CN113925579A

CN113925579A - Endoscope probe fixer and have its stopper subassembly and puncture ware

Info

Publication number: CN113925579A
Application number: CN202111223568.6A
Authority: CN
Inventors: 樊友平; 梅里翁.里斯.托马斯; 倪前龙; 杨海龙; 居朝永; 陈伟理; 魏义
Original assignee: Shanghai Zhiyu Medical Instrument Co ltd
Current assignee: Shanghai Zhiyu Medical Instrument Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-01-14

Abstract

The invention relates to an endoscope probe fixer, which comprises a knob (11) and an elastic sleeve (12), wherein the elastic sleeve (12) is of an inner diameter adjustable structure, matching profiles are arranged on an inner hole of the knob (11) and the periphery of the elastic sleeve (12), and the inner diameter of the elastic sleeve (12) can be reduced or enlarged by clockwise or anticlockwise rotating the knob (11) along the axis of the inner hole, so that the endoscope probe can be clamped or loosened. The invention also provides an obturator assembly and a penetrator with the endoscope probe holder. The endoscope probe can be stably fixed on the stopper component by adopting the knob and the elastic sleeve with adjustable inner diameter, and the endoscope probe cannot shake in the stopper component during puncture, so that clear endoscope imaging can be obtained.

Description

Endoscope probe fixer and have its stopper subassembly and puncture ware

Technical Field

The invention belongs to the field of minimally invasive surgical instruments, and particularly relates to an endoscope probe fixer, and a stopper assembly and a puncture outfit with the same.

Background

In the existing minimally invasive surgery, a puncture outfit is often used, and the puncture outfit is usually composed of an obturator component and a sleeve component. When puncturing a first puncture instrument near a lesion of a patient, visual puncturing is generally required because the inside of the body of the patient is not visible.

Visual puncture is exactly that the puncture ware is when the puncture, with in the stopper subassembly inserts the thimble assembly, then with the endoscope insert in the stopper subassembly, wholly uses, just after puncturing patient's skin when the puncture ware, just can see the inside condition of health through the endoscope to reduce the operation risk. Such as the one disclosed in AU2013203912a 1. Most of puncture device stopper assemblies sold in the market do not have an endoscope fixing function, and a few of the puncture device stopper assemblies use rubber parts to fix an endoscope, so that the endoscope shakes in the stopper assembly during puncture, and the imaging of the endoscope is not clear.

The present invention has been made in view of the above circumstances.

Disclosure of Invention

The invention aims to provide an endoscope probe fixer, which can prevent an endoscope probe from shaking in an obturator assembly during puncture, thereby obtaining clear endoscope imaging.

The technical scheme of the invention is as follows: the utility model provides an endoscope probe fixer, includes knob and elastic sleeve, elastic sleeve is the adjustable structure of internal diameter, be provided with the cooperation profile on the knob hole and on the elastic sleeve periphery, clockwise or anticlockwise rotation along its inner bore axis through the knob can let elastic sleeve's internal diameter diminishes or grow, realizes the clamp of endoscope probe or relaxs.

Further, the upper part of the elastic sleeve is a tubular structure formed by dividing 2 or more elastic sleeves with gaps; the cooperation profile includes the screw thread boss on the knob hole pore wall and the screw thread on the split upper portion periphery of elastic sleeve pipe, the screw thread boss can with the screw thread constitutes interference fit.

Optionally, the upper part of the elastic sleeve is a tubular structure formed by 2 or more elastic sleeve segments with gaps, and an outer convex cambered surface is arranged at the upper part of each elastic sleeve segment, so that the thickness of the upper part of each elastic sleeve segment is continuously increased along the clockwise direction; the hole wall of the inner hole of the knob is provided with clamping ribs with the same number as the split petals of the elastic sleeve.

Optionally, the upper part of the elastic sleeve is a tubular structure formed by 2 or more elastic sleeve segments with gaps, and the outer surface of the upper part of each elastic sleeve segment is provided with a convex rib; the hole wall of the inner hole of the knob is provided with an inward concave cambered surface with the same number of the petals of the elastic sleeve.

Furthermore, the knob is of a semi-spherical structure with a through inner hole, and uniformly distributed depressions or protrusions convenient for fingers to grasp are arranged on the outer surface of the knob.

Furthermore, the lower part of the elastic sleeve is a sleeve seat, and the periphery of the elastic sleeve is provided with a buckle matched with the stopper assembly.

