CN221490167U - Handle slide of laser resectoscope, laser resectoscope and tissue cutting and crushing device - Google Patents

Abstract

The utility model proposes a handle slide of a laser resectoscope, a laser resectoscope and a tissue cutting and crushing device, wherein the handle slide comprises a slide body, a positioning hole and a connecting hole are arranged on the slide body, and an optical fiber tube is arranged at the connecting hole; the laser resectoscope comprises an electrode and a laser guide tube, a positioning column matched with the positioning hole is fixed to the right end of the laser guide tube, an optical fiber entry hole is arranged on the positioning column, and the laser guide tube is connected with the optical fiber introduction hole through the optical fiber entry hole; the tissue cutting and crushing device comprises an outer sheath, a tissue crushing mirror and a laser resectoscope, and the working end of the tissue crushing mirror or the laser resectoscope is placed in the outer sheath. The handle slide of the utility model facilitates the switching of the electrode and the laser guide tube, and at the same time reduces the equipment cost of the laser resectoscope and the workload of cleaning and maintenance; the tissue crushing mirror and the laser resectoscope share an outer sheath, so that the treatment operations such as plasma resection, laser resection, tissue crushing, and transurethral bladder cavity suturing are smooth.

Description

Handle slide of laser resectoscope, laser resectoscope and tissue cutting and crushing device

Technical Field

The utility model relates to the technical field of tissue cutting and pulverizing devices, in particular to a handle slide seat of a laser resectoscope, a laser resectoscope and a tissue cutting and pulverizing device.

Background Art

The resectoscope used in prostate surgery usually includes an endoscope, a handle assembly, a cutting instrument, etc. The handle assembly usually includes a fixed handle, a movable handle, and a handle slider, etc. It is a pre-assembled set of structures, and the handle assembly cannot be disassembled during subsequent use. Cutting instruments such as electrodes or laser assemblies (laser assemblies include optical fibers and laser guide tubes) are connected to the handle slider, and the handle slider and the cutting instrument are pushed along the endoscope by the movable handle. The resectoscope that uses electrode resection operation and the laser mirror that uses laser resection operation have different structures such as handle slides, resulting in the need to prepare a set of independent handle assemblies and other equipment for the resectoscope and the laser mirror. Moreover, during the operation, if the cutting instrument needs to be replaced, the entire set of resectoscopes needs to be disassembled and the corresponding handle slides need to be replaced, affecting the progress of the operation, or it is necessary to prepare a set of resectoscopes and laser mirrors, which increases the equipment cost and the number of equipment required for subsequent cleaning and maintenance.

In addition, with the improvement of social and economic conditions, the average height of Chinese people has increased significantly, and the male urethra has lengthened. The working length of conventional electrosurgery and laser scopes on the market is relatively short, generally around 19 cm. When treating prostate diseases and bladder lesions in some patients, the electrosurgery ring or laser fiber cannot effectively reach the lesion site, making the operation extremely difficult. The diameter of the water inlet and outlet of the conventional electrosurgery scope is 5 mm. The intraoperative bladder pressure is high, which may lead to the risk of bladder rupture. The instrument channel of the tissue pulverizer is less than 5 mm. Conventional ultrasonic scalpels and separation forceps cannot pass through because their diameter is greater than 5 mm, and transurethral cystoscopic intracavitary operations cannot be completed.

Utility Model Content

The utility model provides a handle slide for a laser resectoscope, a laser resectoscope and a tissue cutting and crushing device, so that electrode resection and laser resection can share a handle slide, which is convenient for switching between electrodes and laser guide tubes and combining two energy instruments for surgery, while reducing the equipment cost of the resectoscope and laser mirror and the workload of cleaning and maintenance.

The technical solution of the utility model is implemented as follows: a handle slide of a laser resectoscope includes a slide body, a connecting groove is provided on the slide body, a positioning hole is provided on the slide body on one side of the connecting groove, an optical fiber introduction hole is provided on the slide body at the right end of the connecting groove, and an optical fiber tube is provided at the right end of the optical fiber introduction hole.

