CN215018305U - Disposable polyp excising device - Google Patents

Abstract

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a disposable polypectomy ware is related to, including handle, outer tube, cover circle head and be used for controlling the drive assembly that the cover circle head removed, cover circle head sets up the one end at the outer tube, the handle sets up the other end at the outer tube, drive assembly installs on the handle, still including being located the coupling assembling of outer tube, coupling assembling one end and connection drive assembly, the coupling assembling other end and lasso head are connected, and the lasso head passes through coupling assembling and drive assembly and connects, has realized that the fixed completion of cover circle head is cut the cover of polyp and when the unable cover of polyp is cut, and the lasso head drops from the excision ware after the polyp ligation and stays internal completion ligation, waits for the polyp necrosis, realizes the dual-purpose of polypectomy ware, need not to change apparatus, convenient to use when using the doctor.

Description

Disposable polyp excising device

Technical Field

The utility model belongs to the technical field of medical instrument technique and specifically relates to a disposable polyp excising device is related to.

Background

With the development of society and the increasing living standard of people, patients with the phenomenon of polyps in the digestive tract and the large intestine caused by various reasons are more common. At present, a disposable polypectomy device is generally used clinically, and the treatment function is single, but when the root of a polyp is too thick and blood vessels are too rich and cannot be cut by sleeving, other instruments such as a ligation device need to be replaced for treatment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the problem of single function of a polypectomy device in the prior art, a disposable polypectomy device is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a disposable polypectomy ware, includes handle, outer tube, cover circle head and is used for controlling the drive assembly that the cover circle head removed, the cover circle head sets up the one end at the outer tube, the handle sets up the other end at the outer tube, drive assembly installs on the handle, still including being located the coupling assembling of outer tube, coupling assembling one end and connection drive assembly, the coupling assembling other end and the connection of lasso circle head, coupling assembling is used for fixing or releases the cover circle head, and the lasso circle head passes through coupling assembling and drive assembly and connects, has realized that the fixed completion of cover circle head is cut the cover of polyp and when the unable overlap of polyp is cut, and the lasso circle head drops from the excision ware after pricking the polyp and stays internal completion ligation, waits for the polyp necrosis, realizes the dual-purpose of polypectomy ware, need not to change the apparatus when using the doctor, convenient to use.

In order to solve the problem of fixing and releasing the ferrule head, the ferrule head fixing device further comprises a connecting assembly, wherein the connecting assembly comprises an outer connecting pipe, a middle connecting pipe, an inner connecting pipe and a connecting rod, the outer connecting pipe, the middle connecting pipe and the inner connecting pipe are sequentially sleeved in a sliding manner from outside to inside, a first spring is arranged on the outer peripheral surface of the middle connecting pipe, a second spring and a clamping block with a clamping groove are arranged on the outer peripheral surface of the inner connecting pipe, the front end of the inner connecting pipe is fixedly connected with the ferrule head, a notch used for accommodating the rear end of the inner connecting pipe is arranged at the front end of the connecting rod, a bulge matched with the clamping groove is arranged in the notch of the connecting rod, the second spring is positioned outside the notch of the connecting rod, a limiting pipe positioned between the connecting assembly and the handle is arranged in the outer pipe, a limiting groove matched with the first spring is arranged on the inner wall of the limiting pipe, and the inner diameter of the limiting pipe is larger than the outer connecting pipe, the internal diameter of spacing pipe is greater than the external diameter of well connecting pipe, and spacing pipe can be fixed coupling assembling, prevents coupling assembling to continue to move in the outer tube.

In order to solve the problem of being connected between outer tube and the handle, further include the rear end of outer tube is connected through fixed subassembly and handle, fixed subassembly includes protecting pipe, rotatory cover, fixed cover and copper sheathing, the rear end setting of outer tube is in rotatory cover, the front end of protecting pipe arranges around the outer tube, the rear end of protecting pipe is inserted and is established on the front end terminal surface of rotatory cover, the front end of fixed cover is inserted and is established on the rear end terminal surface of rotatory cover, the rear end of fixed cover is inserted and is established on the front end terminal surface of handle, the copper sheathing is located fixed cover front end port, just the front end of copper sheathing is inserted and is established in the outer tube, and the cooperation of protecting pipe, rotatory cover, fixed cover and copper sheathing makes outer tube and handle joint firm.

