CN212490092U - Uterine resection knife tube - Google Patents
Uterine resection knife tube Download PDFInfo
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- CN212490092U CN212490092U CN202020551103.8U CN202020551103U CN212490092U CN 212490092 U CN212490092 U CN 212490092U CN 202020551103 U CN202020551103 U CN 202020551103U CN 212490092 U CN212490092 U CN 212490092U
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a hysterectomy knife tube, which comprises an outer sleeve and an inner knife tube movably inserted in the outer sleeve, wherein the rear end of the outer sleeve is a locking part connected with a handheld motor, the rear end of the locking part is integrally formed with a flange along the circumferential direction, and a screw rod is vertically fixed on the rear end surface of the flange; the length of the inner cutter tube is greater than that of the outer sleeve, the inner cutter tube is hollow, a rotary cutter head is arranged at the front end of the inner cutter tube, the rear end of the inner cutter tube extends out of the rear end of the outer sleeve and is integrally formed with a flange plate, a through hole for a screw to pass through is formed in the position, corresponding to the screw, of the flange plate, the part, penetrating through the flange plate, of the screw is in threaded connection with an adjusting nut, a reset spring is movably sleeved on the screw between the flange plate and the flange plate, and the length of the reset spring in a natural state is greater than the. The cutting knife tube has strong applicability, can not cause damage to vaginal tissue when a uterus is cut through a vagina, and has good cutting effect.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to hysterectomy knife pipe.
Background
The electric hysterectomy device is a gynecological surgical instrument consisting of a plurality of products, such as a DZ type electric hysterectomy device, and consists of a handheld motor, a resecting knife tube, a uterus lifter, a uterine puncture needle, uterine graspers, myoma drills, knot pushers, strippers, puncture sleeves, measuring rods, guide rods, dilators, cervical clamps and converters, is matched with a laparoscope for use, and is mainly suitable for surgeries such as excision of uterus and uterine myoma. When the electric hysterectomy device is used, the uterine or hysteromyoma is resected by entering through an abdominal cavity and a vagina, correspondingly, the existing resecting knife tube is also divided into an abdominal type resecting knife tube and a female type resecting knife tube, the main difference is that the front end of the female type resecting knife tube is provided with an inner core protection head to prevent a sharp knife head from damaging vaginal tissues when the knife head is inserted through the vagina, but the protection head is fixed at the front end of the resecting knife tube, so that the knife head is not convenient to well play a cutting role when the uterus is resected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the above-mentioned problem that exists, designed a uterus excision knife pipe, should excise the knife pipe and both can use when the uterus is amputated through the peritoneum, also can use when the uterus is amputated through the vagina, can not cause the damage to the vaginal tissue when getting into the uterus through the vagina, cutting effect is good moreover.
In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:
a uterine curettage knife tube comprises an outer sleeve and an inner knife tube movably inserted in the outer sleeve, wherein the rear end of the outer sleeve is a locking part connected with a handheld motor, the rear end of the locking part is integrally formed with a flange along the circumferential direction, and a screw is vertically fixed on the rear end surface of the flange; the length of the inner cutter tube is greater than that of the outer sleeve, the inner cutter tube is hollow, a rotary cutter head is arranged at the front end of the inner cutter tube, the rear end of the inner cutter tube extends out of the rear end of the outer sleeve and is integrally formed with a flange plate, a through hole for a screw to pass through is formed in the position, corresponding to the screw, of the flange plate, the part, penetrating through the flange plate, of the screw is in threaded connection with an adjusting nut, a reset spring is movably sleeved on the screw between the flange plate and the flange plate, and the length of the reset spring in a natural state is greater than the.
Furthermore, a rubber plug is inserted at the rear end of the inner knife tube, a jack communicated with the inside of the inner knife tube is formed in the rubber plug, and the diameter of the jack is smaller than the inner diameter of the inner knife tube.
Furthermore, the outer sleeve, the inner knife tube, the screw rod, the reset spring and the adjusting nut are all made of medical-grade stainless steel.
The utility model has the advantages that:
the cutting knife tube can be used for abdominal cavity cutting of uterus and vaginal cavity cutting of uterus, and has strong adaptability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the internal structure of the rotary cutter head of the present invention retracted into the front end of the outer sleeve;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic view of the external structure of the rotary cutter head of the present invention extending out of the front end of the outer sleeve.