Furthermore, an optical fiber fixing assembly is provided on the optical fiber tube, and the optical fiber fixing assembly includes a spring clamp fixed to the right end of the optical fiber tube, and a locking nut is threaded on the outer side of the spring clamp, and the optical fiber is fixed by the spring clamp and the locking nut.

A laser resectoscope comprises an electrode, a laser assembly and a handle slide. The laser assembly comprises an optical fiber and a laser guide tube. A positioning column matching a positioning hole is fixed to the right end of the laser guide tube. An optical fiber entry hole is provided on the positioning column. The laser guide tube is connected to the optical fiber introduction hole through the optical fiber entry hole.

Furthermore, a sealing ring is arranged in the optical fiber entrance hole; a sealing block and a guide sleeve are arranged on the electrode and the laser guide tube, and the guide sleeve is a semicircular elastic clamp.

A tissue cutting and pulverizing device comprises an outer sheath, a tissue pulverizing mirror and the laser resectoscope, wherein the working ends of the tissue pulverizing mirror and the laser resectoscope are placed in the outer sheath. The tissue pulverizing mirror and the laser resectoscope share an outer sheath, and the tissue pulverizing mirror and the laser resectoscope can be replaced as needed without removing the outer sheath from the patient's body, so that plasma resection, laser excision, tissue pulverization, transurethral bladder suturing and other treatment operations are smooth.

Furthermore, the working end length of the outer sheath is 215-220mm, the working end length of the inner sheath of the laser resectoscope is 225-230mm, and the endoscope length of the laser resectoscope is 320-325mm. By lengthening the outer sheath, inner sheath, endoscope, electrode, laser guide tube and other components by 2-3cm, it can effectively solve the problems of the short working length of conventional resectoscopes in the current market and the difficulty in treating bladder lesions.

Furthermore, it also includes a water inlet and a water outlet, the water inlet is arranged on the outer sheath or the inner sheath of the laser resectoscope, and the water outlet is arranged on the outer sheath or the inner sheath of the laser resectoscope, and the diameters of the water inlet and the water outlet are both above 5.5 mm, such as 6 mm, 7 mm, etc.; the inner diameter of the water inlet and outlet of the tissue crushing mirror is above 5.5 mm, such as 6 mm, 7 mm, etc.

Furthermore, a negative pressure control valve is provided on the water outlet.

By increasing the diameter of the water inlet, water outlet and water inlet and outlet, and cooperating with the negative pressure control valve to achieve negative pressure suction, the drainage is smooth and the pressure in the bladder cavity is reduced.

Furthermore, the outer diameter of the outer sheath is 8.2mm-8.9mm, and the smallest inner diameter of the instrument channel in the outer sheath is 7.6mm-8.3mm; the outer diameter of the inner sheath of the resectoscope is 7.5mm-8.2mm, and the smallest inner diameter of the instrument channel in the inner sheath is 6.5mm-7mm; the smallest instrument channel of the tissue pulverizer is 4.5mm-5.6mm.

The increased diameter of the instrument channel of the tissue morcellator scope allows for easy insertion of both standard and specialty instruments.

Furthermore, the first eyepiece of the tissue pulverizer is tilted, and the second eyepiece of the laser resectoscope is located at the tail end of the laser resectoscope. The first eyepiece of the tissue pulverizer is tilted to prevent the first eyepiece and the connected camera device from affecting the surgical operation.

Beneficial effects of the utility model:

The handle slide of the utility model can be used for connecting electrodes and laser guide tubes by setting positioning holes and optical fiber introduction holes, so that electrode resection and laser resection can share the same handle assembly, which is convenient for switching of electrode and laser assemblies and combining two energy devices for surgery, while reducing the equipment cost of the resectoscope and the workload of cleaning and maintenance.