In order to solve the problem of cutting and bundling the ferrule head sleeve, the driving assembly comprises a sliding ring, a pull rope and a boosting pipe, a sliding groove used for sliding the sliding ring back and forth is formed in the handle, an inner hole used for installing a condenser is formed in the sliding ring fan, the boosting pipe is wrapped on the outer peripheral face of the zipper, the front end of the boosting pipe extends into the tail end of the outer pipe, the rear end of the boosting pipe extends to the rear end of the zipper, the front end of the pull rope sequentially penetrates through the handle, the fixed sleeve, the copper sleeve, the outer pipe and the limiting pipe and is fixed at the rear end of the connecting rod, the wire drawing and the boosting pipe are both fixed on the electrocoagulator, the boosting pipe is designed, the boosting pipe can be conveniently connected with the electrocoagulator, the rigidity of the pull rope is improved, the pull rope is conveniently driven to slide together when the sliding ring slides, and the driving mechanism controls the movement of the ferrule head.

In order to solve the problem that the ferrule head moves excessively, the slip ring further comprises a limiting block arranged in the sliding groove, a through hole for the boosting pipe to pass through is formed in the limiting block, and the sliding distance of the sliding ring can be limited by the aid of the limiting block, so that safety is improved.

In order to solve the hemostatic problem of cover when cutting, further include the electricity congeals the ware and includes electrode plug, fixing base and holding screw, the fixing base is installed in the inner hole of sliding ring and stretches out under the inner hole terminal surface entering spout, be provided with the jack on the fixing base, set up on the fixing base and supply the boosting pipe to alternate and with the through-hole of jack intercommunication, the electrode plug is inserted and is established the jack upper end of fixing base, holding screw sets up the crossing position department at jack and through-hole, just go up holding screw and pass the boosting pipe butt cable and lock cable and boosting pipe in the through-hole of fixing base, adopt the electricity congeals the ware to arouse, electricity congeals ware and electricity congeals ware drive arrangement and switches on, can in time accurately stanch to bleeding point, need not to adopt hemostatic forceps, metal clip or argon gas to solidify hemostasis.

The utility model has the advantages that: the utility model discloses a polyp excising ware outer tube in-connection subassembly's setting realizes that the cover of cover circle head is cut, can be pricked by the cover, will overlap and cut the function integration of excising ware and the ware of prickling by the cover, reduces the change of apparatus, has improved medical efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the present invention at B in FIG. 1;

fig. 4 is an enlarged schematic view of fig. 1 at C according to the present invention;

fig. 5 is an enlarged schematic view of fig. 2 at D according to the present invention;

fig. 6 is a schematic structural view of the initial state of the ligation polypus of the present invention;

FIG. 7 is a schematic structural view showing the abutting state of the polypus ligation outer connecting tube according to the present invention;

FIG. 8 is a schematic view of the positioning of the connecting tube in the ligation of polypus according to the present invention;

FIG. 9 is a schematic view of the positioning state of the connecting tube in the ligation polyp according to the present invention;

FIG. 10 is a schematic structural view illustrating the detachment process of the ligation polypus connecting rod according to the present invention;

FIG. 11 is a schematic view of the snare head of the cerclage polyp of the present invention fully detached from the resector body.