It is another object of the present invention to provide an obturator assembly having the endoscopic probe holder described above.

It is another object of the present invention to provide a puncture instrument that includes an obturator assembly and a cannula assembly, and further includes an endoscopic probe holder as previously described.

The invention has the advantages that: 1. due to the adoption of the knob and the elastic sleeve with adjustable inner diameter, the endoscope probe can be stably fixed on the stopper component, and the endoscope probe cannot shake in the stopper component during puncture, so that clear endoscope imaging can be obtained.

2. The elastic sleeve is a tubular structure consisting of 2 or more than one valve, can uniformly clamp the endoscope probe, and avoids the damage to the endoscope probe.

3. Through the profile fit on the 2-lobe or multi-lobe structure, a plurality of positions between the knob and the elastic sleeve form surface contact, so that the fit between the knob and the elastic sleeve is stable and reliable.

4. The knob is provided with the concave or convex, so that a user can rotate the knob better.

Drawings

FIG. 1 is a schematic structural view of one embodiment of an endoscopic probe holder of the present invention.

Fig. 2 is a schematic structural view of the elastic sleeve of the embodiment shown in fig. 1.

Fig. 3 is a schematic view of the elastic tube of fig. 2 at another angle.

Fig. 4 is a schematic structural view of the knob of the embodiment shown in fig. 1 in a top view.

FIG. 5 is a schematic structural view of another embodiment of an endoscopic probe holder of the present invention.

Fig. 6 is a schematic structural view of the knob of the embodiment shown in fig. 5.

Fig. 7 is a schematic view of the structure of the elastic sleeve of the embodiment shown in fig. 5.

FIG. 8 is a schematic structural view of another embodiment of an endoscopic probe holder of the present invention.

Fig. 9 is a schematic structural view of the knob of the embodiment shown in fig. 8.

Fig. 10 is a schematic view of the structure of the elastic sleeve of the embodiment shown in fig. 8.

Fig. 11 is a schematic structural view of a puncture instrument having an endoscopic probe holder according to the present invention.

Fig. 12 is a schematic view showing a state of use of a puncture instrument having an endoscopic probe holder according to the present invention.

The endoscope probe comprises a 10-endoscope fixer, a 11-knob, a 111-thread boss, a 111 '-clamping rib, a 111' -concave cambered surface, a 112-bulge, a 12-elastic sleeve, a 121-thread, a 121 '-convex cambered surface, a 121' -convex rib, a 122-buckle, a 123-central hole, a 124-gap, a 20-stopper component, a 30-sleeve component and a 40-endoscope probe.

Detailed Description

An endoscopic probe holder, and obturator assembly and penetrator having the same, in accordance with the present invention are further described with reference to fig. 1-12.

As shown in fig. 1-4, an endoscope probe holder 10 of the present invention includes a knob 11 and an elastic sleeve 12, the elastic sleeve 12 has an adjustable inner diameter, and mating profiles are respectively disposed on an inner bore of the knob 11 and an outer periphery of the elastic sleeve 12, so that the knob 11 and the elastic sleeve 12 can move relative to each other, and by rotating the knob 11 clockwise or counterclockwise along an axis of the inner bore, the inner diameter of the elastic sleeve 12 can be reduced or increased, thereby clamping or releasing an endoscope probe. In the relaxed state, the inner diameter of the elastic tube 12 is slightly larger than the outer diameter of the endoscope probe, so that the endoscope probe can be smoothly inserted into the endoscope probe holder 10.

In a preferred embodiment, as shown in fig. 2, 3 and 4, the upper portion of the elastic sleeve 12 is a tubular structure of 2 petals with gaps; the matching profiles respectively comprise a thread boss 111 on the inner hole of the knob 11 and a thread 121 on the outer periphery of the upper part of the elastic sleeve 12, the thread boss 111 has three sections which are respectively part of the thread on the inner hole of the knob 11, and the three sections can form interference fit with the thread 121 on each section of the outer periphery of the upper part of the elastic sleeve 12.