The tissue pulverizer and laser resectoscope of the utility model share an outer sheath, which facilitates smooth treatment operations such as plasma resection, laser resection, tissue pulverization, and transurethral suturing in the bladder cavity. Moreover, the working end lengths of the outer sheath and the laser resectoscope are extended by 2-3 cm compared with conventional equipment, effectively solving the problems of short working lengths of conventional resectoscopes in the current market and difficulties in treating lesions in the bladder. The diameters of the water inlet, water outlet, and water inlet and outlet of the tissue pulverizer are increased to 5.5 mm-7 mm, and negative pressure suction is added to ensure smooth drainage and reduce the pressure in the bladder cavity.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a laser resectoscope;

FIG2 is a partial enlarged view of A in FIG1 ;

FIG3 is a schematic diagram of the structure of a tissue crushing mirror;

FIG4 is a schematic diagram of the structure of an electrode;

FIG5 is a schematic diagram of the structure of a laser guide tube;

FIG6 is a schematic diagram of the structure of a positioning column;

Fig. 7 is the structural representation of inner sheath;

FIG. 8 is a schematic diagram of the structure of the outer sheath.

Sliding seat body 1, connecting groove 2, electrode 3, positioning hole 4, optical fiber introduction hole 5, optical fiber tube 6, laser guide tube 7, optical fiber entry hole 8, sealing ring 9, optical fiber fixing assembly 10, positioning column 11, inner sheath 12, outer sheath 13, tissue crushing mirror 14, laser resectoscope 15, endoscope 16, fixed handle 17, movable handle 18, handle sliding seat 19, connecting seat 20, sealing block 21, guide sleeve 22, water inlet 23, water outlet 24, negative pressure control valve 25, water inlet and outlet 26, first eyepiece 27, second eyepiece 28.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The terms "left, right" and the like in the present application are relative to the positions shown in FIG. 1 .

Example 1

As shown in Figures 1-2, a handle slide of a laser resectoscope includes a slide body 1, a connecting groove 2 is provided on the slide body 1, a positioning hole 4 is provided on the slide body 1 on one side of the connecting groove 2, and the positioning hole 4 is used to fix the electrode terminal. When the handle slide 19 is connected to the electrode 3, the electrode terminal is clamped in the positioning hole 4.

An optical fiber introduction hole 5 is provided on the slide body 1 at the right end of the connecting groove 2. An optical fiber tube 6 is fixed to the right end of the optical fiber introduction hole 5. The optical fiber tube 6 is used for the access of optical fibers.

The handle slide also includes an optical fiber fixing member 10, which can be a locking screw, a push-type elastic locking member, etc. The above optical fiber fixing members 10 are all existing conventional structures and are used on the handle slide of the existing laser mirror. As shown in Figure 2, the optical fiber fixing member 10 can be installed on the slide body 1 at the optical fiber introduction hole 5. If it is a push-type elastic locking member, after the optical fiber passes through the optical fiber introduction hole 5, the push-type elastic locking member is pressed to fix the optical fiber; the optical fiber fixing member 10 can also be installed on the optical fiber tube 6, as long as the optical fiber can be fixed.

Example 2

As shown in Figures 1-2 and 4-7, a laser resectoscope includes an endoscope 16, a handle assembly, an electrode 3 and a laser assembly. The laser assembly includes an optical fiber and a laser guide tube 7. A positioning column 11 that cooperates with the positioning hole 4 is fixed to the right end of the laser guide tube 7. The positioning column 11 is similar to the electrode terminal. The end of the positioning column 11 is clamped in the positioning hole 4 to fix the laser guide tube 7. A fiber entrance hole 8 is provided at the position of the positioning column 11 corresponding to the fiber introduction hole 5. The right end of the laser guide tube 7 is fixed in the fiber entrance hole 8. The laser guide tube 7 is connected to the fiber introduction hole 5 through the fiber entrance hole 8. The optical fiber enters the laser guide tube 7 through the fiber tube 6, the fiber introduction hole 5 and the fiber entrance hole 8 in sequence.

A detachable sealing ring 9 is filled in the fiber entrance hole 8, and the sealing ring 9 is located at the right end of the laser guide tube 7. The inner diameter of the sealing ring 9 matches the outer diameter of the optical fiber, so that the optical fiber can pass through the sealing ring 9 to ensure the sealing of the right end of the laser guide tube 7. The sealing ring 9 is replaced in each operation, and the sealing ring 9 is pulled out from the fiber entrance hole 8 and a new sealing ring 9 is installed to avoid cross infection. The laser guide tube 7 and the positioning column 11 can also be directly designed as disposable items and replaced in each operation.