In the figure: 1. the electric coagulation device comprises a handle, 11, a sliding groove, 12, a limiting block, 2, an outer pipe, 3, a ferrule head, 4, a driving assembly, 41, a sliding ring, 42, a pull rope, 43, a boosting pipe, 44, an electric coagulation device, 441, an electrode plug, 442, a fixing seat, 443, a set screw, 5, a connecting assembly, 51, an outer connecting pipe, 52, a middle connecting pipe, 521, a first spring, 53, an inner connecting pipe, 531, a second spring, 532, a clamping groove, 533, a clamping block, 54, a connecting rod, 541, a notch, 542, a protrusion, 6, a limiting pipe, 61, a limiting groove, 7, a fixing assembly, 71, a protecting pipe, 72, a rotating sleeve, 73, a fixing sleeve, 74 and a copper sleeve.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 is a schematic structural diagram of the present invention, a disposable polypectomy device, which comprises a handle 1, an outer tube 2, a snare head 3, and a driving assembly 4 for controlling the movement of the snare head 3, wherein the snare head 3 is disposed at one end of the outer tube 2, the handle 1 is disposed at the other end of the outer tube 2, the driving assembly 4 is mounted on the handle 1, the device further comprises a connecting assembly 5 disposed in the outer tube 2, one end of the connecting assembly 5 is connected to the driving assembly 4, the other end of the connecting assembly 5 is connected to the snare head 3, the snare head 3 is connected to the driving assembly 4 through the connecting assembly 5, the connecting assembly 5 is used for fixing or releasing the snare head 3, the fixation of the snare head 3 to the polyp is achieved, and when the polyp cannot be cut, the snare head 3 falls off from the resectoscope after the polyp ligation and remains in the body to complete the ligation and waits for the polyp to be necrotic, the dual-purpose polypectomy device is realized, the use of a doctor does not need to replace the device, and the use is convenient.

As shown in fig. 2 and 5, the connection assembly 5 includes an outer connection tube 51, a middle connection tube 52, an inner connection tube 53 and a connection rod 54, the outer connection tube 51, the middle connection tube 52 and the inner connection tube 53 are sequentially sleeved from outside to inside in a sliding manner, a first spring 521 is disposed on an outer circumferential surface of the middle connection tube 52, a second spring 531 and a latch 533 with a latch 532 are disposed on an outer circumferential surface of the inner connection tube 53, a front end of the inner connection tube 53 is fixedly connected with the ferrule head 3, a notch 541 for accommodating a rear end of the inner connection tube 53 is disposed at a front end of the connection rod 54, a protrusion 542 matched with the latch 532 is disposed in the notch 541 of the connection rod 54, the second spring 531 is disposed outside the notch 541 of the connection rod 54, and switching between the sleeving and sleeving functions is achieved by adjusting a disengagement force after the latching between the connection tube 54 and the inner connection tube 53.

As shown in fig. 2, a limiting pipe 6 located between the connecting assembly 5 and the handle 1 is arranged in the outer pipe 2, a limiting groove 61 matched with the first spring 521 is arranged on the inner wall of the limiting pipe 6, the inner diameter of the limiting pipe 6 is larger than the outer diameter of the outer connecting pipe 51, the inner diameter of the limiting pipe 6 is larger than the outer diameter of the middle connecting pipe 52, and the limiting pipe 6 can fix the connecting assembly 5 to prevent the connecting assembly 5 from moving continuously in the outer pipe 2.

As shown in fig. 3, the rear end of the outer tube 2 is connected with the handle 1 through the fixing component 7, the fixing component 7 includes a protecting sleeve 71, a rotating sleeve 72, a fixing sleeve 73 and a copper sleeve 74, the rear end of the outer tube 2 is arranged in the rotating sleeve 72, the front end of the protecting sleeve 71 is arranged around the outer tube 2, the rear end of the protecting sleeve 71 is inserted on the front end face of the rotating sleeve 72, the front end of the fixing sleeve 73 is inserted on the rear end face of the rotating sleeve 72, the rear end of the fixing sleeve 73 is inserted on the front end face of the handle 1, the copper sleeve 74 is located in the front end port of the fixing sleeve 73, the front end of the copper sleeve 74 is inserted in the outer tube 2, and the outer tube 2 and the handle 1 are firmly connected through the matching of the protecting sleeve, the rotating sleeve, the fixing sleeve and the copper sleeve in the fixing component 7.

As shown in fig. 1 and 4, the driving assembly 4 includes a slip ring 41, a traction cable 42 and a booster tube 43, the handle 1 is provided with a sliding groove 11 for the sliding of a sliding ring 41 back and forth, the sliding ring 41 is provided with an inner hole for the installation of a condenser 44, the boosting pipe 43 is wrapped on the outer peripheral surface of the zipper, the front end of the boosting pipe 43 extends into the tail end of the outer pipe 2, the rear end of the boosting tube 43 extends to the rear end of the zipper, the front end of the inhaul cable 42 sequentially penetrates through the handle 1, the fixed sleeve 73, the copper sleeve 74, the outer tube 2 and the limiting tube 6 and is fixed at the rear end of the connecting rod 54, the wire drawing and boosting tubes 43 are both fixed on the electrocoagulator 44, the design of the boosting tubes 43, the boosting tube 43 can be conveniently connected with the electrocoagulator 44, the rigidity of the stay cable 42 is improved, when the slip ring 41 slides, the pulling cable 42 is driven to slide together, and the driving mechanism 4 controls the movement of the ferrule head 3.