In the initial state, the knob 11 is clamped into the thread 121 on the periphery of each segment of the upper part of the elastic sleeve 12 through the thread boss 111, and the knob 11 can be ensured not to fall off from the elastic sleeve 12 just after clamping, so that the inner diameter of the central hole 123 of the elastic sleeve 12 can be ensured to be larger than the diameter of the endoscope probe. When it is desired to secure the endoscopic probe, the endoscopic probe is inserted into the obturator assembly from the central bore 123 and the knob 11 is then rotated clockwise so that the threaded boss 111 moves down the thread 121, continuously squeezing each lobe of the resilient sleeve 12 closer to the axis of the central bore 123 so that the internal diameter of the central bore 123 becomes smaller until the endoscopic probe is compressed. Conversely, by rotating the knob 11 counterclockwise, the thread bosses 111 of the knob 11 are gradually disengaged from the threads 121 on the outer periphery of each lobe of the upper portion of the elastic tube 12, and then the component endoscope probe can be taken out.

As shown in fig. 2 and 3, the lower part of the elastic sleeve 12 is a sleeve seat, 2 elastic sleeve segments capable of forming a circular sleeve are arranged on the sleeve seat, the upper part of each elastic sleeve segment is provided with a thread 121, and the two elastic sleeve segments form a central hole 123 with a changeable diameter for passing through or clamping an endoscope probe. The sleeve seat can be also provided with more than 2 elastic sleeve segments, and the sleeve seat has the advantages that each segment can be in line contact with the endoscope probe inserted into the sleeve seat, so that the endoscope probe can be stably clamped.

The endoscopic probe holder 10 of the present invention may be independent of the obturator assembly, allowing the endoscopic probe holder 10 to be mounted to the obturator assembly when it is desired to grip an endoscopic probe, and allowing the endoscopic probe holder 10 to be removed from the obturator assembly when it is not desired. A snap 122 is provided circumferentially on the cannula holder and can snap into a snap groove (not shown) on the stopper assembly.

In a preferred embodiment, as shown in fig. 1 and 4, the knob 11 is a semi-spherical structure with a through inner hole, and the outer surface thereof is uniformly distributed with recesses or protrusions 112 for facilitating the gripping of fingers.

Referring to fig. 5-7, fig. 5 is a schematic structural view of another embodiment of the endoscope probe holder 10 of the present invention, wherein the knob 11 is sleeved on the upper portion of the elastic tube 12, and the clamping rib 111' of the knob 11 is inserted into the two split gaps 124 of the elastic tube 12 without mutual force. The wall of the inner hole of the knob 11 in fig. 6 is provided with two parallel clamping ribs 111' for pressing the outer surface of each segment of the elastic sleeve 12 when the knob 11 is rotated clockwise, so that the inner diameter of the elastic sleeve 12 becomes smaller. The upper portion of the flexible sleeve 12 in fig. 7 has two flexible sleeve segments with a gap 124 therebetween, which can form a central bore 123 for receiving an endoscope probe, and each of the flexible sleeve segments has an upper convex curved surface 121 'such that the segment thickness of the upper portion of the flexible sleeve segment increases in a clockwise direction for pressing against the clamping rib 111' when the knob 11 is rotated clockwise, thereby reducing the inner diameter of the flexible sleeve 12 (i.e., the diameter of the central bore 123).

More than 2 elastic sleeve segments with convex cambered surfaces 121 'can be arranged on the sleeve seat of the elastic sleeve 12, and more than 2 parallel clamping ribs 111' are correspondingly arranged on the inner hole wall of the knob 11, so that the advantage of the arrangement is that each segment can be in line contact with the endoscope probe inserted into the central hole 123, and the stable clamping of the endoscope probe can be realized.

Referring to fig. 8-10, fig. 8 is a schematic structural view of another embodiment of the endoscope probe holder 10 of the present invention, in which the knob 11 is sleeved on the upper portion of the elastic sleeve 12, and the rib 121 "of the elastic sleeve 12 is located between the concave cambered surfaces 111" of the knob 11, and there is no mutual acting force between the two. The inner hole wall of the knob 11 in fig. 9 is provided with two inner concave arc surfaces 111 ″ having a thickness gradually decreasing in a clockwise direction for pressing an outer surface of each of the segments of the elastic tube 12 when the knob 11 is rotated clockwise, so that an inner diameter of the elastic tube 12 becomes smaller. In fig. 10, the upper portion of the elastic sleeve 12 has two elastic sleeve segments with a gap therebetween, the two elastic sleeve segments can form a central hole 123 for inserting the endoscope probe, and a convex rib 121 "is disposed on the outer surface of the segment body of the upper portion of each elastic sleeve segment for pressing against the concave arc 111" when the knob 11 rotates clockwise, so that the inner diameter of the elastic sleeve 12 (i.e., the diameter of the central hole 123) is reduced.

