of the handle shell 9 is fixedly connected with a fixed finger ring 6. The spring wire section of the spring pipe of the outer pipe 3 is designed to be an oval structure, the long shaft of the spring pipe is connected with the spring wire section, the inner diameter of the outer pipe 3 can be increased on the premise that the outer diameter of the outer pipe 3 is not increased, therefore, a stay cable 4 with a larger diameter can be used, the clamping force of the jaw part is increased, and the condition that the stay cable 4 is broken due to overlarge tension is greatly reduced.
Preferably, the outer diameter of the outer tube 3 is 0.7 mm to 1.0 mm, and the inner wall and the outer wall of the outer tube 3 are both provided with PTFE coatings. By providing the PTFE coating on the inner and outer walls of the outer tube 3, the outer tube 3 is not corroded by body fluids in the body.
Preferably, the binding clip 1 includes an upper binding clip 11 and a lower binding clip 12, the opposite sides of the upper binding clip 11 and the lower binding clip 12 are respectively provided with anti-slip teeth, and the tip of the anti-slip teeth of the upper binding clip 11 corresponds to the groove between the anti-slip teeth of the lower binding clip 12. Through setting up anti-skidding tooth, can make by the difficult roll-off of centre gripping tissue.
Preferably, a PTFE coating is disposed on the outer wall of the stay cable 4. PTFE has high lubricity, sets up the PTFE coating on the outer wall of cable 4, can increase the flexibility of cable 4 in outer tube 3, makes things convenient for medical staff to control.
Preferably, the two movable finger rings 5 are symmetrically arranged.
When the utility model is used, the movable ring 5 is pulled and pushed to drive the inhaul cable 4 to pull the rear end of the connecting rod mechanism 2, and the connecting rod mechanism controls the upper tong head 11 and the lower tong head 12 to be closed and opened so as to clamp the target tissue; in the utility model, the outer diameter of the outer tube 3 is 0.7-1.0 mm, the cross section of the spring wire of the spring tube of the outer tube 3 is set to be elliptical, and the long axis of the spring wire is connected, so that the volume of the inner cavity of the outer tube 3 can be increased on the premise of not increasing the outer diameter of the outer tube 3, the diameter adopted by the inhaul cable 4 can be larger, and the bearable pulling force is increased, so that the head part of the clamp has larger clamping force relative to the sampling clamp with the same size; simultaneously the outer wall of cable 4, 3 inner walls of outer tube and outer wall all are provided with the PTFE coating to increase the degree of lubrication of cable 4 and 3 inner walls of outer tube, make things convenient for medical staff's controlling, and the PTFE coating still has corrosion resistance, prevents that the sampling forceps from being corroded by the body fluid when human.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (5)
1. The utility model provides an endoscope is with superfine sampling pincers, includes binding clip (1), pincers headstock (8), link mechanism (2), outer tube (3), cable (4) and handle shell (9), its characterized in that: the pliers head (1) is fixedly connected to the front end of the connecting rod mechanism (2), the connecting rod mechanism (2) is movably connected to the front part of the pliers head frame (8), the rear end of the connecting rod mechanism (2) is movably hinged with the front end of the inhaul cable (4), and the rear end of the inhaul cable (4) penetrates through the inner cavity of the outer pipe (3) and then is fixedly connected with the movable finger ring (5); the clamp head frame (8) rear end is fixedly connected with the outer tube (3) front end, the outer tube (3) is a spring tube, the cross section of a single circle of the outer tube is in a transversely-arranged oval shape, the outer tube (3) rear end is fixedly connected with the handle shell (9) front end, sliding through holes (7) are symmetrically formed in two sides of the handle shell (9), the movable finger ring (5) extends out of the sliding through holes (7) and can slide along the sliding through holes (7), and the handle shell (9) rear portion is fixedly connected with a fixed finger ring (6).
2. The superfine endoscope sampling forceps according to claim 1, wherein: the outer diameter of the outer pipe (3) is 0.7 mm to 1.0 mm, and the inner wall and the outer wall of the outer pipe (3) are both provided with PTFE coatings.
3. The superfine endoscope sampling forceps according to claim 1, wherein: the binding clip (1) comprises an upper binding clip (11) and a lower binding clip (12), anti-skidding teeth are respectively arranged on one side, opposite to the upper binding clip (11) and the lower binding clip (12), of the upper binding clip (11), and the tip of the anti-skidding teeth of the upper binding clip (11) corresponds to the groove between the anti-skidding teeth of the lower binding clip (12).
4. The superfine endoscope sampling forceps according to claim 1, wherein: and a PTFE coating is arranged on the outer wall of the inhaul cable (4).
5. The superfine endoscope sampling forceps according to claim 1, wherein: the two movable finger rings (5) are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920442316.4U CN210170089U (en) | 2019-04-03 | 2019-04-03 | Superfine sampling forceps for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920442316.4U CN210170089U (en) | 2019-04-03 | 2019-04-03 | Superfine sampling forceps for endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN210170089U true CN210170089U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920442316.4U Active CN210170089U (en) | 2019-04-03 | 2019-04-03 | Superfine sampling forceps for endoscope |
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| CN (1) | CN210170089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224401A (en) * | 2021-12-21 | 2022-03-25 | 江苏安德瑞医疗器械配件有限公司 | Superfine endoscope sampling forceps |
-
2019
- 2019-04-03 CN CN201920442316.4U patent/CN210170089U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114224401A (en) * | 2021-12-21 | 2022-03-25 | 江苏安德瑞医疗器械配件有限公司 | Superfine endoscope sampling forceps |
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