The handle assembly includes a fixed handle 17, a movable handle 18 and the handle slide 19 described in Example 1. The endoscope 16, the fixed handle 17, the movable handle 18 and the electrode 3 are all existing conventional structures.

The slide body 1 is slidably mounted on the right end of the endoscope 16, one end of the movable handle 18 is hinged to the slide body 1, and the other end is hinged to the endoscope 16. The slide body 1 is pushed to move along the endoscope 16 by the movable handle 18, and the fixed handle 17 is fixed to the endoscope 16 through the connecting seat 20. The connecting seat 20 is provided with a positioning slot, and the electrode 3 and the laser guide tube 7 are both provided with a sealing block 21 that cooperates with the positioning slot, as well as a guide sleeve 22 that slides along the left end of the endoscope 16, and the guide sleeve 22 is a semicircular elastic clamp.

The method of using the laser resectoscope is as follows: when the handle slide 19 is connected to the laser guide tube 7, the positioning column 11 of the laser guide tube 7 is clamped in the positioning hole 4, the laser guide tube 7 is connected to the endoscope 16 through the guide sleeve 22, and then the sealing block 21 of the laser guide tube 7 is clamped in the positioning slot to complete the fixation of the laser guide tube 7; then the optical fiber is passed through the optical fiber tube 6, the optical fiber introduction hole 5, the sealing ring 9 and the laser guide tube 7 in sequence, and the optical fiber is fixed by the optical fiber fixing part 10; finally, the endoscope 16 with the laser component is installed in the inner sheath 12, and the handle slide 19, the laser guide tube 7 and the optical fiber are pushed to move by the movable handle 18.

The installation operation of the electrode 3 is the same as that of the prior art.

Example 3

As shown in Figures 1 and 3-8, a tissue cutting and crushing device includes an outer sheath 13, a tissue crushing mirror 14 and the laser resectoscope 15 described in Example 2. According to surgical needs, the working end (i.e., the left end) of the tissue crushing mirror 14 or the laser resectoscope 15 can be placed in the outer sheath 13. The connection between the tissue crushing mirror 14 and the laser resectoscope 15 and the outer sheath 13, such as plugging, etc., are all conventional technologies.

A tissue cutting and pulverizing device also includes a water inlet 23 and a water outlet 24, wherein the water inlet 23 and the water outlet 24 are both arranged on the outer sheath 13 (as shown in FIG8 ), or the water outlet 24 is arranged on the outer sheath 13, and the water inlet 23 is arranged on the inner sheath 12 of the laser resectoscope 15 (not shown in the figure), or the water inlet 23 and the water outlet 24 are both arranged on the inner sheath 12 (not shown in the figure). A detachable negative pressure control valve 25 is screwed to the water outlet side of the water outlet 24. A water inlet and outlet 26 are fixed on the endoscope 16 of the tissue pulverizing mirror 14, and an inlet of an instrument channel is arranged at the tail end of the tissue pulverizing mirror 14. The first eyepiece 27 of the tissue pulverizing mirror 14 is tilted and fixed, and the second eyepiece 28 of the laser resectoscope 15 is located at the tail end of the resectoscope 15.

The parameter settings of some components of this embodiment (the water inlet 23 and the water outlet 24 are both arranged on the outer sheath 13) are shown in the following table:

The method for using the tissue cutting and pulverizing device comprises the following steps:

Tissue cutting: If the electrode 3 is required for resection surgery, one end of the electrode terminal is clamped into the positioning hole 4, the electrode 3 is connected to the endoscope 16 through the guide sleeve 22, and the sealing block 21 of the electrode 3 is clamped into the positioning slot; then the inner sheath 12 is installed in the outer sheath 13, the endoscope 16 with the electrode 3 is installed in the inner sheath 12, and the handle slide 19 and the electrode 3 are pushed to move by the movable handle 18;