As shown in fig. 4, a limiting block 12 is disposed in the sliding groove 11, a through hole for the boosting tube 43 to pass through is formed in the limiting block 12, and the design of the limiting block 12 can limit the moving distance of the sliding ring 41, thereby improving the safety.

As shown in fig. 4, the electrocoagulator 44 includes an electrode plug 441, a fixing seat 442 and a set screw 443, the fixing seat 442 is installed in an inner hole of the sliding ring 41 and extends out of a lower end surface of the inner hole to enter the sliding groove 11, an insertion hole is formed in the fixing seat 442, a through hole for the boosting tube 43 to penetrate and communicate with the insertion hole is formed in the fixing seat 442, the electrode plug 441 is inserted into the upper end of the insertion hole of the fixing seat 442, the set screw 443 is disposed at an intersection position of the insertion hole and the through hole, the set screw 443 penetrates through the boosting tube 43 to abut against the pulling cable 42 and lock the pulling cable 42 and the boosting tube 43 in the through hole of the fixing seat 442, the electrocoagulator 44 is excited, the electrocoagulator 44 is conducted with the electrocoagulator driving device, bleeding points can be timely and accurately stopped, and bleeding is not stopped by adopting hemostatic forceps, metal clamps or argon gas coagulation.

One end of each part in the resectoscope, which faces the ferrule head 3, is the front end, and one end, which faces the handle 1, is the rear end.

During the use, judge that the polyp needs to adopt the cerclage or overlap and cut through the doctor, when the polyp can be amputated, adjust coupling assembling 5 and make the separating force behind the inlay card between connecting rod 54 and the interior connecting pipe 53 be greater than the required cutter force who amputates the polyp and make the lasso head 3 can't break away from, overlap the root at the polyp with lasso head 3, drive cable 42 through pulling sliding ring 41, cable 42 passes through coupling assembling 5 pulling lasso head 3 and accomplishes the cover of polyp and cut.

When a plurality of blood vessels at the root of a polyp cannot be cut, the connecting assembly 5 is adjusted to ensure that the separation force after clamping and embedding between the connecting rod 54 and the inner connecting tube 53 is smaller than the cutting force required to cut the polyp so as to separate the ferrule head 3, as shown in fig. 6, the ferrule head 3 is sleeved at the root of the polyp, the pull cable 42 drives the connecting assembly 5 and the ferrule head 3 to move, as shown in fig. 7, the rear end of the outer connecting tube 51 is abutted against the front end of the limiting tube 6 to stop moving, the middle connecting tube 52, the inner connecting tube 53 and the connecting rod 54 can continuously move backwards, as shown in fig. 8, the first spring 521 on the middle connecting tube 52 is popped out and clamped in the limiting groove 61 at the front end of the limiting tube 6, at the moment, the middle connecting tube 52 is locked, the inner connecting tube 53 and the connecting rod 54 can continuously move backwards, as shown in fig. 9, the second spring 531 of the inner connecting tube 53 is popped out and clamped at the rear end of the limiting tube 6, the connecting rod 54 can continuously move backwards, as shown in fig. 10, the bulge 542 of the connecting rod 54 is continuously moved away from the clamping groove 532, the inner end of projection 542 is beveled to facilitate detachment, as shown in FIG. 11, and ferrule head 3 and connection assembly 5 are detached from the resector, leaving the polyp to await necrosis.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (6)

1. The utility model provides a disposable polyp excising device, includes handle (1), outer tube (2), lasso head (3) and is used for controlling drive assembly (4) that lasso head (3) removed, lasso head (3) set up the one end at outer tube (2), handle (1) sets up the other end at outer tube (2), drive assembly (4) are installed on handle (1), characterized by, still including coupling assembling (5) that are located outer tube (2), coupling assembling (5) one end and connection drive assembly (4), coupling assembling (5) other end and lasso head (3) are connected, coupling assembling (5) are used for fixing or release lasso head (3).