The sleeve seat of the elastic sleeve 12 can be provided with more than 2 elastic sleeve segments with convex ribs 121 ", the inner hole wall of the knob 11 is correspondingly provided with more than 2 concave arc surfaces 111", and the advantage of the arrangement is that each segment can be in line contact with the endoscope probe inserted into the segment, so that the endoscope probe can be stably clamped.

The invention also provides an occluder having an endoscopic probe holder of the invention. The endoscope probe holder is connected to the stopper through a connecting mechanism, which may be a buckle 122 and a catch groove respectively provided on the cannula holder of the endoscope probe holder and the stopper, and the endoscope probe holder may be attached to or detached from the stopper by engaging or disengaging the buckle 122 with or from the catch groove.

Fig. 11 is a schematic structural view of a puncture instrument with an endoscope probe holder according to the present invention, which includes an obturator assembly 20 and a cannula assembly 30, and further includes an endoscope probe holder according to the present invention. Fig. 12 is a schematic view showing a state in which the endoscope probe 40 is inserted into the puncture instrument with the endoscope probe holder according to the present invention.

The endoscope probe fixer of the invention adopts a thread fit or concave-convex profile fit mode to ensure that the endoscope does not shake after being inserted into the stopper component, has the advantages of simple structure and firm fixation, and simultaneously, doctors can determine the tightness degree of the endoscope probe according to own habits, thereby facilitating the operation and judgment of the doctors.

The endoscope probe fixing function is only used when the first puncture outfit punctures, other puncture outfits do not need to puncture, and each minimally invasive surgery usually needs 3-4 sets of puncture outfits. The endoscope probe fixer can be used as a single system, is only provided when the endoscope probe is required to be clamped, can also be provided for doctors independently, and can reduce waste when the doctors determine whether the part is required.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The endoscope probe fixing device comprises a knob (11) and an elastic sleeve (12), and is characterized in that the elastic sleeve (12) is of an inner diameter adjustable structure, matching profiles are arranged on an inner hole of the knob (11) and the periphery of the elastic sleeve (12), and the inner diameter of the elastic sleeve (12) can be reduced or enlarged by clockwise or anticlockwise rotation of the knob (11) along the axis of the inner hole, so that the endoscope probe can be clamped or loosened.

2. The endoscopic probe holder as defined in claim 1, wherein the upper portion of said elastic tube (12) is a tubular structure of 2 or more elastic tube segments having a gap (124); the cooperation profile includes screw thread boss (111) and screw thread (121) on the split upper portion periphery of elastic sleeve on knob (11) hole pore wall, screw thread boss (111) can with screw thread (121) constitute interference fit.

3. The endoscopic probe holder as set forth in claim 1, wherein the upper portion of the elastic tube (12) is a tubular structure composed of 2 or more elastic tube segments having a gap (124), each of the elastic tube segment upper portions being provided with an outwardly convex curved surface (121') such that the thickness of the elastic tube segment upper portions is increased in a clockwise direction; the hole wall of the inner hole of the knob (11) is provided with clamping ribs (111') with the same number of petals as the number of the petals of the elastic sleeve.

4. The endoscopic probe holder as set forth in claim 1, wherein the upper portion of the elastic tube (12) is a tubular structure of 2 or more elastic tube segments having a gap (124), each of the elastic tube segments having a rib (121 ") provided on an outer surface of the upper portion thereof; the inner hole wall of the knob (11) is provided with an inner concave cambered surface (111) with the same number of petals as the number of the petals of the elastic sleeve.

5. An endoscope probe holder according to any of claims 1-4, characterized in that said knob (11) is a semi-spherical structure with a through bore, the outer surface of which is provided with equispaced depressions or protrusions (112) for facilitating finger grip.

6. An endoscope probe holder according to any of claims 1-4, characterized in that the lower part of said elastic sleeve (12) is a sleeve seat, the periphery of which is provided with a catch (122) cooperating with the obturator assembly.

7. An occluder assembly having an endoscopic probe holder according to any one of claims 1 to 6.

8. A puncture instrument comprising an obturator assembly (20) and a cannula assembly (30), characterized by further comprising an endoscopic probe holder (10) according to any one of claims 1 to 6.