If it is necessary to replace the electrode 3 with a laser component, take out the endoscope 16 from the inner sheath 12, remove the electrode 3 from the endoscope 16, and then clamp the positioning column 11 of the laser guide tube 7 into the positioning hole 4. The laser guide tube 7 is connected to the endoscope 16 through the guide sleeve 22, and the sealing block 21 of the laser guide tube 7 is clamped into the positioning slot to complete the fixation of the laser guide tube 7; then the optical fiber is passed through the optical fiber tube 6, the optical fiber introduction hole 5, the sealing ring 9 and the laser guide tube 7 in turn, and finally the optical fiber is fixed by the optical fiber fixing part 10; the endoscope 16 with the laser component is installed in the inner sheath 12, and the handle slide 19, the laser guide tube 7 and the optical fiber are pushed to move by the movable handle 18.

Tissue pulverization: The laser resectoscope 15 is taken out from the outer sheath 13 , and the endoscope of the tissue pulverizer 14 is installed in the outer sheath 13 . The surgical instrument reaches the lesion site through the instrument channel of the tissue pulverizer 14 .

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a handle slide of laser electron microscope, includes the slide body, is provided with the spread groove on the slide body, is provided with the locating hole on the slide body of spread groove one side, its characterized in that: the slide seat body at the right end of the connecting groove is provided with an optical fiber leading-in hole, and the right end of the optical fiber leading-in hole is provided with an optical fiber pipe.

2. The handle slide of a laser resectoscope according to claim 1, wherein: the optical fiber guide device also comprises an optical fiber fixing piece which is arranged on the sliding seat body at the optical fiber guide hole or the optical fiber tube.

3. A laser electric cutting mirror is characterized in that: the handle sliding seat comprises an electrode, a laser assembly and the handle sliding seat according to claim 1 or 2, wherein the laser assembly comprises an optical fiber and a laser guide tube, a positioning column matched with the positioning hole is fixed at the right end of the laser guide tube, an optical fiber access hole is formed in the positioning column, and the laser guide tube is communicated with the optical fiber access hole through the optical fiber access hole.

4. A laser resectoscope according to claim 3, characterised in that: a detachable sealing ring is arranged in the optical fiber inlet hole; the electrode and the laser guide tube are provided with a sealing block and a guide sleeve, and the guide sleeve is a semicircular elastic holding clamp.

5. A tissue cutting and morcellating device, characterized in that: comprising a sheath, a tissue disruption mirror and the laser resectoscope according to claim 3 or 4, the working end of the tissue disruption mirror or the laser resectoscope being disposed within the sheath.

6. A tissue cutting morcellating device according to claim 5, wherein: the working end length of the outer sheath is 215-220mm, the working end length of the inner sheath of the laser resectoscope is 225-230mm, and the endoscope length of the laser resectoscope is 320-325mm.

7. A tissue cutting morcellating device according to claim 5, wherein: the laser cutting mirror also comprises a water inlet and a water outlet, wherein the water inlet is arranged on the outer sheath or the inner sheath of the laser cutting mirror, the water outlet is arranged on the outer sheath or the inner sheath of the laser cutting mirror, and the inner diameters of the water inlet and the water outlet are both more than 5.5 mm; the inner diameter of the water inlet and outlet of the tissue crushing mirror is more than 5.5 mm.

8. A tissue cutting morcellating device according to any one of claims 5 to 7, wherein: the outer diameter of the outer sheath is 8.2mm-8.9mm, and the inner diameter of the minimum instrument pore canal of the outer sheath is 7.6mm-8.3mm; the outer diameter of the inner sheath of the laser resectoscope is 7.5-8.2 mm, and the inner diameter of the minimum instrument pore canal of the inner sheath is 6.5-7 mm; the minimum instrument channel of the tissue disruption mirror is 4.5mm-5.6mm.

9. A tissue cutting morcellating device according to claim 7, wherein: the water outlet is provided with a detachable negative pressure control valve.

10. A tissue cutting morcellating device according to claim 5, wherein: the first eyepiece of the tissue crushing mirror is obliquely arranged, and the second eyepiece of the laser resectoscope is positioned at the tail end of the resectoscope.