2. The single use polyp resector of claim 1, wherein: coupling assembling (5) including outer connecting pipe (51), well connecting pipe (52), in-connection connecting pipe (53) and connecting rod (54), outer connecting pipe (51), well connecting pipe (52) and in-connection connecting pipe (53) slide in proper order from outside to inside and cup joint, be provided with first spring (521) on the outer peripheral face of well connecting pipe (52), be provided with second spring (531) and fixture block (533) that have draw-in groove (532) on the outer peripheral face of in-connection connecting pipe (53), the front end and the ferrule head (3) fixed connection of in-connection connecting pipe (53), the front end of connecting rod (54) is provided with breach (541) that are used for holding in-connection (53) rear end, be provided with in breach (541) of connecting rod (54) and draw-in groove (532) matched with protruding (542), second spring (531) are located the breach (541) outside of connecting rod (54), be provided with spacing pipe(s) (between coupling assembling (5) and handle (1) in outer tube (2) 6) The inner wall of the limiting pipe (6) is provided with a limiting groove (61) matched with the first spring (521), the inner diameter of the limiting pipe (6) is larger than the outer diameter of the outer connecting pipe (51), and the inner diameter of the limiting pipe (6) is larger than the outer diameter of the middle connecting pipe (52).

3. The single use polyp resector of claim 1, wherein: the rear end of outer tube (2) is connected through fixed subassembly (7) and handle (1), fixed subassembly (7) include protecting pipe (71), rotatory cover (72), fixed cover (73) and copper sheathing (74), the rear end setting of outer tube (2) is in rotatory cover (72), the front end of protecting pipe (71) is arranged around outer tube (2), the rear end of protecting pipe (71) is inserted and is established on the front end terminal surface of rotatory cover (72), the front end of fixed cover (73) is inserted and is established on the rear end terminal surface of rotatory cover (72), the rear end of fixed cover (73) is inserted and is established on the front end terminal surface of handle (1), copper sheathing (74) are located fixed cover (73) front end port, just the front end of copper sheathing (74) is inserted and is established in outer tube (2).

4. The single use polyp resector of claim 1, wherein: the driving assembly (4) comprises a sliding ring (41), a stay cable (42) and a boosting pipe (43), a sliding groove (11) used for enabling the sliding ring (41) to slide back and forth is formed in the handle (1), an inner hole used for installing a power condenser (44) is formed in the sliding ring (41), the boosting pipe (43) is wrapped on the outer peripheral surface of the zipper, the front end of the boosting pipe (43) extends into the tail end of the outer pipe (2), the rear end of the boosting pipe (43) extends to the rear end of the zipper, the front end of the stay cable (42) sequentially penetrates through the handle (1), a fixing sleeve (73), a copper sleeve (74), the outer pipe (2) and a limiting pipe (6) and is fixed at the rear end of a connecting rod (54), and the wire drawing and the boosting pipe (43) are fixed on the electrocoagulator (44).

5. The single use polyp resector of claim 4, wherein: a limiting block (12) is arranged in the sliding groove (11), and a through hole for the boosting pipe (43) to pass through is formed in the limiting block (12).

6. The single use polyp resector of claim 4, wherein: the electrocoagulator (44) comprises an electrode plug (441), a fixed seat (442) and a set screw (443), wherein the fixed seat (442) is installed in an inner hole of the sliding ring (41) and stretches out of the lower end face of the inner hole to enter the sliding groove (11), an insertion hole is formed in the fixed seat (442), a through hole for the penetration of the boosting pipe (43) and communicated with the insertion hole is formed in the fixed seat (442), the electrode plug (441) is inserted in the upper end of the insertion hole in the fixed seat (442), the set screw (443) is arranged at the intersection position of the insertion hole and the through hole, and the set screw (443) penetrates through the boosting pipe (43) to abut against the inhaul cable (42) and locks the inhaul cable (42) and the boosting pipe (43) in the through hole of the fixed seat (442).

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