In the drawings, the components represented by the respective reference numerals are listed below:
1-outer sleeve, 11-locking part, 12-flange, 2-inner cutter tube, 21-rotary cutter head, 22-flange plate, 221-through hole, 3-screw, 4-adjusting nut, 5-reset spring and 6-rubber plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, a hysterectomy knife tube comprises an outer sleeve 1 and an inner knife tube 2 movably inserted in the outer sleeve 1, wherein the rear end of the outer sleeve 1 is provided with a locking part 11 connected with a handheld motor, when in use, the hysterectomy knife tube is inserted into the handheld motor, the locking part 11 on the outer sleeve 1 is locked with a locking bayonet on the handheld motor, the hysterectomy knife tube is driven to rotate by the handheld motor, the rear end of the locking part 11 is integrally formed with a flange 12 along the circumferential direction, and a screw 3 is vertically fixed on the rear end surface of the flange 12; the length of the inner cutter tube 2 is larger than that of the outer sleeve 1, the inner cutter tube 2 is hollow, the inner part of the inner cutter tube 2 is a uterus nipper channel, when in use, the uterus nipper is inserted into the inner cutter tube 2 from the rear end of the inner cutter tube 2, used for grasping the uterus for cutting and taking out the cut tissue, the front end of the inner cutter tube 2 is provided with a rotary cutter head 21, the rear end of the inner cutter tube extends out from the rear end of the outer sleeve tube 1 and is integrally formed with a flange 22, the flange 22 and the screw rod 3 are provided with through holes 221 for the screw rod 3 to pass through, the part of the screw rod 3 passing through the flange 22 is screwed with an adjusting nut 4 for adjusting the distance between the flange 12 and the flange 22, and then adjust the rotary cutter head 21 to stretch out or retract into the front end of the outer sleeve 1, the screw 3 between the flange 12 and the flange 22 is movably sleeved with a return spring 5, and the length of the return spring 5 in a natural state is greater than the difference value of the lengths of the inner cutter tube 2 and the outer sleeve 1.
In order to prevent the gas in the cavity from leaking out from the space between the uterus nipper and the inner cutter tube 2, the rear end of the inner cutter tube 2 is inserted with a rubber plug 6, the rubber plug is provided with a jack communicated with the inside of the inner cutter tube 2, and the diameter of the jack is smaller than the inner diameter of the inner cutter tube 2.
In order to facilitate the cleaning and disinfection of the resection knife tube, the outer sleeve 1, the inner knife tube 2, the screw rod 3, the reset spring 5 and the adjusting nut 4 are all made of medical-grade stainless steel, and the inner knife tube 2 can be taken out from the outer sleeve 1 after the adjusting nut 3 is screwed off so as to be thoroughly disinfected.
The cutting knife tube can be used for cutting the uterus through the abdominal cavity, can also be used for cutting the uterus through the vagina, has strong adaptability, and can rotate the adjusting nut 4 forwards before the puncture cannula is inserted into the abdominal cavity when the uterus is cut through the abdominal cavity, so that the rotary cutter head 21 at the front end of the inner knife tube 2 extends out of the front end of the outer cannula 1. When the uterus is resected through the vagina, the adjusting nut 4 is rotated backwards until the return spring 5 between the flange 12 and the flange 22 is in a natural state before the uterus is inserted into the vagina, and because the length of the return spring 5 in the natural state is greater than the length difference between the inner cutter tube 2 and the outer sleeve tube 1, the rotary cutter head 21 at the front end of the inner cutter tube 2 is retracted into the front end of the outer sleeve tube 1, such as the length of the outer sleeve tube 1 is 300mm, the length of the inner cutter tube is 320mm, and the length of the return spring in the natural state is 35mm, when the return spring 5 is in the natural state, the rotary cutter head 21 at the front end of the inner cutter tube 2 is retracted into the front end of the outer sleeve tube 1 for 15mm, so that the rotary cutter head 21 is prevented from damaging the vaginal tissue when being inserted into the vagina, and the adjusting nut 4 is rotated before the uterus is inserted.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should be able to make changes, alterations, additions or substitutions within the scope of the present invention.
Claims (3)
1. A uterus resection knife tube is characterized in that: the tool comprises an outer sleeve and an inner cutter tube movably inserted in the outer sleeve, wherein the rear end of the outer sleeve is a locking part connected with a handheld motor, the rear end of the locking part is integrally formed with a flange along the circumferential direction, and a screw is vertically fixed on the rear end surface of the flange; the length of the inner cutter tube is greater than that of the outer sleeve, the inner cutter tube is hollow, a rotary cutter head is arranged at the front end of the inner cutter tube, the rear end of the inner cutter tube extends out of the rear end of the outer sleeve and is integrally formed with a flange plate, a through hole for a screw to pass through is formed in the position, corresponding to the screw, of the flange plate, the part, penetrating through the flange plate, of the screw is in threaded connection with an adjusting nut, a reset spring is movably sleeved on the screw between the flange plate and the flange plate, and the length of the reset spring in a natural state is greater than the.
2. The hysterectomy blade tube of claim 1, wherein: the rear end of the inner knife tube is inserted with a rubber plug, the rubber plug is provided with a jack communicated with the inside of the inner knife tube, and the diameter of the jack is smaller than the inner diameter of the inner knife tube.
3. The hysterectomy blade tube of claim 1, wherein: the outer sleeve, the inner knife tube, the screw, the reset spring and the adjusting nut are all made of medical-grade stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551103.8U CN212490092U (en) | 2020-04-15 | 2020-04-15 | Uterine resection knife tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551103.8U CN212490092U (en) | 2020-04-15 | 2020-04-15 | Uterine resection knife tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212490092U true CN212490092U (en) | 2021-02-09 |
Family
ID=74431259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020551103.8U Active CN212490092U (en) | 2020-04-15 | 2020-04-15 | Uterine resection knife tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212490092U (en) |
-
2020
- 2020-04-15 CN CN202020551103.8U patent/CN212490092U/en active Active
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